SİVİL HAVACILIK GENEL MÜDÜRLÜĞÜ
Organisation:
SHY-145 – Workshop Cx Rating Audit Check List
Audit date:
Auditor:
3
4
145.A.20
Terms of approval
145.A.25(a)
Facility requirements
2
145.A.25(b)
Facility
requirements
1
Ref
45.A.25(c)
Facility requirements
Nr
Audit item
Works done iaw organisation’s scope of
work
Auditor guidelines
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Has the organisation ensured that facilities
are provided appropriate for all planned
work, ensuring in particular, protection from
the weather elements?
Are specialised workshops and bays
segregated as appropriate; to ensure that
environmental and work area contamination is
unlikely to occur?
For component maintenance, are component
workshops large enough to accommodate the
components on planned maintenance?
Has the organisation ensured that office
accommodation is provided for the
management of the planned work, and for
certifying staff, so that they can carry out
their tasks?
Are the working environment appropriate
and any special requirements observed?
Temperatures maintained to avoid undue
discomfort?
1. Minimisation of dust to avoid surface
contamination on aircraft/component?
2. Are all susceptible systems sealed when
required
3. Is lighting such that maintenance task can
be done properly?
4. noise level to avoid distraction? Where
applicable, noise protection equipment.
5. specific environmental conditions
observed?
Doküman No: SHGM.UED.26005653.FR.206WSM
Revizyon No – Tarihi: 00 – 00/00/0000
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Works in progress: check components are
listed in the approved Capability List
Capability list available in the workshop and
updated
Sample check for correct management of
components on-wing maintenance
All year protection from weather/dust?
Fire protection?
Area to study maintenance instructions and
complete maintenance records?
Sample check work bench for absence of
uncontrolled materials stored by maintenance
staff
Sufficient office room available to carry out
assigned tasks?
Standards of working conditions (light, noise,
temperature, dust)?
Management of grease dispensers to avoid
mixture of grease types.
Fire protection devices available/serviceable?
Availability of eye washers?
Procedures for suspension of work?
Waste process?
Is the workshop linked to the relevant
computerised information and transmission
system (maintenance data, materials
requests, etc.)
Page 1 of 7
Status
AMO Customised checks
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
Page completed 
SİVİL HAVACILIK GENEL MÜDÜRLÜĞÜ
Organisation:
SHY-145 – Workshop Cx Rating Audit Check List
Audit date:
Auditor:
Nr
Ref
Audit item
5
145.A.25(d)
Verify House-keeping standards
Auditor guidelines
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Verify workshop materials storage facilities
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Materials Storage
6
145.A.25(d)
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Tools Storage
7
145.A.25(d)
Verify workshop tools storage facilities
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Doküman No: SHGM.UED.26005653.FR.206WSM
Revizyon No – Tarihi: 00 – 00/00/0000
Metal to Metal contact avoided
Serviceable and unserviceable materials
segregation
Is every aeronautical component or material
traced and identified
Unsalvageable parts identified, segregated and
mutilated
Fluid dispensing cans and servicing units shall
be identified, maintained and secured to
prevent contamination
Only for materials to be used in the course of
maintenance
ESD protection for electrical items (wrist strips
tested before using)
Are the aircraft components and materials
stored in environments which ensure their
integrity (using racks, shelves, packing, etc.)?
Traceability materials to the certificates
Evidence of receiving inspection performed
Sample Check of quantities for correct
management of batches
Consumable materials identified and within
due date
Flammable materials stored in fire proof shelf
Availability of a list of tools stored in the
workshop;
Sample check of tools identified as expired in
the information system (location labelled, tools
identified being on calibration in the list)
Check tools out for works (location identified)
Verify that all tools locations are either with
the tool or appropriately labelled.
Sample check available tools for due date and
cross check consistency on information system
(P/N, S/N, location due date)
Page 2 of 7
Status
AMO Customised checks
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
Page completed 
SİVİL HAVACILIK GENEL MÜDÜRLÜĞÜ
Organisation:
SHY-145 – Workshop Cx Rating Audit Check List
Audit date:
Auditor:
Nr
Ref
Audit item
8
145.A.30 (e)
Work Processing
Verify competence of workshop personnel
Auditor guidelines
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145.A.45 (e)
Work Processing

Is there a common work card system to be
used?
In addition, does the organisation either
transcribe accurately the maintenance
data onto such work cards or make precise
reference to the maintenance task?
Are work cards that are computer
generated subject to safeguards against
unauthorised alteration and a back-up
electronic database which is updated within
24 hours of any entry made to the main
electronic database?
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9
145.A.30 (f)
NDT
Verify NDT processes in the workshop
Doküman No: SHGM.UED.26005653.FR.206WSM
Revizyon No – Tarihi: 00 – 00/00/0000
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Work in progress sample check:
Clear work order available
Access to applicable Maintenance data
Access and understanding of capability list
limitations
Understanding of personal authorisation
limitations (is personnel able to show the
personal authorisation on request?)
Personnel training on the specific component
(family) on which is working
Are complex maintenance tasks transcribed
onto the work cards or worksheets and
subdivided into clear stages?
Is a common work card system (ex. Workshop
report) used across a complete product line?
Is the work order mentioned on the Jobcards?
Are records of the work following a
chronological order (disassembly, cleaning,
inspection, assembly, test?)
Are bench test reports attached retained in the
work pack
Are material traceability tags attached
retained in the work pack
sign-off (group tasks, hand corrections,
personnel authorisation to sign-off tasks,
completion date, additional inspection,
supervised work, multi-skill tasks)
Is it possible for the CS staff to verify that
each step is signed-off by authorised staff (ex
stamp register available)
Dimensional information recorded
Only allowed to establish methods that deviate
from TC data when TC data expressly allows
NDT tooling available and serviceable
Personnel qualified to the appropriate NDT
level for the work done
NDT tasks clearly identified in the job
cards/work cycles/non routing works
Page 3 of 7
Status
AMO Customised checks
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
Page completed 
SİVİL HAVACILIK GENEL MÜDÜRLÜĞÜ
Organisation:
SHY-145 – Workshop Cx Rating Audit Check List
Audit date:
12
13
Verify any other specialised task in the
workshop
145.A.35 (a)
CS
Competence
11
Audit item
145.A.35 (b)(k)(l)
C.A. iaw AML
10
Ref
145.A.40 (a)
Special Tools available
Nr
145.A.30 (f)
Specialised
services
Auditor:
Auditor guidelines
Comply
Not audited
Not applicable
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a- Issue of certification authorisation.
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c- Can certifying staff produce their
certification authorisation to any
authorised person within 24 hours?
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Are the necessary tools and equipment to
perform the approved scope of work
available?
1. use of tools required by manufacturer
or alternate tools
2. Are equipment and tools permanently
available (except for equipment
infrequently used)
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Doküman No: SHGM.UED.26005653.FR.206WSM
Revizyon No – Tarihi: 00 – 00/00/0000
AMO Customised checks
yes no
Has the organisation ensured that certifying
staff have an adequate understanding of the
relevant components to be maintained
together with the associated organisation
procedures?
b- Does the organisation provide certifying
staff with a copy of their certification
authorisation in either a documented or
electronic format?
Status
Understanding of certifying staff
responsabilities
Understanding of English language
knowledge of the product to be released
knowledge of MOE procedures
Verify compliance of certification authorisation
compliance with the product released/to be
released to service
Is the CS listed in the CS list with the
appropriate privileges?
Understanding of personal certification
authorisations limitation
Understanding of organisation EASA Part 145
approval limitations
CA issued by the QM
CS aged 21 years or more
Sample check availability of special tools listed
in the CMM.
Use of alternate tools iaw 145.A.45.(d) where
CMM do not allow equivalent tools.
Equivalency of tools formally declared (when
equivalent tools are allowed by CMM).
Tools/benches locally manufactured only iaw a
procedure in the MOE ( and
Manufacturer/drawing instructions available)
Verify test benches (compliance with CMM
requirements, availability of a maintenance
schedule for servicing, measuring tools
calibrated and listed in the control register)
Are toolboxes assigned to each individual with
a list showing tools being inside?
Page 4 of 7
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
Page completed 
SİVİL HAVACILIK GENEL MÜDÜRLÜĞÜ
Organisation:
SHY-145 – Workshop Cx Rating Audit Check List
Audit date:
Auditor:
Nr
Ref
Audit item
Are the necessary materials to perform the
approved scope of work available?
Auditor guidelines

16
145.A.42 (c)
15
145.A.45 (a)
14
145.A.40 (a)
materials available
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Is a restricted range of parts to be used in
the course of undergoing work within its own
facilities fabricated by the organisation?
Are procedures and limitations identified in
the exposition?
Does the organisation hold and use
applicable current maintenance data in the
performance of maintenance?
In the case of maintenance data provided by
an operator or customer, does the
organisation hold such data when the work is
in progress?
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Is there a detailed procedure in the MOE?
Verify that fabricated parts are not for onward
sale, not to pattern, inspection stage, record
retention, part marking(iaw Part 21).
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Verify workshop local library, if any:
Is there a system in place to identify the
current revision of all applicable Maintenance
data? (ex. Availability of a list of Maintenance
data hold together with revision date)
Where applicable, are there sufficient
computers readers?
Maintenance data available in close proximity
of workshop
Sample check for correct revision status
Cross check availability of maintenance data
iaw approved capability list
Is a current copy of the MOE accessible to any
person performing or certifying works?
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17
145.A.45 (c)

Notification of inaccurate, incomplete or
ambiguous procedure to the author of the
maintenance data?
Doküman No: SHGM.UED.26005653.FR.206WSM
Revizyon No – Tarihi: 00 – 00/00/0000
Check CMM cleaning chapter for products
availability
Check CMM assembly chapter for availability of
consumable materials (sealants, o-rings, etc.)
Use of equivalent chemical materials only iaw
a procedure to establish equivalency . The use
of a different consumable material can be
considered a modification requiring DOA
approval. (ex. Use of a grease for LGD strut
different from the one required by CMM).
Management of standard parts removed and
reinstalled on the product (check CMM to
verify that any inspections requirements is
met and declared in the workshop report)

Is maintenance personnel aware of this
procedure?
Page 5 of 7
Status
AMO Customised checks
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
Page completed 
SİVİL HAVACILIK GENEL MÜDÜRLÜĞÜ
Organisation:
SHY-145 – Workshop Cx Rating Audit Check List
Audit date:
Auditor:
18
Ref
145.A.45 (d)
Nr
Audit item
Does the organisation only modify
maintenance instructions in accordance
with a procedure specified in the maintenance
organisation's exposition?
Auditor guidelines
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20
21
22
145.A.50 (d) 145.A.47 (c) 145.A.65 (b)
19
145.A.60
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Is the Occurrence reporting procedure
known to maintenance staff?
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Is there a repair procedure for damage
assessment and for modifications and
repairs using data approved by the Agency or
by an approved Part-21 design organisation,
as appropriate?
Management of hand over the continuation or
completion of maintenance tasks for reasons
of a shift or personnel changeover

Is there a procedure in the MOE (components
maintained for internal use) to issue CRS for
components on internal documents?

Doküman No: SHGM.UED.26005653.FR.206WSM
Revizyon No – Tarihi: 00 – 00/00/0000
Verify proper use of Modified maintenance
data:
Quality Manager to approve modified
maintenance instruction or delegate another
person iaw MOE procedure?
TCDS holder informed?
Only used for; more efficient but same intent,
when TCDS data is in error, for use of
alternative tooling / equipment?
note: do not apply to maintenance instructions
linked to CDCCL (airworthiness limitations to
be approved in accordance with Part-21)
Status
AMO Customised checks
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable



Verify DOA approval on any repair which is
outside the CMM allowed repairs
Does the handover ensure the effective
communication of incomplete works?
Is the handover formalised, and is there
sufficient time and location available?
Verify that CRS is signed by authorised
certifying staff
all the requirements for the issue of a CRS are
met and CRS statement comply with 145.A.50
Page 6 of 7
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
yes no
Comply
Not audited
Not applicable
Page completed 
SİVİL HAVACILIK GENEL MÜDÜRLÜĞÜ
Organisation:
SHY-145 – Workshop Cx Rating Audit Check List
Audit date:
Auditor:
23
Ref
145.A.55 (a)
Nr
Audit item
Does the organisation record all details of
maintenance work carried out. Does the
organisation retain records necessary to prove
that all requirements have been met for
issuance of the certificate of release to
service, including subcontractor's release
documents?
Auditor guidelines
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Doküman No: SHGM.UED.26005653.FR.206WSM
Revizyon No – Tarihi: 00 – 00/00/0000
Is the workshop report attached to the EASA
Form 1 for component maintenance?
Is Form 1 completed in English?
Records secure, easily retrievable,
comprehensive and legible?
Contains details of serialised components?
Computer systems backed-up at least every
24 hours?
Computer systems have security safeguards?
Subcontractor documents recorded?
Page 7 of 7
Status
AMO Customised checks
yes no
Comply
Not audited
Not applicable
Page completed 