Commonwealth legislation

AD/YA-1/8 Wing Structural Fatigue Limitation

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Airworthiness Directive requires operators to retire wings on specified Yeoman Aircraft YA-1 series aeroplanes once those wings exceed specified hours-in-service, with the retirement to be completed within 90 days of the AD’s commencement. It affects owners/operators of YA-1s that meet the AD’s serial-number, weight and hours criteria and therefore imposes the direct cost and operational consequence of removing or replacing wings. The AD is re-made under Part 39 because an example returned to the Australian register and the prior AD had lapsed.

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Current sections

Direct links to the current provisions in AD/YA-1/8 Wing Structural Fatigue Limitation.

Yeoman Aircraft YA-1 Series Aeroplanes

AD/YA-1/8	Wing Structural Fatigue Limitation	8/2022

Applicability:	All models of Yeoman Aircraft YA-1 series aircraft:a. with any of serial numbers 101 to 106 inclusive, certificated to a maximum agricultural gross weight of 3250 lbs and with wings exceeding 6500 hours’ time in service.b. with any of serial numbers 108 and subsequent certificated to a maximum agricultural gross weight of 3530 lbs and with wings exceeding 5500 hours’ time in service.
Requirement:	Retire wings from service.Note: These life limitations assume that the maximum agricultural gross weight is not exceeded. Operators are warned that overweight agricultural operations will have a marked adverse effect upon the fatigue life of the structure.
Compliance:	Within 90 days after the commencement date of this AD, unless previously accomplished.
	This AD commences on 29 April 2022.
Background:	This AD is being re-made under Part 39 of the Civil Aviation Safety Regulations 1998 because an example of the aircraft type, for which Australia is the State of Design, has returned to the Australian aircraft register and the AD had previously lapsed due to the Legislation Act 2003.

Text Description automatically generated

David Punshon
Delegate of the Civil Aviation Safety Authority

14 April 2022

AD/YA-1/8

Wing Structural Fatigue Limitation

8/2022

Source text

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

Yeoman Aircraft YA-1 Series Aeroplanes Yeoman Aircraft YA-1 Series Aeroplanes

Yeoman Aircraft YA-1 Series Aeroplanes

AD/YA-1/8	Wing Structural Fatigue Limitation	8/2022

Applicability:	All models of Yeoman Aircraft YA-1 series aircraft:a. with any of serial numbers 101 to 106 inclusive, certificated to a maximum agricultural gross weight of 3250 lbs and with wings exceeding 6500 hours’ time in service.b. with any of serial numbers 108 and subsequent certificated to a maximum agricultural gross weight of 3530 lbs and with wings exceeding 5500 hours’ time in service.
Requirement:	Retire wings from service.Note: These life limitations assume that the maximum agricultural gross weight is not exceeded. Operators are warned that overweight agricultural operations will have a marked adverse effect upon the fatigue life of the structure.
Compliance:	Within 90 days after the commencement date of this AD, unless previously accomplished.
	This AD commences on 29 April 2022.
Background:	This AD is being re-made under Part 39 of the Civil Aviation Safety Regulations 1998 because an example of the aircraft type, for which Australia is the State of Design, has returned to the Australian aircraft register and the AD had previously lapsed due to the Legislation Act 2003.

AD/YA-1/8 Wing Structural Fatigue Limitation

Plain English Summary

Deep dive

Current sections

Yeoman Aircraft YA-1 Series Aeroplanes

Yeoman Aircraft YA-1 Series Aeroplanes

AD/YA-1/8

AD/YA-1/8

Wing Structural Fatigue Limitation

Wing Structural Fatigue Limitation

8/2022

8/2022

Source text

Yeoman Aircraft YA-1 Series Aeroplanes Yeoman Aircraft YA-1 Series Aeroplanes

Yeoman Aircraft YA-1 Series Aeroplanes

AD/YA-1/8 AD/YA-1/8

AD/YA-1/8

Wing Structural Fatigue Limitation Wing Structural Fatigue Limitation

Wing Structural Fatigue Limitation

8/2022 8/2022

8/2022