FILING INSTRUCTIONS:

REASON FOR ISSUE:

SIFu©l~ SIQ>31Sih®~IP@]

MAINTENANCE MANUAL

TEMPORARY REVISION

TEMPORARY REVISION TRSD3S-AMM-36

This Temporary Revision incorporates TRSD3S-AMM-1S.

Remove TRSD3S-AMM-15 and insert this TR after Chapter

5-00-02, page 4.

Microfiche holders of the SD3 Sherpa Aircraft Maintenance Manual

should insert this Temporary Revision at the front oftheir microfiche

foldeL

1. A definition of a fuel tank system All is incorporated.

2. Additional maintenance tasks have been identified as

airworthiness limitation items associated with the fuel tank

system installation when assessed against the EASAIFAA

harmonised criteria.

3. Provision for exceptional short term extension of an All not

exceed time is incorporated.

4. All other information in TRSD3S-AMM-15 (section introduced as

a consequence of completing the system safety review required

by EASA INT/POU25/12 (and hence SFAR 88» is re-issued.

NOTE: Record the incorporation of this Temporary Revision on the yellow RECORD OF

TEMPORARY REVISIONS sheet at the front of the Manual.

The technical content of this document is approved under the authority of DOA No. EASA.21J.068.

Signed.

Date

5-20-01 TRSD3S-AMM-36

Page 1 of 3

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MAINTENANCE MANUAL

TEMPORARY REVISION

FUEL SYSTEM AIRWORTHINESS L1MITATIQN ITEMS - CHECKS

1. General

These All's identify inspection tasks related to fuel tank ignition source prevention, which must

be done to maintain the design level of safety for the operational life of the airplane. These All's

are mandatory and cannot be changed or deleted without the approval of the European Aviation

Safety Agency (EASA), or the national regulatory authority office that is responsible for the SD3

Type Certificate.

Strict adherence to methods, techniques and practices as referred in the All's is required to

ensure the All is complied with. Any use of methods, techniques or practices not contained in

these All's must be approved by EASA, or the national regulatory authority office that is

responsible for the SD3 Type Certificate.

MAlNT.PROG. SUB

CHAPTER SECT. ITEM DESCR1PTION TASK

CURRENT NOT

EXCEED TIME

5-25

28

PROGRAMME DESCRIPTION COMPONENT/SYSTEM/ENGINE

FUEL SYSTEM

28-00 4 Vent pipe bonding TIS 12 Years

Jumper leads VCK 12 Years

(Refer to 20-09-05 & 20-09-12, pb201)

28-00 6 Vent pipe bonding TIS 36M

Jumper leads VCK 36M

(Refer to 20-09-05 & 20-09-12, pb 201)

28-10 7 Switch, Float TIS 12 Years

(Refer to 20-09-05 & 20-09-12, pb201)

28-40 7 Fuel probes - wiring

internal to tank VCK 12 Years

(Refer to 28-42-03 & 20-09-12, pb201)

2. Exceptional Short-Term Extensions

An exceptional short-term extension for a specific Fuel System All interval may be made on one

aircraft for a limited period of time without jeopardising safety.

The tenn 'exceptional short-term extension' is defined as an increase in a Fuel System AU

interval that may be needed to cover an uncontrollable or unexpected situation. Repeated use of

such extensions, either on the same aircraft or on similar aircraft in the operators fleet, should not

be used as a substitute for good management practices.

Unless noted adjacent to the task, for all Fuel System All's identified above, it has been

accepted by the Primary Certification Office (EASA) that short-term extensions up to the following

maximum values may be granted without consultation with that office. Requests for extensions in

excess of these values must be submitted with full justification to the Primary Certification Office

(EASA) such that approval, if granted, can be given prior to their use.

A. Fuel System All's controlled by Flight Hours (FH)

Extensions up to 10°10 or 500 FH (whichever is lesser) may exceptionally be granted on Fuel

System All intervals quoted in terms of flight hours.

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B. Fuel System All's controlled by Calendar Time (M or Years)

Where the repeat interval is 12 months or less, extensions up to 10% or 1 month (whichever

is the lesser) may exceptionally be granted on Fuel System All intervals quoted in terms of

months.

Where the repeat inlerval is greater than 12 months but less than 3 years, extensions up to 2

months may exceptionally be granted.

Where the repeat interval is 3 years or greater, extensions up to 3 months may exceptionally

be granted.

It is the operators responsibility to identify appropriate procedures with his local regulatory

authority for the control and development of his maintenance program. This paragraph in the

Fuel Airworthiness Limitation document is written to confirm to the local regulatory authority

that exceptional short-term extensions of Fuel System All intervals are permissible. Approval

of such extensions rests with the local authority in the same way as it does for any other

scheduled maintenance task interval extension.

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Jun 19/06