AD/V2500/5 - No. 4 Bearing Oil System Components (Cth)

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 39.001(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.

International Aero Engines AG V2500 series AD/V2500/5 No. 4 Bearing Oil System Components 9/2008

Applicability: International Aero Engines AG (IAE): IAE V2500-A1, V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, V2533-A5, V2525-D5, and V2528-D5 turbofan engines with a part listed by part number (P/N) in this AD installed.

Note 1: These engines are installed on, but not limited to, Airbus A319, A320, A321, and McDonnell Douglas MD-90 aeroplanes. Requirement: 1. V2500-A1 Engines:

For V2500-A1 engines, remove the parts listed by P/N in the following Table 1 of this AD. The ATA chapter reference of the IAE V2500-A1 engine manual (E-V2500- 1IA) contains information on removing the parts.

Table 1. - V2500-A1 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. 72-42-20 2A0830-01 Tube, Scavenge, No. 4 Bearing Assy. 72-42-20 2A1949-01 Tube, Scavenge, No. 4 Bearing Assy. 72-42-20 2A2028-01 Tube, Scavenge, No. 4 Bearing Assy. 72-42-20 2A0830-001 Tube, Scavenge, No. 4 Bearing Assy. 72-42-20 2A2274-01 Tube, Scavenge, No. 4 Bearing Assy. 72-42-33 2A0853 Seal Assy, No. 4 Bearing, Front. 72-42-33 2A2055 Seal Assy, No. 4 Bearing, Front. 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. 72-42-33 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. 72-42-35 2A0892-01 Duct Assy, Cooling Air, 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 2A0891-01 Duct Assy, Cooling Air, No. 4 Bearing, Rear. 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 2A0594 Metering Plug, HPT Hub, Stage 1. 72-45-11 2A1040 Metering Plug, HPT Hub, Stage 1. 72-45-11 2A2181 Metering Plug, HPT Hub, Stage 1. 72-45-13 2A0884 Seal Air, HPT Stage 1. 72-45-13 2A1203 Seal Air, HPT Stage 1. 72-45-13 2A0884-001 Seal Air, HPT Stage 1. 79-22-49 5R8111 Tube A/O Oil-No. 4 Brg Scav Dif Case to Bif Panel. 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. 79-23-51 1648MK2 Scavenge Valve.