Commonwealth legislation

AD/A109/19 Amdt 2 - Tail Rotor Hub

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Commonwealth

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legislative instrument

Plain English Summary

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This AD requires affected Agusta A109C helicopters fitted with tail rotor fork assemblies P/N 109-8131-05-109 or -113 (on Tail rotor Assy P/N 1009-8131-02-115) to undergo inspections per Bollettino Technico Telegrafico No. 109-8 Rev. A until they are modified per Bollettino Technico No. 109-100.

The rule, issued by CASA to address flange cracking, makes the modification a terminating action and sets a completion deadline (31 March 1997), placing compliance costs and scheduling on owners/operators.

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AD/A109/19 Amdt 2 - Tail Rotor Hub

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Agusta A109 Series Helicopters

AD/A109/19

Amdt 2

Tail Rotor Hub 9/95

Applicability: All A109C helicopters equipped with Fork Assy P/N 109-8131-05-109 and -113 installed on Tail rotor Assy P/N 1009-8131-02-115.

Requirement: 1. Inspect in accordance with Bollettino Technico Telegrafico No. 109-8 Rev. A, and

Modify in accordance with Bollettino Technico No. 109-100.

Note: RAI AD 95-101 refers.

Compliance: 1. In accordance with the Requirement Document until modified, and

Prior to 31 March 1997.

For Requirement 1 the effective date was 25 January 1992. This amendment is effective 17 August 1995.

Background: The initial issue of this Directive was to address cracking of the flange of the tail rotor grip. Amendment 1 extended the inspection to the -113 part number grip.

Amendment 2 provides terminating action through modification.

Source text

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

1 AD/A109/19 Amdt 2 - Tail Rotor Hub