8D3-60 AIRCRAFT MAINTENANCE MANUAL TEMPORARY REVISION TEMPORARY REVISION TR360-AMM-55 

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FILING INSTRUCTIONS:

REASON FOR ISSUE: This Temporary Revision incorporates TR360-AMM-33. Remove TR360-AMM-33 and insert this TR after Chapter 5-20-00, page 4. CD~ROM holders ofthe 803-60 Maintenance Manual should retain this Temporary Revision with their CD-ROM. 1.Adefinition 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 EASA/FAA harmonised criteria. 3. Provision for exceptional short term extension of an 

### All not exceed time is incorporated. 4.All other information inTR360-AMM-33 (section introduced as a consequence ofcompleting the system safety review required by EASA INT/POL/25/12 (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.21 J.068.
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1. General SD3-60AIRCRAFT MAINTENANCE MANUAL TEMPORARY REVISION FUEL SYSTEM AIRWORTHINESS LIMITATION ITEMS
- CHECKS

These All's identify inspection tasks related tofuel tank ignition source prevention, which must be done to maintain the design level ofsafety for the operational life ofthe airplane. These ALl's are mandatory and cannot be changed ordeleted 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 offic·ethat is responsible for the SD3 Type Certificate. MAINTPROG CHAPTER 5-25 

### 28 SUB ITEM DESCRIPTION TASK CURRENT NOT

SECT. EXCEED TIME PROGRAMME DESCRIPTION COMPONENT/SYSTEM/ENGINE FUEL SYSTEM 28-00 6 Vent pipe bonding TIS 12 Years

Jumper leads VCK 12 Years (Refer to 20-09-05, pb201) 28-00 8 Vent pipe bonding TIS 36M

Jumper leads VCK 36M (Refer to 20-09-05, pb 201) 28-10 5 Switch, Float TIS 12Years

(Refer to 20~09-05, pb201) 2840 5 Fuel probes -wiring

internal totank VCK 12 Years (Refer to 28-42-03, pb201) 28-40 6 FCGS co-axial wiring

external totank zone 230 VCK 9600 F/H zone 240/250 VCK 4800 F/H (Refer to 28-42-02, 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 term 'exceptional short-term extension' isdefined as an increase in a Fuel System All interval that may be needed to cover an uncontrollable or unexpected situation. Repeated use o'f such extensions, either onthe same aircraft oron similar aircraft inthe operators fleet, should not be used as asubstitute for good management practices.

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TEMPORARY REVISION Unless noted adjacent to the task, for all Fuel System AU's identified above, ithas been accepted bythe Primary Certification Office (EASA) that short-term extensions uptothe following maximum values may be granted without consultation with that office. Requests for extensions in excess ofthese values must be submitted with fulljustification tothe Primary Certification Office (EASA) such that approval, 

### ifgranted, can be given prior totheir use. A. Fuel System All's controlled by Flight Hours (FHl Extensions upto 10% or500 FH (whichever is lesser) may exceptionally be granted on Fuel System All intervals quoted interms offlight hours. 

## Ii. Fuel System All's controlled byCalendar Time

# eM orYears) VVherethe repeat interval is 12 months or less, extensions upto 10% or 1 month (whichever isthe lesser) may exceptionally be granted on Fuel System AU intervals quoted interms of months. VVherethe repeat interval isgreater than 12 months but less than 3years, extensions upto 2 months may exceptionally be granted. VVherethe repeat interval is3years orgreater, extensions upto 3 months may exceptionally be granted. Itisthe operators responsibility to identify appropriate procedures with their local regulatory authority for the control and development oftheir maintenance program. This paragraph inthe Fuel Airworthiness Limitation document iswritten to confirm tothe local regulatory authority that exceptional short-term extensions of Fuel System AU intervals are permissible. Approval ofsuch extensions rests with the local authority inthe same way as itdoes for any other scheduled maintenance task interval extension.

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