EWIS (ELECTRICAL WIRING INTERVONNECT SYSTEM)
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Is a both concept and practice that embraces wires, cables, harness, connectors,
terminals and all other electrical devices.
It refers to the system of electrical wiring and related components within an
aircraft.
EWIS includes wiring harnesses, connectors, and various related hardware that
together ensure the proper functioning of an aircraft’s electrical systems.
MYLAR
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It protects the electrical system under the floorboard, in case the water leaked on the
floorboard.
HOW TO PREVENT CORROSION
 The most important means for preventing corrosion is to keep aircraft free of
moisture.
 A thorough rinsing and cleaning of aircraft will remove salt and other corrosive
agents. Exposed areas such as the landing gear and cooling vents need extra
attention, as well as any other joints, gaps, and hinges where debris collects.
 Chipped or delaminating paint needs to be properly striped or sanded and repainted.
 Industrial-grade protectants and lubricants help seal the metal against moisture, and
need to be periodically applied to aircraft.
 During severe weather or wet conditions, aircraft should be covered and sheltered. It
is important to keep some form of ventilation, so moisture does not accumulate.
WHAT IS JORAMCO
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JORAMCO has built a soundtrack record as a leading commercial aircraft
MAINTENANCE, REPAIR and OVERHAUL (MRO).
JORAMCO also offer services from Airbus, Boeing, and Embraer fleets.
HUMAN FACTOR
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An environmental job factors that affects human performance
12 DIRTY DOZEN



PRESSURE
STRESS
FATIGUE
> LACK OF ASSERTIVENESS
> LACK OF AWARNESS
> LACK OF COMMUNICATION



DISTRACTION
NORMS
COMPLACENCY
>LACK OF KNOWLEDGE
> LACK OF TEAMWORK
> LACK OF RESOURCES
LOPA - Layout of Passenger Accommodation
CDDL - Cabin Defect Deferred Log
CDL - Configuration Deviation List
CFI - Carry Forward Items
TSO - Technical Standard Order
TSN - Time Since New
MSN - Manufacturer’s Serial Number
GPU - Ground Power Unit
APU - Auxiliary Power Unit
AMOS -Aircraft Maintenance Operation Standard
ETOPS - Extended-range Twin-Engine Operational Performance Standards
AOG -Aircraft on Ground
AMM - Aircraft Maintenance Manual
CMM - Component Maintenance Manual
MMEL -Master Minimum Equipment List
MEL - Minimum Equipment List
FOD - Foreign Object Debris
IPC - Illustrated Parts Catalog
LRU - Line Replaceable Unit
CDCCL - Critical Design Configuration Control Limit
PSIU - Passenger Service Information Unit
PSU - Passenger Service Unit
CEO - Current Engine Option
NEO - New Engine Option
MEL-Minimum Equipment List
- [ ] List of part or equipment that can be inoperative without grounding the aircraft
- The Importance is to permit the aircraft operation with inoperative items for a
period of time
Categories
- [ ] Cat A - 1 Day/24hrs or 1 flight cycle
- [ ] Cat B - 3 Days
- [ ] Cat C - 10 Days
- [ ] Cat D - 120 Days
Go Item
- [ ] Allows to dispatched with no conditions but for limited time of period
- Seats
- Seatbelts
Go If
- [ ] A dispatch is permitted for a period of time with specific dispatch conditions
- Slide Raft - go if the certain seat is blocked
No Go
- [ ] A dispatch is not permitted and requires corrective maintenance or action before
returning to service
- Crash Axe
- Escape Rope
- Megaphone
A320 Doors 8
140 - 170 seats
A321 Doors 8 (NEO 10Doors)
180 - 220 seats
A330 Doors 8
406 max seats
Safety Management System
- [x] SMS is a guideline for safety/risk management identy /mitigate safety risk before it
escalates into major issue
- [ ] And to remind us for Safety at work to prevent the accident & incidents in workplace
operations
- [x] And also to remind of using the proper PPE
- Safety shoes
- High Visibility Vest
- Hard Hat/Gloves
- Safety Goggles or Face Shields
Accident
- event that may result to damage or injury
Incident
- event that may not result to damage or injury
Routine
First thing that we do on our duty is we conduct a meeting with the production planning
and discussing for how many scheduled aircraft’s for a routine checks and workloads
then after the meeting we will withdraw our proper tools and getting also a proper
reference before going to aircrafts.
Before we enter or climb up using the ladder we first make sure that the ladder is
serviceable and safe to used and we also check the aircraft’s door if it’s pressurized or
not.
And after that
We check the CML if there’s a remarks for cabin and if there’s any, we will proceed to
rectify:
But first:
- [x] We check the said location
- [ ] Check the defect if it’s valid
- [x] Check it to the IPC to get a correct figure and part number
- [ ] Check it to the AMOS (Aircraft Maintenance Operation Standard) to check if the
parts are available:
- If it’s not we raised it to the ADD or MEL
- [x] Then after that we go to AMM/CMM to check the reference need and proper tools
before proceeding
- But before proceeding:
* We check the ground time and
* Check the Manpower
NTF (NON TEXTILE FLOORING) galley matting
Removal
- [x] First thing that we’re going to do is get the reference so we have a basis
- [ ] Then remove first the metal plate of the partition of the galley matting and carpet
- [x] Then remove the cabin attendant seat
- [ ] Then next is remove the dry sealant within the galley
- [x] Then next is other person is pulling the matting and other is scraping the adhesive
from the matting so it’s easy to remove
- [ ] Then after completely remove the galley matting clean the remaining adhesive from
the surface
Replacement
- [x] If applicable pull out slowly the adhesive from the matting and carefully install the
matting from the surface
- [ ] And if there’s no any adhesive in the matting itself get a heavy duty adhesive tape and
stick it to the surface then stick the matting
- [x] Then after completely installed the matting get a sealant and installed it on every
corner of the matting and let it dry
- [ ] Then next is install the cabin attendant seat
- [x] And last is put it back the metal plate
- [ ] And clean the working area