Commonwealth legislation

AD/CESSNA 170/37 Amdt 1 - Wing Flap Operating System

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Commonwealth

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legislative instrument

Plain English Summary

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This airworthiness directive requires installing a specific flap follow-up cable clamp and associated hardware on certain Cessna 170/172/FR172/175 and R172K aeroplanes, using the manufacturer’s service letters and Service Kit. It applies only to the serial-number ranges listed and sets compliance deadlines based on each aeroplane’s hours-in-service to prevent possible sudden unexpected retraction of the left wing flap.

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Current sections

Direct links to the current provisions in AD/CESSNA 170/37 Amdt 1 - Wing Flap Operating System.

AD/CESSNA 170/37 Amdt 1 - Wing Flap Operating System

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Cessna 170, 172, F172, FR172 and 175 Series Aeroplanes

AD/CESSNA 170/37

Amdt 1

Wing Flap Operating System 6/81

Applicability: All models 172N with S/Nos. 17261445, 17267585 to 17272447 and FR172 with S/Nos. FR1720591 to FR1720655.

All models R172K with S/Nos. R1722000 to R1723127.

Requirement: Modify the wing flap operating system by installing a Cessna P/N 0560037-1 flap follow-up cable clamp and associated hardware in accordance with instructions in Cessna Single Engine Customer Care Service Information Letters SE79-16 and SE79- 16 (Supplement No. 1) and Cessna Service Kit S.K. 172-60A.

Note: FAA AD 80-06-03 Amendment 39-3713 and SB Reims Aviation No. 21 and Bureau Veritas Consigne De Navagabilite 81-46-IMP(A) refer.

Compliance: 1. For aeroplanes which have achieved 1000 hours time in service; unless already accomplished, within 100 hours time in service after 30 June 1981.

All other aeroplanes; before achieving 1000 hours time in service.

Background: The modification is required to prevent possible sudden unexpected retraction of the left wing flap. This amendment adds aeroplanes of Reims Manufacture to the applicability list.

Source text

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

1 AD/CESSNA 170/37 Amdt 1 - Wing Flap Operating System