AD/F50/58 Amdt 4 - MLG Sliding Member Out-Stop Assembly (Cth)

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

Fokker F50 (F27 Mk 50) Series Aeroplanes

AD/F50/58 Amdt 4

MLG Sliding Member Out-Stop Assembly 6/98

Applicability: All model F27 Mk 50 aircraft, all serial numbers, equipped with Dowty Aerospace MLG legs P/N 201017001, 201017002 and P/N 201020001 not incorporating Dowty Aerospace SB F50-32-27 R4.

Requirement: 1. Inspect all main landing gear legs for correct installation in accordance with Part A of Messier Dowty SB F50-32-48 R4 dated June 21, 1995.

Note: Fokker SB F50-32-025 dated September 23, 1992 also refers.

2. Inspect and measure the extension of each sliding member when the landing gear is fully extended in accordance with Part B of Messier Dowty SB F50-32-48 R4 dated June 21, 1995.

3. If while inspecting the MLG in accordance with Requirements (1) or (2) parts are found missing or damaged, action in accordance with Dowty Aerospace SB F50-32-27 R2 or SB F50-32-49, as applicable.

Note: MLG legs previously modified in accordance with Dowty Aerospace SB F50- 32-27 R2 and R3 are exempt from the inspections of Requirement 1 and 2 .

4. Modify main landing gear leg in accordance with Dowty Aerospace SB F50-32-27 R4 dated December 18, 1992.

Note: RLD AD 1996-159 (A) dated December 31, 1996, supersedes and cancels RLD AD 92-118/3 (A).

Compliance: 1. Unless previously carried out, within 30 days from 27 March 1997.

2. Unless previously carried out, within 30 days from 27 March 1997. Thereafter reinspect at intervals not exceeding 500 flight cycles until requirement 4 has been complied with.