Commonwealth legislation

AD/F100/8 - RH Wing Skin at Fuel Adaptor Position

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legislative instrument

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This Airworthiness Directive requires operators of listed Fokker F100 (F28 Mk 100) aeroplanes to install internal and external doubler plates around the right-hand wing fuel-adaptor using Fokker Service Bulletin F100‑57‑008 Revision 2 to prevent fatigue cracking. Operators must complete the modification before the aircraft reach 12,000 flight cycles unless the earlier SB Revision 1 modification was already done. The operator/owner pays for and schedules the structural work; CASA enforces compliance and the requirement may cause aircraft downtime.

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AD/F100/8 - RH Wing Skin at Fuel Adaptor Position

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Fokker F100 (F28 Mk 100) Series Aeroplanes

AD/F100/8 RH Wing Skin at Fuel Adaptor Position 4/99

Applicability: F.28 Mk.0100 aircraft, serial numbers 11244 through 11286, 11289 through 11293,

11295, 11297, 11300, 11303, 11306, 11308, 11310 and 11312.

Requirement: Install internal and external doubler plates around the fuel adapter position in accordance with the Accomplishment Instructions of Fokker Service Bulletin (SB) F100-57-008 Revision 2, dated 22 September 1995. On aircraft that have already been modified in accordance with Fokker SB F100-57-008, Revision 1 (including changes as advised by the manufacturer), no further action is required.

Note: RLD BLA 1991-131/3(A) refers.

Compliance: Unless previously accomplished, before accumulating 12,000 flight cycles since new.

This Airworthiness Directive becomes effective on 22 April 1999.

Background: Fatigue tests on the F.28 Mk.0100 have shown that cracks may develop in the lower skin of the RH wing at the attachment bolt holes of the fuel adapter. This condition, if not corrected, reduces the fatigue life of the affected structure beyond acceptable limits. This AD requires a modification to prevent cracking.

Source text

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

1 AD/F100/8 - RH Wing Skin at Fuel Adaptor Position