Commonwealth legislation

AD/F50/75 - Aft Fuselage Skin Joint

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Commonwealth

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legislative instrument

Plain English Summary

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Requires a mandatory inspection of the aft fuselage skin joint on all Fokker F50 (F27 Mk 50) aeroplanes, to be carried out in accordance with Fokker Service Bulletin F50‑53‑053 before 10,000 flight cycles or within six months after 22 May 1997 (whichever is later). It affects operators and maintenance organisations because fatigue cracking was found on the left‑hand fuselage; the inspection detects cracks and, where found, triggers corrective repairs to maintain airworthiness.

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AD/F50/75 - Aft Fuselage Skin Joint

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Fokker F50 (F27 Mk 50) Series Aeroplanes

AD/F50/75 Aft Fuselage Skin Joint 6/97

Applicability: All Serial numbers F27 Mk 050.

Requirement: Inspect in accordance with Fokker Service Bulletin F50-53-053.

Note: Netherlands AD 1997-022(A) refers.

Compliance: Before accumulating 10 000 flight cycles from new, or within 6 months after 22 May 1997, whichever occurs last.

This Airworthiness Directive becomes effective on 22 May 1997.

Background: Fatigue cracking has been discovered on the LH side of the fuselage between STA 15375 and STA 16275 following investigation of pressurisation problems. Such cracking could lead to an unsafe condition, and thus requires an inspection to detect any problem, and to take any necessary corrective action.

Source text

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