AD/BN-2/82 - Elevator Final Drive Rod (Cth)

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

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 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.

Pilatus Britten-Norman BN-2 Series Aeroplanes

AD/BN-2/82 Elevator Final Drive Rod 7/2004 DM

Applicability: All Model BN2, BN2A, BN2B, BN2T, BN2T-4R, and BN2T-4S series Islander aircraft.

Requirement: Inspect the internal surface of the elevator system final drive control rod in accordance with B-N Group Service Bulletin SB 303 Issue 1.

Note: UK CAA Emergency AD G-2004-0011 refers.

Compliance: Within 50 hours time in service or one month after 2 June 2004, whichever occurs first.

This Airworthiness Directive becomes effective on 2 June 2004.

Background: The manufacturer has identified several cases of corroded elevator final drive control rods. If not corrected, corrosion of the internal surface could result in failure or collapse of the rod, resulting in loss of control or jamming of the elevator system.

David Villiers Delegate of the Civil Aviation Safety Authority 26 May 2004