Commonwealth legislation

AD/ENST 28/14 Amdt 1 - Upper Swashplate Bearing - Inspection and Lubrication

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Jurisdiction

Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive requires owners/operators of Enstrom F‑28A/C/280 series helicopters manufactured before January 1981 to inspect and lubricate the upper swashplate bearing per Enstrom Service Directive Bulletin No. 0035 (Rev A). An initial inspection is required within 10 hours time‑in‑service from 22 July 1994 and then every 100 hours until the manufacturer’s Service Information Letter No. 0110 Rev B is incorporated — that incorporation acts as the terminating modification that ends the recurring inspections.

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AD/ENST 28/14 Amdt 1 - Upper Swashplate Bearing - Inspection and Lubrication

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Enstrom F-28 Series Helicopters

AD/ENST 28/14

Amdt 1

Upper Swashplate Bearing - Inspection and Lubrication

10/94

Applicability: All model F-28A, F-28C, F-28C-2, 280 and 280-C helicopters manufactured prior to January 1981.

Requirement: Action in accordance with Enstrom Service Directive Bulletin No 0035 Revision A until requirements of Enstrom Service Information Letter (SIL) No 0110 Revision B have been incorporated.

Note: FAA AD 76-06-11 Amdt 39-2560 refers to Enstrom SB No 0035.

Compliance: Unless previously inspected in accordance with Enstrom Service Directive Bulletin No 0035 or 0035 Revision A inspect within 10 hours time in service from 22 July 1994. Thereafter, reinspect at intervals not exceeding 100 hours time in service until Enstrom SIL No 0110 Rev B has been incorporated.

Background: The manufacturer has introduce a modification that allows better servicing of the swashplate bearings. This amendment raised to provide terminating action for this Directive.

Source text

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

1 AD/ENST 28/14 Amdt 1 - Upper Swashplate Bearing - Inspection and Lubrication