AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

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

AD/CESSNA 170/71 Fuel Line/Map Light Switch 1/2002

Applicability: All Cessna 172 model aeroplanes with the following serial numbers: Model Serial Number

172N 17267585 through 17270049; 17270051 through 17274009;

17261445, 17261578, and 17270050

172P 17274010 through 17276654

172RG 172RG0001 through 172RG1191; and 691

F172N F17201515 through F17202039

F172P F17202040 through F17202254

FR172J FR17200531 through 17200590

FR172K FR17200591 through 17200675

R172K R1722000 through R1723454; and 680

Requirement: 1. Inspect the doorpost map light switch insulator assembly (part number 0511080- 1) to verify it is installed and (if installed) not damaged, in accordance with Cessna Service Bulletin SEB00-1 dated 17 January 2000.

2.        If the switch cover insulator is not installed, or is damaged in any way, install a new insulator part number 0511080-1.

3.        If the fuel line is damaged in any way, install a new fuel line.

Note: FAA AD 2001-23-03 refers.

Compliance:  For Requirement 1 - Within the next 100 hours time in service from the effective date of this Directive.

For Requirement 2 - Before further flight following requirement 1 inspection. Fro Requirement 3 - Before further flight following requirement 1 inspection.

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

AD/CESSNA 170/71 (continued)

This Airworthiness Directive becomes effective on 24 January 2002

Background:   There have been several reports of incidents of electrical shorts and chaffing of the fuel line on Cessna Model 172N aeroplanes. This Directive is to detect and correct any chaffing that may occur between the map light and the fuel line.

This Airworthiness Directive supersedes AD/CESSNA 170/36. The FAA found that inspections conducted under that AD did not cover all affected aircraft and that aircraft deteriorated after that inspection.

Eugene Paul Holzapfel

Delegate of the Civil Aviation Safety Authority 27 November 2001

The above AD is notified in the Commonwealth of Australia Gazette on 9 January 2001.