NZQA registered unit standard
3902 version 5
Page 1 of 3
Title
Clean the gas path of aircraft gas turbine engines
Level
4
Credits
2
Purpose
People credited with this unit standard are able to: clean the
gas path of aircraft gas turbine engines, and complete activities
related to the cleaning task.
Classification
Aeronautical Engineering > Aircraft Servicing
Available grade
Achieved
Explanatory notes
1
All tasks are to be carried out in accordance with enterprise procedures, the
enterprise being the organisation carrying out the work. Enterprise procedures
referred to in this unit standard are the applicable procedures found in the following:
enterprise exposition; manufacturer publications; Government and local body
legislation; airworthiness authority requirements.
2
Definition
Foreign object debris (FOD) – anything that can find its way into an aircraft engine or
flight control mechanisms that could possibly cause damage to aircraft, equipment, or
people.
Outcomes and evidence requirements
Outcome 1
Clean the gas path of the aircraft gas turbine engine.
Evidence requirements
1.1
Engine to be cleaned is identified by matching aircraft registration with
documentation.
1.2
Resources are obtained and checked for serviceability and status in accordance
with enterprise procedures.
Range
1.3
may include but is not limited to – tools, publications, cleaning
materials, cleaning equipment, safety equipment and clothing.
Engine is prepared for cleaning in accordance with enterprise procedures.
Range
ServiceIQ
SSB Code 9068
location, configuration, protective blanks, protective covers.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
3902 version 5
Page 2 of 3
1.4
Equipment is positioned for cleaning in accordance with enterprise procedures.
1.5
Engine is cleaned using an abrasive medium or by washing in accordance with
enterprise procedures.
Range
location, engine motored over, cleaning medium applied, engine
shut down.
Outcome 2
Complete activities related to the cleaning task.
Evidence requirements
2.1
Post-cleaning engine inspection is carried out in accordance with enterprise
procedures.
2.2
Post-cleaning engine run is arranged in accordance with enterprise procedures.
Range
approved ground run area, area cleared of FOD, approved ground
run personnel.
2.3
Tools, materials, equipment, and publications are checked and returned to
service or storage and/or disposed of in accordance with enterprise procedures.
2.4
Work and aircraft area are left ready for further tasks in accordance with
enterprise procedures.
2.5
Documentation is completed in accordance with enterprise procedures.
Planned review date
31 December 2018
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
19 June 1995
31 December 2016
Revision
2
7 August 1997
31 December 2016
Revision
3
8 May 2001
31December 2016
Review
4
20 June 2006
31 December 2016
Review
5
18 June 2014
N/A
Consent and Moderation Requirements (CMR) reference
0028
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
ServiceIQ
SSB Code 9068
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
3902 version 5
Page 3 of 3
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact ServiceIQ qualifications@serviceiq.org.nz if you wish to suggest changes
to the content of this unit standard.
ServiceIQ
SSB Code 9068
 New Zealand Qualifications Authority 2016