Commonwealth legislation

AD/F28/64 - Cold-Bonded Lap Joint Rivets

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Commonwealth

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legislative instrument

Plain English Summary

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This airworthiness directive requires operators of specific Fokker F28 aeroplanes (listed serial numbers) to carry out the maintenance actions in RLD AD 90-126 — primarily replacing identified cold-bonded lap-joint rivets with protruding‑head rivets — to prevent fatigue cracking caused by disbonded lap joints. The directive applies to Australian-registered aircraft from an effectivity date of 16 May 1991.

It affects aircraft operators and maintenance organisations, who bear inspection, replacement and downtime costs; compliance is by following the referenced technical document rather than reproducing procedures in the directive.

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AD/F28/64 - Cold-Bonded Lap Joint Rivets

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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 F28 Series Aeroplanes

AD/F28/64 Cold-Bonded Lap Joint Rivets 5/91

Applicability: Model F28 with serial numbers 11003 through 11013, and 11991 through 11992. Requirement: Action in accordance with the technical requirements of RLD AD 90-126.

Note: Fokker SB F28/53-109 refers.

Compliance: As specified in the Requirement document but with a revised effectivity date of 16 May 1991 for Australian registered aircraft.

Background: Disbonding of cold-bonded longitudinal fuselage lap joints has been detected on several aircraft. Prolonged operation with large areas of disbonded lapjoints will result in fatigue cracking of rivet holes. To ensure sufficient fatigue life, identified critical rivets are replaced by protruding head type rivets.

Source text

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