Airworthiness directives › 2012-09-09
AD 2012-09-09 Airworthiness Directives; International Aero Engines AG Turbofan Engines
Applicability*9
This AD applies to: (1) All International Aero Engines AG (IAE) V2500-A1 turbofan engines; and (2) All IAE V2525-D5 and V2528-D5 turbofan engines; and (3) IAE V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, and V2533-A5 turbofan engines with serial numbers (S/Ns) up to and including V13181, and with S/Ns from V15000 up to and including V15245.
Compliance
For IAE V2500-A1, V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, and V2533-A5 turbofan engines with S/Ns in “Group A” in paragraph 1.A. in IAE Non-Modification Service Bulletin (NMSB) No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, perform an initial USI of the HPC stage 3 to 8 drum before accumulating 5,000 cycles-since-new (CSN) or within 500 cycles from the effective date of this AD, whichever occurs later, as follows: (1) For IAE V2500-A1 turbofan engines: (i) For on-wing inspections of the outer diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections E, G(1) through G(5), I, and J. (ii) For on-wing inspections of the inner diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections L, N(1) through N(5), P(1), and Q. (iii) For shop inspections of the outer diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections AU, AW(1) through AW(5), AY, and AZ. (iv) For shop inspections of the inner diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections BB, BD(1) through BD(5), BF(1), and BG. (v) Any liner loss which results in lifting of the USI probe from the liner will need to be repaired in order to perform an acceptable inspection. Liner loss found under the intended path of the USI probe must be smaller than the head of the probe. (2) For V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, and V2533-A5 turbofan engines: (i) For on-wing inspections of the outer diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections Z, AB(1) through AB(5), AD, and AE. (ii) For on-wing inspections of the inner diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections AG, AI(1) through AI(5), AK(1), and AL. (iii) For shop inspections of the outer diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections BO, BQ(1) through BQ(5), BS, and BT. (iv) For shop inspections of the inner diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections BV, BX(1) through BX(5), BZ(1), and CA. (v) Any liner loss which results in lifting of the USI probe from the liner will need to be repaired in order to perform an acceptable inspection. Liner loss found under the intended path of the USI probe must be smaller than the head of the probe.
Required actions
For IAE V2500-A1, V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, and V2533-A5 Turbofan Engines with S/Ns in “Group B” in Paragraph 1.A. in IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, perform an initial USI of the HPC stage 3 to 8 drum before accumulating 12,500 CSN or within 500 cycles from the effective date of this AD, whichever occurs later, not to exceed 13,700 CSN, as follows: (1) For IAE V2500-A1 turbofan engines: (i) For on-wing inspections of the outer diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections E, G(1) through G(5), I, and J. (ii) For on-wing inspections of the inner diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections L, N(1) through N(5), P(1), and Q. (iii) For shop inspections of the outer diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections AU, AW(1) through AW(5), AY, and AZ. (iv) For shop inspections of the inner diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections BB, BD(1) through BD(5), BF(1), and BG. (v) Any liner loss which results in lifting of the USI probe from the liner will need to be repaired in order to perform an acceptable inspection. Liner loss found under the intended path of the USI probe must be smaller than the head of the probe. (2) For V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, and V2533-A5 turbofan engines: (i) For on-wing inspections of the outer diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections Z, AB(1) through AB(5), AD, and AE. (ii) For on-wing inspections of the inner diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections AG, AI(1) through AI(5), AK(1), and AL. (iii) For shop inspections of the outer diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections BO, BQ(1) through BQ(5), BS, and BT. (iv) For shop inspections of the inner diameter, perform an initial USI using IAE NMSB No. V2500-ENG-72-0615, Revision 3, dated September 20, 2011, Accomplishment Instructions, paragraph 3, sections BV, BX(1) through BX(5), BZ(1), and CA. (v) Any liner loss which results in lifting of the USI probe from the liner will need to be repaired in order to perform an acceptable inspection. Liner loss found under the intended path of the USI probe must be smaller than the head of the probe.
Unsafe condition
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done.
Affected ADs
This AD supersedes AD 2010-20-07, Amendment 39-16441 (75 FR 59067, September 27, 2010).
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