AD/RAD/86 - Caledonian Airborne Systems CPT-600/900 Emergency Locator Transmitters (Cth)

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 39.001(1) of CASR 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.

Radio Communication and Navigation Equipment AD/RAD/86 Caledonian Airborne Systems CPT-600/900 Emergency Locator Transmitters 11/2006

Applicability: Caledonian Airborne Systems CPT-600 and CPT-900 Automatic Deployable Emergency Locator Transmitter (ADELT) and Automatic Deployable/Automatic Fixed Emergency Locator Transmitter (AD/AFELT). Note 1: CPT-600 and CPT-900, ADELT and AD/AFELT systems are known to be installed on, but not limited to, the following aircraft: Manufacturer Aircraft Model Bell Helicopter Textron 212 and 214 series EADS ATR-42 Eurocopter AS 332, AS 365 N and BO 105 Sikorsky S-61 and S-76 Note 2: CPT-600 and CPT-900, ADELT and AD/AFELT systems are also known to be installed on the following military aircraft: Manufacturer Aircraft Model Eurocopter AS 352, AS 565 and AS 321 Sikorsky S-70A Requirement: Modify the affected CPT-600/-900 ADELT and AD/AFELT Systems by replacing the main case part number (P/N) BC85-051 and piston P/N BC85-052 with improved units made of stainless steel 6S80D in accordance with Caledonian Airborne Systems Service Bulletin No.CPT-600/900/SB-01 Issue 1 dated February 2006 or later EASA approved revision. Note 3: EASA AD 2006-0241 refers. Compliance: Within six months after the effective date of this Directive. This Airworthiness Directive becomes effective on 26 October 2006.