Airworthiness Directive · Amendment 39-15610 · International Aero Engines AG (IAE) V2500 Series Turbofan Engines
International Aero Engines AG (IAE) V2500 Series Turbofan Engines
This AD applies to 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. These engines are installed on, but not limited to, Airbus A319, A320, A321, and McDonnell Douglas MD-90 airplanes.
The FAA is adopting a new airworthiness directive (AD) for IAE V2500-A1, V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, V2533-A5, V2525-D5, and V2528-D5 turbofan engines. This AD requires removing certain No. 4 bearing oil system components from service at the next shop visit or by an end date determined by the engine model. This AD results from instances of oil loss from the No. 4 bearing compartment. We are issuing this AD to prevent heat damage to high- pressure turbine (HPT) and low-pressure turbine (LPT) critical life limited hardware such as the HPT stage 1-2 airseal. Damage to the HPT stage 1-2 airseal could cause uncontained engine failure and damage to the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done.
For V2500-A1 engines, remove the parts listed by P/N in the following Table 1 of this AD at the next shop visit after the effective date of this AD but not later than November 30, 2008. The ATA chapter reference of the IAE V2500-A1 engine manual (E-V2500-1IA) contains information on removing the parts.
| ATA chapter reference | P/N | Nomenclature |
|---|---|---|
| 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. |
For V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, and V2533-A5 engines, remove the parts listed by P/N in the following Table 2 of this AD at the next shop visit after the effective date of this AD but not later than June 30, 2011. The ATA chapter reference of the IAE V2500-A5 engine manual (E-V2500-1IA) contains information on removing the parts.
| ATA chapter reference | P/N | Nomenclature |
|---|---|---|
| 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 | 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 | 2A2354 | Metering Plug, HPT Hub, Stage 1. |
| 72-45-11 | 2A3182 | Metering Plug, HPT Hub, Stage 1. |
| 72-45-13 | 2A1352 | Seal Air, HPT Stage 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. |
(h) 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.
(i) For V2525-D5 and V2528-D5 engines, remove the parts listed by P/N in the following Table 3 of this AD at the next shop visit after the effective date of this AD but not later than June 30, 2011. The ATA chapter reference of the IAE V2500-D5 engine manual (E-V2500-3IA) contains information on removing the parts.
| ATA chapter reference | P/N | Nomenclature |
|---|---|---|
| 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. |
(j) 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.
If you have accomplished IAE Service Bulletin V2500-ENG-72-0541, Revision 4, dated March 12, 2008, you have complied with this AD.
(l) After the effective date of this AD, do not install any part that has a P/N listed in this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
