AD/BELL 206/73 Amdt 7 - Main Rotor Hub Pillow Block (Cth)

COMMONWEALTH OF AUSTRALIA (Civil Aviation 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 revokes Airworthiness Directive (AD) AD/BELL 206/73 Amdt 6 and issues the following 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.

Bell Helicopter Textron Canada (BHTC) and Agusta Bell 206 Series Helicopters

AD/BELL 206/73 Amdt 7

Main Rotor Hub Pillow Block 13/2002

Applicability: Models 206A, 206BJRII, 206BJRIII, 206B-1, 206L, 206L-1 and 206L-3. All AB206A and AB206B up to S/N 8737.

Requirement: Action in accordance with Bell Helicopter ASB 206-97-90 or ASB 206L-97-108 or Agusta Bolletino Technico 206-227, depending on model.

Note: The requirement document specifies repetitive torque checks after installation of the pillow block hardware.

Compliance: Unless already accomplished, as specified in the requirement document for Bell models. Initially, inspect Agusta Bell models before 25 hours time in service after 27 April 1995.

This Amendment becomes effective on 26 December 2002.

Background: The manufacturer introduced improved retention hardware in order to resolve the loss of pillow block clamp bolt/nut preload.