Federal Register of Legislation
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES
Fokker F28 Series Aeroplanes
AD/F28/75 Fuselage Skin Lap Joint at Stringer 17/58 9/94
Applicability: F28 aircraft (except Mark 0100), all serial numbers.
Requirement: Repair the fuselage skin lap joint between stringers 16 and 17 (58 and 59) in accordance with Fokker Service Bulletin (SB) F28/53-121 Revision 1.
Note: RLD AD 91-022 refers.
Compliance: 1. For aircraft modified in accordance with Fokker SB F28/21-16, repair before 32000 flights or before 15 February 1995, whichever occurs last.
2. For aircraft not modified in accordance with Fokker SB F28/21-16, repair before 48000 flights or before 15 February 1995, whichever occurs last.
Note: This repair eliminates the need for further inspections in accordance with the F28 Structural Integrity Program, Part 1, item 53-30-08 (AD/F28/45 refers).
Background: A Fokker evaluation has shown that current NDT methods are not effective at detecting small cracks in non-bonded dimpled riveted skin lap joints, such as the joint at Stringer 17/58. Therefore, as the cracks cannot reliably be detected, the RLD has determined that the Stringer 17/58 lap joint should be permanently repaired to avoid the possibility of joint failure and subsequent aircraft depressurisation.
We try to embed the page this law was scraped from. If the site blocks framing, you still get the link and a local excerpt.
Last checked with source on —
Checking whether the official page can be embedded…
Plain-English simplify of this law: a short summary, key points, and both sides of the argument. Generated on first view via Replicate, then cached. Vote on what helps your study.
No study brief is cached for this law yet. Sign up to generate a plain-English brief.
Sign up to generate