Document ID: chunk:federal_register_of_legislation:F2006B04455:body:0
Version: federal_register_of_legislation:F2006B04455
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
    SCHEDULE OF AIRWORTHINESS DIRECTIVES

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

AD/BELL 206/140 Collective Idler Link and Collective Lever 13/98

    Applicability: All BHTC Model 206L-4 helicopters.

               Requirement: To ensure that part numbers of the collective idler link and collective lever correspond with the proper airworthiness life limitations, accomplish the following:

                     1. Check the part number (P/N) and assign the proper corresponding retirement life as per the following schedule:

Item   Part Number                                                                                                                                     Retirement Life
(a)   Collective Idler Link P/N 206-010-446-105 Serial No. A-1 through A-27 and RE-238 through RE- 270                                                 1200 hours
(b)   Collective Idler Link P/N 206-010-446-105 having serial numbers other than those in (a) above, and Collective Idler Link P/N 206-010- 446-107.   4800 hours
(c)   Collective Lever P/N 206-010-447-105 Serial A-1 through A-22                                                                                     1200 hours
(d)   Collective Lever P/N 206-010-447-105 having serial numbers other than those in (c) above, and Collective Lever P/N 206-010-447-109               4800 hours

2.    Remove from service all parts that have already reached or exceeded their airworthiness limitation and replace them with serviceable parts.

3.    Re-identify the collective idler link and collective lever that have a retirement life of 4800 hours to the new part numbers, as outlined below and in Part II of BHTC Alert Service Bulletin 206L-98-110:

Component              Old Part Number    New Part Number
Collective Lever Link   206-010-446-105   206-010-446-107FM
Collective Lever        206-010-447-105   206-010-447-109FM

               Note: Transport Canada AD CF-98-20 refers.

               Compliance: Unless already accomplished, within 100 hours time in service after 3 December 1998.

               This Airworthiness Directive becomes effective on 3 December 1998.
 COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

           Background:  It has been determined that the collective idler link and the collective lever, when manufactured from two different materials, have substantially different airworthiness lives, while still being identified with a single part number. Parts manufactured from forged material have a longer life than those of rolled plate stock. Therefore, re- identification of the affected parts and corresponding life limitation are necessary.