Document ID: chunk:federal_register_of_legislation:F2008L02896:body:0:p3
Version: federal_register_of_legislation:F2008L02896
Segment Type: other
Provision Reference: 
Character Range: 6790–10231

1.
   72-45-13      2A3032       Seal Air, HPT Stage 1.
   79-22-49      5R8138       Tube A/O Oil-No. 4 Brg Scav Dif Case to Bif Panel.

             79-22-49    6A5367    Tube A/O Oil-No. 4 Brg Scav Dif Case to Bif Panel.
             79-22-49    5A9083    Tube A/O Oil-No. 4 Brg Discon to Discon.
             79-22-49    5A9084    Tube A/O Oil-No. 4 Brg Discon to Scav Valve.
             79-22-49    5A8573    Tube A/O Oil-Press 'T' To Pressure Transducer.

             For V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, and V2533-A5 engines with HPT stage 1 rotor assembly, P/Ns 2A9521-002 and
             2A9621-002, the stage 1 HPT hub metering plug, P/N 2A3182, does not need to be removed.

                3. V2525-D5 and V2528-D5 Engines

                For V2525-D5 and V2528-D5 engines, remove the parts listed by P/N in the following Table 3 of this AD. The ATA chapter reference of the IAE V2500-D5 engine manual (E-V2500-3IA) contains information on removing the parts.

             Table 3. - V2525-D5 and V2528-D5 Parts To Be Removed
             ATA chapter   P/N          Nomenclature
             reference
             72-42-20      2A0367-01    Tube Assy of, Weep, No. 4 Bearing Outer.
             72-42-20      2A2873-01    Tube Assy of, Weep, No. 4 Bearing Outer.
             72-42-33      2A0851       Support Assy, No. 4 Bearing Seal.
             72-42-33      2A2833       Support, No. 4 Bearing, Seal Assy.
             72-42-33      2A3537       Support, No. 4 Bearing Seal Assy.
             72-42-33      2A2834       Seal Assy, No. 4 Bearing, Front.
             72-42-33      2A2930       Seal Assy, No. 4 Bearing, Front.
             72-42-33      2A3525       Seal Assy, No. 4 Bearing, Front.
             72-42-33      2A3538       Seal Assy, No. 4 Bearing, Front.
             72-42-35      2A2257-01    Duct Assy, Cooling Air, No. 4 Bearing, Front
             72-43-20      2A2056       Seal Assy, No. 4 Bearing, Rear.
             72-43-20      2A2931       Seal Assy, No. 4 Bearing, Rear.
             72-43-20      2A3526       Seal Assy, No. 4 Bearing, Rear.
             72-43-20      2A0847       Seal Ring Holder.
             72-43-20      2A1205-01    Duct Assy, Cooling Air, No. 4 Bearing, Rear.
             72-43-20      2A3078-01    Duct Assy, Cooling Air, No. 4 Bearing, Rear.

             72-45-11    2A3182    Metering Plug, HPT Hub, Stage 1.
             72-45-11    2A2354    Metering Plug, HPT Hub, Stage 1.
             72-45-13    2A1352    Seal Air, HPT Stage 1.
             72-45-13    2A3032    Seal Air, HPT Stage 1.

             For V2525-D5 and V2528-D5 engines with HPT stage 1 rotor assembly, P/Ns 2A9521-002 and 2A9621-002, the stage 1 HPT hub metering plug, P/N 2A3182, does not need to be removed.

                4. Do not install any part that has a P/N listed in this AD.

             Previous Credit

             Previous accomplishment of IAE Service Bulletin V2500-ENG-72- 0541, Revision 4, dated March 12, 2008 satisfies the requirements of this AD.

             Note 2:  FAA AD 2008-14-15 Amdt 39-15610 dated 2 July 2008 refers.
Compliance:  For Requirement 1 - At the next shop visit after the effective date of this AD but not later than 30 November 2008.

             For Requirement 2 - At the next shop visit after the effective date of this AD but not later than 30 June 2011.

             For Requirement 3 - At