Document ID: chunk:federal_register_of_legislation:F2006B02538:body:0:p1
Version: federal_register_of_legislation:F2006B02538
Segment Type: other
Provision Reference: 
Character Range: 20–4039

AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/AT 800/2 Amdt 3 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.

 Airtractor 800 Series Aeroplanes

 AD/AT 800/2
 Amdt 4

                                Airframe Life Limits 8/2001 DM

 Applicability: All models AT-802 and AT-802A aeroplanes.

 Requirement: Retire from service the airframe components listed in the Retirement Schedule below.

                      RETIREMENT SCHEDULE
         Component                                                                                                                  Part No.   Aircraft S/N         Retirement Life (Flight Hours)
Wing Attach Block on Lower Cap                                                                                                      20602-1    All                 6500 (See Note 1)
Wing Attach Block on Lower Cap                                                                                                      20602-2    All                 6500 (See Note 1)
Plate Assembly – Fin Front Spar Attach                                                                                              30511-1    0001 thru 0041      4000 (See Note 2)
 0042 and up                                                                                                                          20000
Spar Assembly – Fin Rear                                                                                                            30505-1    0001 thru 0041      4000 (See Note 2)
 0042 and up                                                                                                                          20000
Spring - Main Landing Gear Leg (including the forward and aft main gear clamp block bolts and the inboard main gear large bolt).    40091-2    All                1000 hours or 2500 landings, whichever occurs first.
Spring - Main Landing Gear Leg (including the forward and aft main gear clamp block bolts and the inboard main gear large bolt).    40091-3    All                3000 hours or 8000 landings, whichever occurs first.
Spring – Tail Landing Gear                                                                                                          40092-5    All                2500 hours or 7000 landings, whichever occurs first.
Spring – Tail Landing Gear                                                                                                          40092-6    All                3000 hours or 8000 landings, whichever occurs first.

 Where the total number of landings during a period of service has not been recorded, three landings per one hour time in service must be assumed.

            Compliance: Retire prior to exceeding the applicable time in service listed in the Retirement Schedule.

            Note 1: Splice block lives may be extended to 10000 hours on incorporation of Snow SL # 185 revised issue dated 9/3/99.

 Airtractor 800 Series Aeroplanes

 AD/AT 800/2 Amdt 4 (Continued)

            Note 2: Fin spar and attach plate lives may be extended to 20000 hours on incorporation of Snow SL # 187.

            Note 3: The Type Certificate Data Sheet states that the lives are listed in the Maintenance Manual; however they are in fact listed in the Owners Manual.

            This Amendment becomes effective on 27 June 2001.

            Background: Airframe component life limitations determined by the manufacturer have been published in