Commonwealth legislation

AD/F50/48 - RH Nacelle Aft Cone Fairing Fork-End Assemblies

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Commonwealth

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legislative instrument

Plain English Summary

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This AD applies to nine specified Fokker F50 (F27 Mk 50) aeroplanes and requires operators to replace the right‑hand nacelle aft‑cone fairing fork‑end fittings with improved units, following the technical requirements of RLD AD 90‑037.

Compliance is mandatory before each affected aeroplane exceeds 6,000 flight cycles; owners/operators bear the cost, scheduling, and downtime, with implementation details referenced to the service bulletin.

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AD/F50/48 - RH Nacelle Aft Cone Fairing Fork-End Assemblies

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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/F50/48 RH Nacelle Aft Cone Fairing Fork-End Assemblies 10/91

Applicability: Serial numbers 20150, 20156, 20161, 20164, 20166, 20167, 20170, 20174 and 20175. Requirement: Action in accordance with the Technical Requirements of RLD AD 90-037, dated

12 April 1990.

Note: Fokker Service Bulletin F50-54-007, dated 28 March 1990 refers.

Compliance: Prior to exceeding 6000 flight cycles.

Background: The fork-end fittings that attach the RH nacelle aft cone fairing to the nacelle on aircraft equipped with an APU, have been found to have insufficient fatigue lives. This AD requires replacement of the fork-end fittings, with improved units.

Source text

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