Commonwealth legislation

AD/F27/117 Amdt 1 - Engine Nacelles - Upper Brace Struts

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legislative instrument

Plain English Summary

3/10 complexity

Requires operators of specified Fokker F27 aeroplanes to inspect and, if necessary, remedy the upper engine nacelle brace struts in accordance with Fokker Service Bulletin F27/54-44 Revision 1, with defined compliance dates (serials 10102–10307 by 31 May 1989; other affected serials by 31 July 1989). The directive responds to a pre-production strut failure that could permit engine separation; Revision 1 expands which aircraft are affected because deviating/pre-production struts were found installed during manufacture. Operators pay inspection and repair costs.

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AD/F27/117 Amdt 1 - Engine Nacelles - Upper Brace Struts

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Fokker F27 Series Aeroplanes

AD/F27/117

Amdt 1

Engine Nacelles - Upper Brace Struts 9/89

Applicability: F27 S/Nos. 10102 to 10307 inclusive, 10308 to 10340 inclusive, and 10342 to 10360 inclusive.

Requirement: Action in accordance with Fokker S.B. F27/54-44 Revision 1.

Note 1: Aircraft inspected in accordance with the initial issue of SB F27/54-44 do not require any additional inspection as a result of Revision 1.

Note 2: RLD AD 88-42 Issue 2 refers.

Compliance: For aircraft S/Nos 10102 to 10307 inclusive: Prior to 31 May 1989.

For all other affected Aircraft: Prior to 31 July 1989.

Background: There has been a failure of a P/No. 1107-196-401 strut that could have resulted in engine separation. The failed strut was found to be of pre-production configuration. It is possible that the pre-production strut may have been fitted to some aircraft during incorporation of S.B. F27/54-26. Subsequent to the initial issue of SB 54-44, a deviating strut has been found on an aircraft outside the affected serial number range, and it has been established that some of these struts may have been installed during manufacture. Revision 1 expands the effectivity accordingly.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/F27/117 Amdt 1 - Engine Nacelles - Upper Brace Struts