Commonwealth legislation

AD/PL 12/8 Amdt 3 - Stub Wing Spar

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive requires detailed visual inspections of the Transavia PL‑12 stub wing main spar for corrosion and cracking, concentrating on welds, fish‑plate areas, the right‑angle stiffener and the area inboard of the main landing‑gear pylons. Inspections must be done after removal of the lower cowl and access panels and may use strong light and sight aids (Requirement). It applies to all models, at the next maintenance release after 25 April 1990 and then every 100 hours; defects must be repaired and reprotected before further flight (Compliance).

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AD/PL 12/8 Amdt 3 - Stub Wing Spar

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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 Transavia PL 12 Series Aeroplanes

AD/PL 12/8

Amdt 3

Applicability: All models.

Stub Wing Spar 7/90 DM

Requirement: Carry out detailed visual inspection of the complete stub wing main spar for corrosion and cracking paying particular attention to the areas adjacent to the fish plates welded to the rear face of the spar web at the fuselage sides, right angle stiffener, inboard of MLG pylons and all other welds in the spar web. The inspection is to be performed after removal of the lower cowl and access panels. The use of a strong light source and sight aid is recommended. Any cracks found are to be repaired, corrosion to be removed, area blended, checked within limits, repaired as required and reprotected before further flight.

Compliance: At the next scheduled inspection for issue of a Maintenance Release after 25 April 1990, and thereafter at intervals not exceeding 100 hours time in service.

Background: Amendment 3 has been issued to require further inspection of stub wing spar as a result of severe corrosion and cracking being reported in the area inboard of MLG.

Source text

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