SCHEDULE OF AIRWORTHINESS DIRECTIVES
Cessna 170 · Service Bulletins
Overview
This document is a Schedule of Airworthiness Directives issued by the Civil Aviation Safety Authority of Australia, specifically addressing the wing flap operating system for various Cessna aircraft models, including the Cessna 170. It outlines the requirements for modifications necessary to ensure the safety and airworthiness of the aircraft. The directive is aimed at operators and maintenance personnel responsible for compliance with airworthiness standards. Key information includes specific serial numbers of affected aircraft and compliance timelines for modifications to prevent potential safety hazards related to the wing flap system.
- The directive applies to Cessna 170 and other models including Cessna 172 and R172K.
- Modification involves installing part number 0560037-1 flap follow-up cable clamp.
- Compliance is required within 100 hours for aircraft with 1000 hours of service after June 30, 1981.
- All other aircraft must comply before reaching 1000 hours of service.
- The modification aims to prevent unexpected retraction of the left wing flap.
Document
Source
Originally published by services.casa.gov.au. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Service Bulletins
- Year
- 1981
- Pages
- 1
- File size
- 11 KB
- Publisher
- services.casa.gov.au
Common. One of the most common aircraft types we track.
Most owners only have the POH. Here's the essential set for the Cessna 170.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
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In this document
Applicability
The directive applies to all models of the Cessna 172N with specific serial numbers ranging from 17261445 to 17272447, as well as FR172 models with serial numbers FR1720591 to FR1720655. It also includes R172K models with serial numbers R1722000 to R1723127.
Requirement
Operators are required to modify the wing flap operating system by installing a specific Cessna part number 0560037-1 flap follow-up cable clamp along with associated hardware. This modification must be performed in accordance with detailed instructions provided in Cessna's service information letters and service kit.
Compliance
Compliance with the directive is mandatory for aircraft that have reached 1000 hours of service, which must be completed within 100 hours after June 30, 1981, unless already accomplished. For all other aircraft, the modification must be completed before reaching 1000 hours of service.
Background
The modification is necessary to prevent the sudden and unexpected retraction of the left wing flap, which poses a safety risk. This amendment also includes aircraft manufactured by Reims.
Safety notes
- Failure to comply with the directive may result in safety hazards related to wing flap operation.
Full document text
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES 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. 2. 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.
What's in the Cessna 170 TCDS
A Type Certificate Data Sheet (TCDS) is the FAA's record of what an aircraft type was approved as. It is the source of truth for weights, seating, fuel and the rules the design was certified against. Expand any line to see what it means.
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