NZQA registered unit standard
28033 version 1
Page 1 of 3
Title
Identify and remove light corrosion from the surfaces of aircraft
structure
Level
3
Credits
Purpose
4
This is an entry level skills unit standard for people entering the
aeronautical engineering industry.
People credited with this unit standard are able to: identify
corrosion damage; remove light corrosion; and clean area and
equipment.
Classification
Aeronautical Engineering > Aircraft Structures
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
This standard may be assessed against on or off job in a real or simulated
aeronautical engineering environment.
Outcomes and evidence requirements
Outcome 1
Identify corrosion damage.
Evidence requirements
1.1
Signs of corrosion are identified through visual inspection in accordance with
enterprise procedures.
Range
1.2
may include but are not limited to – surface deformed, paint
blistered or flaked, powder, discolouration.
The type of corrosion is identified in accordance with enterprise procedures.
Range
ServiceIQ
SSB Code 9068
may include but is not limited to – uniform etch, pitting,
intergranular, exfoliation, filiform, galvanic, fretting, dissimilar
metal.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
1.3
28033 version 1
Page 2 of 3
The severity of corrosion damage is determined and reported in accordance
with enterprise procedures.
Outcome 2
Remove light corrosion.
Evidence requirements
2.1
Corrosion removal method is selected in accordance with enterprise
procedures.
Range
2.2
may include but is not limited to – light mechanical, manual
removal, chemical.
Materials and tools used for corrosion removal are assembled in accordance
with enterprise procedures.
Range
may include but are not limited to – personal protective equipment
(PPE) applicable to task, micro grinder, sanders, plastic media
blasting equipment, abrasive pads, abrasive papers, chemicals.
2.3
Surface is prepared and corrosion removed in accordance with enterprise
procedures.
2.4
Chemical surface conversion is carried out in accordance with enterprise
procedures.
Outcome 3
Clean area and equipment.
Evidence requirements
3.1
Surface is cleaned of all chemical residue and mechanical media in accordance
with enterprise procedures.
3.2
Equipment is cleaned in accordance with enterprise procedures.
3.3
Equipment is checked for serviceability and unserviceable items are dealt with
in accordance with enterprise procedures.
3.4
Waste material is removed and disposed of or stored in accordance with
enterprise procedures.
Range
3.5
may include but is not limited to – legislation, regulations and
codes for the storage and disposal of hazardous and toxic
materials, Material Safety Data Sheets (MSDS).
Documentation is completed in accordance with enterprise procedures.
ServiceIQ
SSB Code 9068
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
Planned review date
28033 version 1
Page 3 of 3
31 December 2018
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
19 September 2013
N/A
Consent and Moderation Requirements (CMR) reference
0028
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
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 the 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