FILING INSTRUCTIONS:

REASON FOR ISSUE: 

# SIFu©l~ SIQ>31 Sih®~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 ofthe SD3 Sherpa Aircraft Maintenance Manual should insert this Temporary Revision atthefront oftheir microfiche foldeL 1.A definition of afuel 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 

### shortterm 

### extension of an

### All not exceed time is incorporated. 4. All other information inTRSD3S-AMM-15 (section introduced as aconsequence of completing the system safety review required by EASA INT/POU25/12 (and hence SFAR 88» is re-issued.

NOTE: Record the incorporation ofthis Temporary Revision on the yellow RECORD OF TEMPORARY REVISIONS sheet atthe front ofthe Manual. The technical content ofthis document isapproved under the authority of DOA No. EASA.21J.068.

Signed. Date


# 5-20-01 TRSD3S-AMM-36 Page 1 of3 Jun 

### 19/06

# Sih@@ SD3JS1h®wp~ 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 ofthe airplane. These All's are mandatory and cannot be changed or deleted without the approval ofthe European Aviation Safety Agency (EASA), orthe national regulatory authority office that is responsible for the SD3 Type Certificate. Strict adherence to methods, techniques and practices as referred inthe All's is required to ensure the All iscomplied with. Any use of methods, techniques or practices not contained in these All's must be approved by EASA, orthe 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 12Years

Jumper leads 

### VCK 12Years (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 12Years

(Refer to 20-09-05 &20-09-12, pb201) 28-40 7 Fuel probes

-wiring

internal to tank 

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

2. Exceptional Short-Term Extensions An exceptional short-term extension for aspecific Fuel System All interval may be made on one aircraft for a limited period oftime without jeopardising safety. The tenn 'exceptional short-term extension' isdefined as an increase in a Fuel System AU interval that may be needed tocover an uncontrollable or unexpected situation. Repeated use of such extensions, either on the same aircraft oron similar aircraft inthe operators fleet, should not be used as asubstitute for good management practices. Unless noted adjacent to the task, for all Fuel System All's identified above, it has been accepted bythe Primary Certification Office (EASA) that short-term extensions uptothe following maximum values may begranted without consultation with that office. Requests for extensions in excess ofthese values must be submitted with full justification to the Primary Certification Office (EASA) such that approval, ifgranted, can be given prior totheir use. A. Fuel System All's controlled by Flight Hours (FH) Extensions upto 

### 10°10or500 FH (whichever is lesser) may exceptionally be granted on Fuel System All intervals quoted interms offlight hours. 

# 5-20-01 TRSD3S-AMM-36 Page 2 of 3 Jun 19/06

# SIh©Jrn~

# SD31S!hl®lFp€j] MAINTENANCE MANUAL TEMPORARY REVISION B. Fuel System 

### All's controlled by Calendar Time (M or Years) Where the repeat interval is 12 months or less, extensions upto 10% or 1 month (whichever isthe lesser) may exceptionally be granted on Fuel System All intervals quoted interms of months. Where the repeat inlerval isgreater than 12 months but less than 3years, extensions upto 2 months may exceptionally be granted. Where the repeat interval is 3years or greater, extensions up to 3 months may exceptionally be granted. It isthe operators responsibility to identify appropriate procedures with his local regulatory authority for the control and development of his maintenance program. This paragraph inthe Fuel Airworthiness Limitation document iswritten 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 inthe same way as itdoes for any other scheduled maintenance task interval extension.



# 5-20-01 TRSD3S-AMM-36 Page 3of 3 Jun 19/06