Commonwealth legislation

AD/A109/23 - Tail Boom and Vertical Fin Modification

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires owners/operators of Agusta A109A, A109AII and A109C helicopters (serials up to 7670, with specific serial exclusions) to carry out a tail boom/vertical fin modification and inspections in accordance with Agusta Bollettino Technico 109-96. The directive responds to discovered cracking in the vertical fin attachment area: the initial action must be done within 100 flight hours after 21 July 1994 or by 30 June 1995, and inspections are then required every 300 flight hours.

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AD/A109/23 - Tail Boom and Vertical Fin Modification

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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 Agusta A109 Series Helicopters

AD/A109/23 Tail Boom and Vertical Fin Modification 8/94

Applicability: All models A109A, A109AII and A109C with serial numbers up to and including 7670, except for serial numbers 7630, 7633, 7645, 7651, 7654, 7663, and 7665 to

Requirement: Action in accordance with Agusta Bollettino Technico 109-96.

Note: RAI AD 94-098 refers.

Compliance: Part I - Within 100 hours time in service after 21 July 1994 or prior to 30 June 1995, whichever occurs first.

Part II - At each 300 hour inspection after accomplishment of Part I.

Background: Some cracking of structural parts has been found in the vertical fin attachment area of the tail boom. This Directive provides for ready access to the area, and the inspection requirements.

Source text

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