Document ID: chunk:federal_register_of_legislation:F2006B04942:body:0
Version: federal_register_of_legislation:F2006B04942
Segment Type: other
Provision Reference: 
Character Range: 0–1382

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

 Cessna 150, F150, 152 & F152 Series Aeroplanes

AD/CESSNA 150/44 Instrument Panel Light Dimming Rheostat 3/94

Applicability:   Cessna aircraft as follows;

                 Model                             Serial Numbers
                 150F, 150G, 150H and 150J         15061533 through 15071128
                 F150F, F150G, F150H and F150J     F150-0001 through F150-0529

            Requirement: Unless previously accomplished, replace the existing instrument panel light dimming rheostat (some installations will also require the fitting of a doubler) in accordance with the Accomplishment Instructions of Cessna Single Engine Service Bulletin SEB92-33 Revision 2 dated 10 September 1993.

            Note: FAA AD 93-24-15 Amdt 39-8764 refers.

 Compliance: Prior to 3 October 1994.

 Background: The FAA has advised of a report of an inflight fire in a Cessna Model 172.

            The fire was caused by a short in the electrical wiring controlled by the instrument panel light dimming rheostat. This Directive requires the rheostat to be replaced with an improved version, which is both current-limiting and heat-protected, thus decreasing the probability of an inflight fire being caused by a defective rheostat.