SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE COURSE - T1 GENERAL This document must be used for training purposes only Under no circumstances should this document be used as a reference It will not be updated. All rights reserved No part of this manual may be reproduced in any form, by photostat, microfilm, retrieval system, or any other means, without the prior written permission of AIRBUS S.A.S. SINGLE AISLE TECHNICAL TRAINING MANUAL GENERAL U2C05411 - U0HT1M0 Structure General (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Structural Breakdown and Zoning (3) . . . . . . . . . . . . . . . . . . . . . . . . 18 Ground Handling (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Electrostatic Discharge (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Computer Removal and Installation (3) . . . . . . . . . . . . . . . . . . . . . . 56 Maintenance External Visit (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 MAINTENANCE COURSE - T1 01 - GENERAL TABLE OF CONTENTS Oct 17, 2005 Page 1 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURE GENERAL (1) AIRCRAFT MATERIALS METALLIC MATERIALS The basic A/C structure is made of aluminum alloys with stainless steel and titanium alloys in specific areas. COMPOSITE MATERIALS U2C05411 - U0HT1M0 - UM01P1000000001 Composite materials are used for primary and secondary structure. Composite materials represent about 15% of the A/C structural weight. Carbon Fiber Reinforced Plastic (CFRP) is mainly used for primary structures, whilst Aramid Fiber Reinforced Plastic (AFRP) and Glass Fiber Reinforced Plastic (GFRP) are only used for secondary structures. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 2 U2C05411 - U0HT1M0 - UM01P1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL AIRCRAFT MATERIALS / COMPOSITE MATERIALS MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 3 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURE GENERAL (1) STRUCTURE PROTECTION AIRCRAFT DRAINAGE Wings and fuselage have different types of drains. Holes and gaps are meant to be used for a natural drainage of the fluid collection points. Drain holes are drilled before application of pretreatments. Remote drains are used when natural drainage is not possible. SURFACE PRETREATMENT U2C05411 - U0HT1M0 - UM01P1000000001 The protection of the structure against corrosion is achieved by means of appropriate surface pretreatment of the metallic parts. Aluminum alloys: the primary protection is generally a pure aluminum cladding. The main pretreatment used is the unsealed chromic acid anodizing. Titanium alloys: surface interfaying with aluminum alloy parts are zinc sprayed. The other titanium alloy surfaces are left bare. Titanium fasteners are either sulphuric acid anodized or aluminum coated. Composite materials are left bare. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 4 U2C05411 - U0HT1M0 - UM01P1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURE PROTECTION / SURFACE PRETREATMENT MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 5 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURE GENERAL (1) STRUCTURE PROTECTION (continued) PAINT SYSTEM U2C05411 - U0HT1M0 - UM01P1000000001 Before the final paint system, all aluminum parts are primed. The paint system used includes polyurethane primers and paint on the external surfaces, and epoxy primers and polyurethane paint on the internal surfaces. Anti-slip paint is the overwing escape zones. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 6 U2C05411 - U0HT1M0 - UM01P1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURE PROTECTION / PAINT SYSTEM MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 7 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURE GENERAL (1) STRUCTURE PROTECTION (continued) NO STEP AREAS Protective mats are required on the horizontal stabilizer as it is a carbon fiber structure. JACKING POINTS U2C05411 - U0HT1M0 - UM01P1000000001 Three jacking points are provided, one below each wing outboard of the pylon and one in front of the NLG bay. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 8 U2C05411 - U0HT1M0 - UM01P1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL JACKING POINTS MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 9 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURE GENERAL (1) A318 STRUCTURE DIFFERENCES The Main structure differences between the A319/A320/A321 and the A318 are due to the reduced length of the fuselage. There are several general structure changes, laser beam welded structures and the vertical stabilizer fin tip extension. GENERAL STRUCTURE CHANGES U2C05411 - U0HT1M0 - UM01P1000000001 The main general structure changes are: - on section 17, due to reduced length of the fuselage, the longitudinal beams, the seat rails and the Z-profiles are replaced by new ones. The crossbeams at FRame 52, FR53 and FR54 are removed. New crossbeams are installed between FR55 to FR64, - due to its location in the non-cylindrical part of the fuselage, a new cargo sill box replaces the A319/A320/A321 one's, in section 17, - on section 15, the A319/A320/A321 skin panels have been modified. For weight reduction the A318 skin panels are thinner than the A319/A320/A321 one's, - the aft part of the belly fairing is modified due to an overlap with non-cylindrical part of the fuselage. To avoid interference with cargo compartment door, the A318 belly fairing is two panels shorter than the A319/A320/A321 one's. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 10 U2C05411 - U0HT1M0 - UM01P1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL A318 STRUCTURE DIFFERENCES / GENERAL STRUCTURE CHANGES MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 11 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURE GENERAL (1) A318 STRUCTURE DIFFERENCES (continued) VERTICAL STABILIZER U2C05411 - U0HT1M0 - UM01P1000000001 Compared with A319/A320/A321 A/Cs, the A318 vertical stabilizer fin tip is 750 mm (29,5 in.) longer. The new developed tip is completely made of GFRP. There is an additional fin leading edge panel. There is a new spar and a new CFRP adaptor box, between the fin base and the fin tip. The metallic rudder tip is longer by 100 mm in vertical direction. The rudder trailing edge is increased in width by 50 mm. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 12 U2C05411 - U0HT1M0 - UM01P1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL A318 STRUCTURE DIFFERENCES / VERTICAL STABILIZER MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 13 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURE GENERAL (1) A318 STRUCTURE DIFFERENCES (continued) LASER BEAM WELDING U2C05411 - U0HT1M0 - UM01P1000000001 The technology used for the A319/A320/A321 A/Cs is riveted skin/stringer. On the A318, the skin/stringer connections are welded. The new laser beam welded skin panels are installed in: - the sections 13/14, FR24 to FR35, stringers 18 to 32, - the sections 16/17, FR47/54 to FR64, stringers 32 to 41. The skin panels are made thicker where the stringers are welded onto them. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 14 U2C05411 - U0HT1M0 - UM01P1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL A318 STRUCTURE DIFFERENCES / LASER BEAM WELDING MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 15 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURE GENERAL (1) A318 STRUCTURE DIFFERENCES (continued) CARGO DOORS U2C05411 - U0HT1M0 - UM01P1000000001 The A318 forward and aft cargo doors are smaller. The new cargo door width is reduced from 1.82 m (71.5 in) to 1.28 m (50.5 in). The under-floor cargo offers a usable volume of 21.21 m3. There is no containerized cargo system option. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 16 U2C05411 - U0HT1M0 - UM01P1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL A318 STRUCTURE DIFFERENCES / CARGO DOORS MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURE GENERAL (1) Oct 14, 2005 Page 17 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURAL BREAKDOWN AND ZONING (3) REFERENCE AXES The structure elements are installed according to the following reference axes. The X axis in the longitudinal direction of the fuselage, the Y axis in the direction of the wing span and the Z axis in the vertical direction. The cross section P presents a typical fuselage section at frame 47. U2C05411 - U0HT1M0 - UM01D1000000001 NOTE: Note: The reference (station 0) for all structural measurements for the X axis is set at 100 in (254 cm) forward of the A/C nose. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 18 U2C05411 - U0HT1M0 - UM01D1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL REFERENCE AXES MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 19 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURAL BREAKDOWN AND ZONING (3) ATA CHAPTERS The A/C structure is divided according to the ATA 100 specifications. SECTION NUMBERS U2C05411 - U0HT1M0 - UM01D1000000001 Each major part of the A/C receives a section number. The fuselage section base number is 10. The fuselage is divided into various sections for manufacturing reasons. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 20 U2C05411 - U0HT1M0 - UM01D1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL SECTION NUMBERS MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 21 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURAL BREAKDOWN AND ZONING (3) SECTION NUMBERS (continued) WING AND TAIL PLANE U2C05411 - U0HT1M0 - UM01D1000000001 The general wing section base number is 20. The general tail plane section base number is 30. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 22 U2C05411 - U0HT1M0 - UM01D1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL SECTION NUMBERS / WING AND TAIL PLANE MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 23 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURAL BREAKDOWN AND ZONING (3) SECTION NUMBERS (continued) ENGINE, LANDING GEAR AND BELLY FAIRING U2C05411 - U0HT1M0 - UM01D1000000001 The engine section base number is 40. The L/G section base number is 50. The general belly fairing section base number is 60. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 24 U2C05411 - U0HT1M0 - UM01D1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL SECTION NUMBERS / ENGINE, LANDING GEAR AND BELLY FAIRING MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 25 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURAL BREAKDOWN AND ZONING (3) STATION NUMBERS FUSELAGE U2C05411 - U0HT1M0 - UM01D1000000001 The STAtion number is the distance in centimeters of a cross-section from a reference point. The station/frame numbers shown agree with the section boundaries. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 26 U2C05411 - U0HT1M0 - UM01D1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL STATION NUMBERS / FUSELAGE MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 27 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURAL BREAKDOWN AND ZONING (3) STATION NUMBERS (continued) VERTICAL STABILIZER U2C05411 - U0HT1M0 - UM01D1000000001 For the vertical stabilizer the reference station is Z=0 at the vertical Z-axis. Due to the fin tip extension, the A318 station numbers have changed. The new additional rib 12N is on the STA597. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 28 U2C05411 - U0HT1M0 - UM01D1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL STATION NUMBERS / VERTICAL STABILIZER MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 29 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURAL BREAKDOWN AND ZONING (3) STATION NUMBERS (continued) HORIZONTAL STABILIZER, ENGINE AND WING U2C05411 - U0HT1M0 - UM01D1000000001 For the horizontal stabilizer the reference station is y=0 at the A/C Y axis. For the wings, the reference station is the wing reference axis (WY). WY is located at 1868 mm (73.54 in) from the A/C X axis. For the engines, station numbers are different depending on the version. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 30 U2C05411 - U0HT1M0 - UM01D1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL STATION NUMBERS / HORIZONTAL STABILIZER, ENGINE AND WING MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 31 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURAL BREAKDOWN AND ZONING (3) ZONES NUMBERS U2C05411 - U0HT1M0 - UM01D1000000001 There are 8 major zones for the A/C. Each major zone is identified by the first digit of a three digits number. The even numbers identify the zones on the RH side of the A/C, while odd numbers identify the zones on the LH side of the A/C. The sub-zone 320 identifies the vertical stabilizer. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 32 U2C05411 - U0HT1M0 - UM01D1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL ZONES NUMBERS MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 33 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURAL BREAKDOWN AND ZONING (3) ZONES NUMBERS (continued) WING (UPPER SURFACE) AND HORIZONTAL STABILIZER U2C05411 - U0HT1M0 - UM01D1000000001 The 500 numbers identify the LH wing zones, while the 600 numbers identify the RH wing zones. The sub-zones 330 and 340 identify the LH and RH side of the horizontal stabilizer. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 34 U2C05411 - U0HT1M0 - UM01D1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL ZONES NUMBERS / WING (UPPER SURFACE) AND HORIZONTAL STABILIZER MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 35 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURAL BREAKDOWN AND ZONING (3) ZONES NUMBERS (continued) U2C05411 - U0HT1M0 - UM01D1000000001 WING (LOWER SURFACE), BELLY FAIRING AND LANDING GEAR The sub-zone 710 identifies the NLG. The sub-zones 730 and 740 identify the LH and RH MLG. The sub-zone 190 indicates the belly fairing. 734 and 744 are the MLG door zone numbers. Access doors and panels are identified by the number of the zone in which the panel is installed followed by a two letter suffix. These two letters are used to indicate the doors and panels. The first letter indicates which access door or panel it is, starting from the reference axis (A=first, B=second, ..., G=seventh, etc...). The second letter indicates the access door or panel location: - T=top (upper) surface, - B=bottom (lower) surface, - R=right side, - L=left side, - Z=internal, - F=floor panel, - W=sidewall panel, - C=ceiling panel. Here is an example of access panels on the left wing lower surface. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 36 U2C05411 - U0HT1M0 - UM01D1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL ZONES NUMBERS / WING (LOWER SURFACE), BELLY FAIRING AND LANDING GEAR MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 37 SINGLE AISLE TECHNICAL TRAINING MANUAL STRUCTURAL BREAKDOWN AND ZONING (3) ZONES NUMBERS (continued) NACELLE, PYLON, ENGINE AND DOOR U2C05411 - U0HT1M0 - UM01D1000000001 The difference between the LH and RH pylon and nacelle is made with the ten digits of the zone number 400. The difference between the LH side and RH side is identified by the last digit (Tens digit: odd for he left and even for the right). Within one engine, an odd zone number indicates the LH side and an even zone number indicates the RH side of the engine. The major zone 800 identifies the doors. MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 38 U2C05411 - U0HT1M0 - UM01D1000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL ZONES NUMBERS / NACELLE, PYLON, ENGINE AND DOOR MAINTENANCE COURSE - T1 01 - GENERAL STRUCTURAL BREAKDOWN AND ZONING (3) Oct 14, 2005 Page 39 SINGLE AISLE TECHNICAL TRAINING MANUAL GROUND HANDLING (1) SERVICING POINTS U2C05411 - U0HT1M0 - UM01P2000000001 The ground service connections layout is the same on the AIRBUS A318 and A319.The main difference between A320 and A321 servicing point is a second potable water draining panel in the center of the A/C on the A320. MAINTENANCE COURSE - T1 01 - GENERAL GROUND HANDLING (1) Oct 14, 2005 Page 40 U2C05411 - U0HT1M0 - UM01P2000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL SERVICING POINTS MAINTENANCE COURSE - T1 01 - GENERAL GROUND HANDLING (1) Oct 14, 2005 Page 41 SINGLE AISLE TECHNICAL TRAINING MANUAL GROUND HANDLING (1) A/C SERVICING ARRANGEMENT On the A318, note that special care must be taken during manual cargo loading and unloading of the forward cargo compartment, because of the close proximity of the engine air intake to the cargo loading vehicles (conveyor belt). U2C05411 - U0HT1M0 - UM01P2000000001 NOTE: Note: The use of a self-propelled conveyor belt is not recommended by Airbus Industrie. The main difference between the A318/A319 and the A320/A321 servicing arrangement is that the A320 and A321 can have a bulk loader on the bulk cargo door. MAINTENANCE COURSE - T1 01 - GENERAL GROUND HANDLING (1) Oct 14, 2005 Page 42 U2C05411 - U0HT1M0 - UM01P2000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL A/C SERVICING ARRANGEMENT MAINTENANCE COURSE - T1 01 - GENERAL GROUND HANDLING (1) Oct 14, 2005 Page 43 SINGLE AISLE TECHNICAL TRAINING MANUAL GROUND HANDLING (1) TURNING RADII U2C05411 - U0HT1M0 - UM01P2000000001 The different turning radii are shown on a steering diagram. "Y" is the distance between the centerline of the A/C longitudinal axis (X-axis) and the theoretical center of turn for turning radius. "A" matches the minimum turning width for a 180° turn. "Y, A" and the radii "R3, R4, R5 and R6" values depend on two parameters: effective turn angle and steering angle. MAINTENANCE COURSE - T1 01 - GENERAL GROUND HANDLING (1) Oct 14, 2005 Page 44 U2C05411 - U0HT1M0 - UM01P2000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL TURNING RADII MAINTENANCE COURSE - T1 01 - GENERAL GROUND HANDLING (1) Oct 14, 2005 Page 45 SINGLE AISLE TECHNICAL TRAINING MANUAL ELECTROSTATIC DISCHARGE (3) ELECTROSTATIC DISCHARGE PROBLEMS U2C05411 - U0HT1M0 - UM01D3000000001 Electro Static Discharge (ESD) is generated by rubbing materials with each other. By moving over plastic materials (synthetic fibers), wearing synthetic fiber clothing, electrical charges build up on the body. Thus voltages of 12000 to 35000 volts can develop on a person. Touching connector pins of computer units, a discharge path is formed through wiring and components. Integrated Circuit (IC) chips can be partly damaged or totally destroyed. Rubbing materials from the "tribo-electris" series against each other and then separating them from each other causes a build-up of electrostatic charges. If the materials are far apart in the series, there will be a higher electric charge. MAINTENANCE COURSE - T1 01 - GENERAL ELECTROSTATIC DISCHARGE (3) Oct 14, 2005 Page 46 U2C05411 - U0HT1M0 - UM01D3000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL ELECTROSTATIC DISCHARGE PROBLEMS MAINTENANCE COURSE - T1 01 - GENERAL ELECTROSTATIC DISCHARGE (3) Oct 14, 2005 Page 47 SINGLE AISLE TECHNICAL TRAINING MANUAL ELECTROSTATIC DISCHARGE (3) ELECTROSTATIC DISCHARGE PROTECTION U2C05411 - U0HT1M0 - UM01D3000000001 Here are some precautions to avoid damage of electronic equipment by ESD. Line Replaceable Units (LRUs) that are sensitive to ESD are identified by a black and yellow label on equipment face. MAINTENANCE COURSE - T1 01 - GENERAL ELECTROSTATIC DISCHARGE (3) Oct 14, 2005 Page 48 U2C05411 - U0HT1M0 - UM01D3000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL ELECTROSTATIC DISCHARGE PROTECTION MAINTENANCE COURSE - T1 01 - GENERAL ELECTROSTATIC DISCHARGE (3) Oct 14, 2005 Page 49 SINGLE AISLE TECHNICAL TRAINING MANUAL ELECTROSTATIC DISCHARGE (3) LRU REMOVAL U2C05411 - U0HT1M0 - UM01D3000000001 Replacing an LRU bearing the black and yellow label requires these precautions. MAINTENANCE COURSE - T1 01 - GENERAL ELECTROSTATIC DISCHARGE (3) Oct 14, 2005 Page 50 U2C05411 - U0HT1M0 - UM01D3000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL LRU REMOVAL MAINTENANCE COURSE - T1 01 - GENERAL ELECTROSTATIC DISCHARGE (3) Oct 14, 2005 Page 51 SINGLE AISLE TECHNICAL TRAINING MANUAL ELECTROSTATIC DISCHARGE (3) LRU TEST U2C05411 - U0HT1M0 - UM01D3000000001 Testing of installed LRUs requires the following precautions. MAINTENANCE COURSE - T1 01 - GENERAL ELECTROSTATIC DISCHARGE (3) Oct 14, 2005 Page 52 U2C05411 - U0HT1M0 - UM01D3000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL LRU TEST MAINTENANCE COURSE - T1 01 - GENERAL ELECTROSTATIC DISCHARGE (3) Oct 14, 2005 Page 53 SINGLE AISLE TECHNICAL TRAINING MANUAL ELECTROSTATIC DISCHARGE (3) WORK STATION U2C05411 - U0HT1M0 - UM01D3000000001 The removal and testing of printed-circuit boards from an LRU bearing the black and yellow label, is carried out as follows. MAINTENANCE COURSE - T1 01 - GENERAL ELECTROSTATIC DISCHARGE (3) Oct 14, 2005 Page 54 U2C05411 - U0HT1M0 - UM01D3000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL WORK STATION MAINTENANCE COURSE - T1 01 - GENERAL ELECTROSTATIC DISCHARGE (3) Oct 14, 2005 Page 55 SINGLE AISLE TECHNICAL TRAINING MANUAL COMPUTER REMOVAL AND INSTALLATION (3) COMPUTER REMOVAL/INSTALLATION U2C05411 - U0HT1M0 - UM01D2000000001 Before starting a computer removal/installation procedure, the A/C has to be set-up for maintenance. The first task is to make sure that the ground service network is energized and the access door is open and accessible. Then make sure that the C/Bs listed in the removal of the computer procedure of Aircraft Maintenance Manual (AMM) is open. The first action is to loosen the nut and then to lower the nut. When the nut is lowered, pull the computer on its rack to disconnect the electrical connectors and remove the computer from its rack. Before starting a computer installation procedure, clean and do a visual inspection of the component interface and of the adjacent area. First remove the blanking caps from the electrical connectors and make sure that the electrical connectors are clean and in the correct condition. Then install the computer on its rack and push it on its rack to connect the electrical connectors. Now you can engage the nuts on the studs and tighten them. The installation is finished. You can close the C/B. The last actions of the computer installation are to do a test through the MCDU and to close the access. Make sure that the work area is clean and clear of tools and other items, close the access door and remove the access platform. MAINTENANCE COURSE - T1 01 - GENERAL COMPUTER REMOVAL AND INSTALLATION (3) Oct 14, 2005 Page 56 U2C05411 - U0HT1M0 - UM01D2000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL COMPUTER REMOVAL/INSTALLATION MAINTENANCE COURSE - T1 01 - GENERAL COMPUTER REMOVAL AND INSTALLATION (3) Oct 14, 2005 Page 57 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) U2C05411 - U0HT1M0 - UM01D4000000001 PRESENTATION This film presents the A321 outside safety inspection and cockpit Check-List (CL) to be performed before powering the A/C for maintenance purposes. Various main stations have been defined. The inspection starts with the nose station. First verify that the NLG chocks are in place. Then, observe that the NLG doors are closed. Make sure that the NLG safety pin is installed. The NLG steering pin must be as required. Finally, verify that the A/C is electrically grounded. The second step consists of inspecting the right MLG. Start by checking that the MLG door is closed. Then, verify that the MLG safety sleeve is installed. Lastly, observe that the MLG chocks are in place. Let us continue with the right engine station, the first thing to do is to make sure that the engine right side access doors are secured. The same must be done for the left side. Check that the engine fan cowls and thrust reverser cowls are secured. The right wing is the 4th station. Observe the position of the slats and then, the flaps. The spoilers must be retracted. Then move to the left wing station. Here again observe the position of the flaps and then, the slats. Although make sure that the spoilers are retracted. The next step is the left engine station. Check that the engine right side access doors are secured. Then pass around the engine to verify that the left side access doors are secured. Make sure that the engine fan cowls and thrust reverser cowls are secured. Proceed with the left MLG station. The Ram Air Turbine (RAT) safety device must be in the stowed position. Continue by checking that the MLG door is closed and that the MLG safety sleeve is installed. Before moving on, observe that the MLG chocks are in place. In the A/C area station you have to make sure that the A/C area is clean and clear of tools and any other items. Now you have to check the 9th station: the external power receptacle. Verify that the external power is connected and available. Finally enter the cockpit for the last station. Start by checking the rear and the overhead circuit breaker, then have a look to the emergency equipment. This consists in: verifying that the MAINTENANCE COURSE - T1 01 - GENERAL escape ropes are present, observing that the fire extinguisher is in position, making sure that the cockpit is equipped with smoke hoods, checking that the fire protective gloves are present, ensuring the crash axe is in position, checking that the cockpit is equipped with life vest, verifying that the oxygen masks are present, observing that the flash lights are in position. You must then make sure that the wipers are off. BATtery 1 and 2 P/BSW must be off and their voltage should be about 25 volts. Proceed by setting the BAT1 P/BSW to AUTO. Then, set the BAT2 P/BSW to AUTO, check that the right hand dome light is on. Verify that the speed brake handle is in the RETract disarm position. If the speed brake handle disagrees with the surface position maintenance action is due. On the center pedestal make sure that the thrust levers are in the idle position. Engine master switches 1 and 2 must be in the OFF position and the engine ignition mode selector in the NORMal position. Observe that the flap handle is set according to surface position. If engine reverse cowls have to be opened for maintenance action, the slats must to be retracted. Still on the center pedestal, check that the radar is off, also verify that the ATC transponder is off. Make sure that the gravity gear extension crank handle is in the reset stowed position. On the instrument panel observe that the three green triangles on the LanDinG GEAR panel are on. The control safety check list should now have been accomplished. On the overhead panel set the EXTernal PoWeR P/BSW to ON, also set the GENerator 1 P/BSW to on and the GEN2 P/SW to ON. Scan and check that no amber lights are on except GEN1 and 2 FAULT light on panel 44VU. The GALY & CAB P/BSW should be as required. Finally verify that there is no light on the VENTilation panel. The A/C is now ready for maintenance. NOTE: This film shows an A321 but the procedure is also valid for A318, A319 and A320 aircrafts. MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 58 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL PRESENTATION MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 59 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) STEP BY STEP The following topics develop step by step the previous film presentation. NOSE STATION AND EXTERNAL POWER RECEPTACLE To the station 1, in first, verify that the NLG chocks are in place. Then, observe that the NLG doors are closed. Make sure that the NLG safety pin is installed. The steering pin must be as required. Finally, verify that the A/C is electrically grounded. U2C05411 - U0HT1M0 - UM01D4000000001 NOTE: Note: The A/C can also be grounded from the MLG. For the station 9, verify that the external power is connected and available. MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 60 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL NOSE STATION AND EXTERNAL POWER RECEPTACLE MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 61 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) RIGHT AND LEFT MLG STATION U2C05411 - U0HT1M0 - UM01D4000000001 The station 2 and 7 consist of inspecting the Right (R) and Left (L) MLG. Start by checking that the MLG door is closed. Then, verify that the MLG safety sleeve is installed. Finally, observe that the MLG chocks are in place. To the left station, the Ram Air Turbine (RAT) stowed position safety device must be installed. MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 62 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL RIGHT AND LEFT MLG STATION MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 63 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) RIGHT AND LEFT ENGINE STATION RIGHT AND LEFT ENGINE SIDE ACCESS DOORS U2C05411 - U0HT1M0 - UM01D4000000001 On station 3, the first thing to do is to make sure that the engine right and left side access doors are secured. The same must be done on station 6. MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 64 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL RIGHT AND LEFT ENGINE STATION / RIGHT AND LEFT ENGINE SIDE ACCESS DOORS MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 65 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) RIGHT AND LEFT ENGINE STATION (continued) ENGINE FAN COWLS AND THRUST REVERSER COWLS U2C05411 - U0HT1M0 - UM01D4000000001 Check that the engine fan cowls and thrust reverser cowls are secured. MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 66 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL RIGHT AND LEFT ENGINE STATION / ENGINE FAN COWLS AND THRUST REVERSER COWLS MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 67 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) RIGHT AND LEFT WING STATION U2C05411 - U0HT1M0 - UM01D4000000001 The R and L wing are the 4 and 5 stations. Confirm the position of the slats and then, the flaps. The spoilers must be retracted. MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 68 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL RIGHT AND LEFT WING STATION MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 69 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) AIRCRAFT AREA U2C05411 - U0HT1M0 - UM01D4000000001 In the A/C area station 8, you have to make sure that the A/C area is clean and clear of tools, other items and FOD. MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 70 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL AIRCRAFT AREA MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 71 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) COCKPIT STATION REAR AND OVERHEAD C/B PANELS U2C05411 - U0HT1M0 - UM01D4000000001 Start by checking that the rear C/Bs and the overhead C/Bs are in closed position. MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 72 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL COCKPIT STATION / REAR AND OVERHEAD C/B PANELS MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 73 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) COCKPIT STATION (continued) EMERGENCY EQUIPMENT U2C05411 - U0HT1M0 - UM01D4000000001 Then, have a look the emergency equipment. This consists in verifying that the escape ropes are present, observing that the fire extinguisher is in position, making sure that the cockpit is equipped with smoke hoods, checking that the fire protective gloves are present, ensuring that the crash axe is in position, checking that the cockpit is equipped with life vests, verifying that the oxygen masks are present and observing that the flash lights are in position. MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 74 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL COCKPIT STATION / EMERGENCY EQUIPMENT MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 75 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) COCKPIT STATION (continued) PEDESTAL PANEL CHECK LIST U2C05411 - U0HT1M0 - UM01D4000000001 On the center pedestal, verify that the speed brake handle is in the retract/disarm position. If the speed brake handle disagrees with the surface position, maintenance action is due. Make sure that the thrust levers are in the IDLE position. ENG MASTER SWs 1 and 2 must be in the OFF position and the engine ignition mode selector in the NORMal position. Observe that the flap handle is set according to surface position. If engine reverser cowls have to be opened for maintenance action, the slats must be retracted. Check that the radar is off. Also, verify that the Air Traffic Control (ATC) transponder is off. Make sure that the gravity gear extension handle is in the reset and stowed position. MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 76 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL COCKPIT STATION / PEDESTAL PANEL CHECK LIST MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 77 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) COCKPIT STATION (continued) OVERHEAD PANEL CHECK LIST AND A/C POWER SUPPLY You must then make sure that the wipers are off. BATteries 1 & 2 P/BSWs must be OFF and the voltage should be about 25 volts. Proceed by setting the BAT 1 P/BSW to AUTO position. Then, set the BAT 2 P/BSW to AUTO position. Note: if BAT voltage is below 25V, a charging cycle of 20 minutes is required. Check that the right hand dome light is on. A/C power supply procedure: On the overhead panel, set the EXTernal PoWeR P/BSW to ON. Also, set the GEN 1 P/BSW to ON and the GEN 2 P/BSW to ON. Scan and check that no amber lights are on except GENerator (GEN) 1 and GEN 2 FAULT lights on panel 35VU. The GALY & CAB P/BSW should be as required. Finally, verify there is no light on the ventilation panel. The A/C is now ready to maintenance. U2C05411 - U0HT1M0 - UM01D4000000001 NOTE: MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 78 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL COCKPIT STATION / OVERHEAD PANEL CHECK LIST AND A/C POWER SUPPLY MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 79 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE EXTERNAL VISIT (3) COCKPIT STATION (continued) MAIN INSTRUMENT PANEL CHECK LIST AND CONTROLS SAFETY CHECK LIST COMPLETED U2C05411 - U0HT1M0 - UM01D4000000001 On the instrument panel, make sure that the L/G lever is in the down position and confirm that the three green arrows on the L/G panel are on. The control safety CL should now have been accomplished. MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 80 U2C05411 - U0HT1M0 - UM01D4000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL COCKPIT STATION / MAIN INSTRUMENT PANEL CHECK LIST AND CONTROLS SAFETY CHECK LIST COMPLETED MAINTENANCE COURSE - T1 01 - GENERAL MAINTENANCE EXTERNAL VISIT (3) Oct 14, 2005 Page 81 AIRBUS S.A.S. 31707 BLAGNAC cedex, FRANCE STM REFERENCE U2C05411 OCTOBER 2005 PRINTED IN FRANCE AIRBUS S.A.S. 2005 ALL RIGHTS RESERVED AN EADS JOINT COMPANY WITH BAE SYSTEMS