Commonwealth legislation

AD/ENST 28/15 Amdt 2 - Tail Rotor Spindle and Drive Shaft - Inspection and Retirement

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Commonwealth

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legislative instrument

Plain English Summary

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This airworthiness directive forces owners/operators of Enstrom F‑28 and 280 helicopters to replace tail rotor spindles P/N 28‑15202 with a new P/N 28‑15202‑13 or an approved reworked spindle, fit tail‑rotor strike tabs, and carry out inspections of the spindle and drive shaft (including after any tail‑rotor strike). Replacement must occur within 10 flight hours of 17 August 1977; tabs immediately; inspections before further flight after a strike. Costs and compliance duties fall on aircraft owners/operators; the regulator enforces the AD.

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AD/ENST 28/15 Amdt 2 - Tail Rotor Spindle and Drive Shaft - Inspection and Retirement

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 28/15

Amdt 2

Tail Rotor Spindle and Drive Shaft - Inspection and Retirement

8/77

Applicability: All models F-28 and 280.

Requirement: 1. Remove tail rotor spindles P/N 28-15202 from service and replace with a new spindle P/N 28-15202-13 or a re- worked spindle which may be identified by an 8- character serial number acid etched on the outside of the spindle centre section.

2. Install tail rotor strike tabs in accordance with Enstrom Service Directive Bulletin No. 0037 Revision A or FAA AD 77-04-04 Amendment 39-2839.

3. Inspect the tail rotor spindle in accordance with the above Bulletin or FAA AD.

4. Inspect the tail rotor drive shaft in accordance with Enstrom ServiceDirective Bulletin No. 0039.

Compliance: For Para. 1 - Within 10 hours time in service after 17 August 1977.

For Para. 2 - Forthwith.

For Para. 3 and 4 - Before further flight following any tail rotor strike.

Source text

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

1 AD/ENST 28/15 Amdt 2 - Tail Rotor Spindle and Drive Shaft - Inspection and Retirement