Commonwealth legislation

AD/AC/82 - Engine Isolator Assembly- Inspection and/or Replacement

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

What it does: Requires inspection and, if necessary, replacement of engine isolator assemblies on specified Twin Commander models and serial-number ranges, carried out to Gulfstream Aerospace Service Bulletin No. 201 within 10 hours' time in service after 9 July 1984.

Who it affects and why it matters: Aircraft owners/operators of the listed aeroplanes must arrange and pay for the work. The directive responds to a reported Barry Wright manufacturing defect that can prevent proper bolt preload and risk thru-bolt fatigue and fracture.

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Current sections

Direct links to the current provisions in AD/AC/82 - Engine Isolator Assembly- Inspection and/or Replacement.

AD/AC/82 - Engine Isolator Assembly- Inspection and/or Replacement

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) Series Aeroplanes

AD/AC/82 Engine Isolator Assembly- Inspection

and/or Replacement

8/84

Applicability: 1. Models 690 and 690A, with S/Nos. 11001 to 11284 which have had engine isolator assemblies replaced after 28 July 1975.

Model 690A with S/Nos. 11285 to 11344, Model 690B with S/Nos. 11350 to 11566, Model 690C with S/Nos. 11600 to 11732, Model 690D with S/Nos. 15001 to 15033 and 15037, Model 695 with S/Nos. 95000 to 95084 & Model 695A with S/Nos. 96001 to 96061, 96063 to 96072, 96075, 96078, 96085 and 96088.

Requirement: Gulfstream Aerospace S.B. No. 201.

Compliance: Within 10 hours’ time in service after 9 July 1984, as detailed in Requirement Document.

Background: Some Barry Wright Corp. engine isolator assemblies have a manufacturing defect which could prevent proper bolt preload and result in premature fatigue fracture of the isolator assembly thru-bolt.

Source text

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

1 AD/AC/82 - Engine Isolator Assembly- Inspection and/or Replacement