SPECIAL AIRWORTHINESS INFORMATION BULLETIN FAA Aviation Safety SUBJ: Turbine Section - Propulsion Technology LLC Unapproved Repair SAIB: Date: NE-08-17R3 May 28, 2014 This is information only. Recommendations aren’t mandatory. Introduction This Revised Special Airworthiness Information Bulletin (SAIB) alerts you, owners, operators, certificated repair facilities, and principal maintenance inspectors of CFM International CFM56-2, CFM56-3, CFM56-5A, CFM56-5B, CFM56-5C, and CFM56-7B turbofan engines that Propulsion Technology LLC of Miami, Florida (doing business as Propulsion Technologies International of Miami, Florida), might have improperly repaired and returned to service certain critical engine parts. This SAIB identifies the suspect parts by part number (P/N) and serial number (S/N) and recommends disposition of these parts. At this time the airworthiness concern is not an unsafe condition that would warrant airworthiness directive (AD) action under Title 14 of the Code of Federal Regulations (14 CFR) part 39. This Revision: • Corrects seven part numbers, two serial numbers, and one description; • Updates SUPs investigation status; and • Updates the FAA contact information. Background A suspected unapproved parts (SUP) investigation regarding engine parts overhauled by Propulsion Technology LLC, repair station certificate number XZ4R084M, has revealed that repairs on CFM56 life-limited parts hardware did not meet the requirements of the CFM56 engine overhaul manual. Seal tooth plasma coating was inspected and determined to be, in some areas, thicker than the engine overhaul manual limits. The investigation also found seal tooth plasma coating overspray between the seal teeth, which was not permitted by the engine overhaul manual and potential missed cracks during the fluorescent-penetrant inspection. After processing by Propulsion Technology LLC, the parts listed below may not conform to type design. We are developing inspections with CFM International to determine if the parts conform to type design, as well as developing repair procedures to restore nonconforming parts to type design. Propulsion Technology LLC returned many of these parts to third-party suppliers and repair stations for subsequent installation. The potential non-airworthy condition of these parts was unknown to the third-party suppliers, repair stations, owners, and operators who, in some cases, returned these parts to service. We received the attached list that identifies by P/N and S/N, the suspect parts considered in the SUP investigation for the CFM56 engine models listed above. The SUP investigation was completed and closed by the FAA in May 2008. A letter of correction was issued and this SAIB was initially released. 1 Recommendations If parts identified in the following list were never returned to service after processing by Propulsion Technology LLC, reinspect/ repair the parts per the most recent thermal spray repair documented in the engine shop manual (Example - 72-31-08 Repair 1 for CDP seal). Contact CFM International for further information on the type of inspections to perform. You may return to service any parts successfully completing reinspection/ repair for the remainder of their published lives. If parts identified in the following list were returned to service, remove the parts the next time the engine is inducted into a shop for engine maintenance. The reason we recommend removal of these parts is that the effect on part lives resulting from the weight of the extra coating combined with secondary flow and temperature variations and possible spallation, is unknown. Contact CFM International for further information to determine part disposition. For Further Information Contact William Sobanik, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: (781) 238-7175; fax: (781) 238-7199; email: [email protected]. Life-limited P/Ns and S/Ns P/N 1282M72P05 1282M72P02 1282M72P03 1387M16P03 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 S/N GWN039E8 MPOS5338 GWNK4631 MPON1759 GWN003LH GWN00997 GWN00KYT GWN012WN GWN016KR GWN021HC GWN02G4J GWN02GFD GWN032T5 GWN032TA GWN03503 GWN03506 GWN038RE GWN03F4A GWN03GH8 GWN03WF2 GWN04168 GWN0416E GWN045PG GWN04GLD GWN04J38 GWN04J39 GWN04PPN GWN052GH GWN055L7 GWN056D0 Description P/N HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 2 S/N GWN000AE GWN002FA GWN004A3 GWN00525 GWN00T3T GWN00V4A GWN014H5 GWN01C67 GWN0201W GWN0264P GWN033LL GWN03ED1 GWN03FD5 GWN03FDD GWN03MW6 GWN03T85 GWN040G6 GWN040G7 GWN045MA GWN04CCW GWN04K4J GWN04KW5 GWN04PGM GWN04WTL GWN05AKG GWN05H7D GWNBP200 GWNBP765 GWNHL314 GWNHL943 Description 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 1282M72P05 GWN07GET GWNDT122 GWNDY677 GWNGA929 GWNGE613 GWNGF343 GWNGH394 GWNGJ063 GWNGJ548 GWNGJ567 GWNGK914 GWNGK933 GWNGN848 GWNGT574 GWNKF572 GWNSC522 GWNSE711 GWNSE908 XAE34108 XAE34228 XAE34294 XAE34303 XAE34390 XAE34395 XAE34405 XAE34408 XAE34436 XAE34444 HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal HPT Fwd Seal 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 GAT4662P GFF59A6K GFF59G62 GFF59G9M GFF59G9P GFF59HTF GFF59K50 GFF59K51 GFF59L4F GFF59M7P GFF59MTE GFF59N60 GFF59N67 GFF59P6T GFF59PMC GFF59W50 GFF59WL3 GFF5A59L GFFN9786 GFFR1879 GFFR83RW GFFR89CL GFFR8CG08 GFFR8DHY GFFR8DKP GFFR8H3G HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal 3 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G02 1589M66G03 GWNHP332 GWNHP474 GWNJM631 GWNJM728 GWNJR675 GWNPU706 GWNPW545 GWNTC748 GWNTD397 GWNTD860 GWNDJ412 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 9992M60G06 9992M60G06 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 9992M60G07 MPOM1401 MPOM3369 MP0R0259 MPOB1384 MPOB1911 MPOB1919 MPOB2310 MPOB2325 MPOB2337 MPOP8088 MPOQ1595 MPOQ2518 MPOR0248 MPOR0279 MPOS4870 MPOS6474 MPOV1876 MPOV8156 MPOW7480 MPOW7519 MPOW7620 MPOW7681 MPOW7705 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 1-2 Spool 9992M60G07 9992M60G07 MPOB1413 MPOW7488 1-2 Spool 1-2 Spool 1588M89G03 1588M89G03 GWN03J37 GWN03LDF 4-9 Spool 4-9 Spool 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 DED24052 DED24098 TMTKA286 TMTKA439 TMTKA502 TMTKA542 TMTKA607 TMTKA687 TMTKA766 TMTKA848 TMTMS017 TMTMS066 TMTMS095 HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 1319M25P02 9514M68P01 9514M68P01 9514M68P01 9514M68P01 9514M68P01 9514M68P01 9514M68P01 9514M68P01 9514M68P01 9514M68P01 GFFR8JV7 GFFR8LE2 GFFR8M6P GFFR8MRF GFFR8NM5 GFFR8P6P GFR8NAE MPOG1078 MPOG3679 MPON0942 MPOP3890 MPOP5217 MPOP7489 MPOP9675 MPOP9690 MPOQ3511 MPOQ3888 HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal HPC Rear Seal 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 APV13118 APV14791 APV15273 DED20032 DED20058 DED20066 DED20089 DED20226 DED20420 DED20497 DED20848 DED20873 DED21043 DED21188 DED21198 DED21319 DED21357 DED21470 DED21495 DED21505 DED22196 DED22303 DED22502 DED22609 DED22724 TMTAH010 TMTAH079 GWND0454 GWND0459 GWND1795 GWND2983 GWND2989 GWND6659 GWND7978 GWNH1197 GWNH3896 GWNH6048 GWNH6624 HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft 4 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P06 9514M71P06 9514M71P07 9514M71P07 9514M71P07 TMTMS289 TMTMS302 TMTMS370 TMTMS478 TMTMS516 TMTMS583 TMTMS640 TMTMS878 TMTMS932 TMTMS965 TMTRY035 TMTRY041 TMTRY103 TMTRY311 TMTRY355 TMTDK092 TMTDK096 TMTRY180 TMTRY201 TMTRY216 HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft 9514M71P04 9514M71P04 9514M71P04 DED20023 GWNKP849 GWNV5852 HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft 1498M45P06 1498M45P06 1498M45P06 1498M45P06 TMTKK268 TMTKK511 TMTKK996 TMTNK091 HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P04 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 9514M71P07 1319M15P02 1319M15P02 1319M15P02 1319M15P02 1319M15P02 1319M15P02 1319M15P02 1319M15P02 1319M15P02 1319M15P05 1319M15P02 1319M15P02 1319M15P02 1319M15P02 1319M15P02 1319M15P05 1319M15P05 1319M15P05 1282M72P03 1498M45P03 1498M45P08 1498M45P08 GWNKC613 GWNKH137 GWNL5693 GWNV1543 GWNV2951 GWNV5221 GWNW7296 GWNW7324 GWNW7325 GWNW7337 TMTRY150 DED23880 DED23946 DED23985 DED24013 DED23989 GWMKC508 GWNE7964 GWNKA830 GWNKB376 GWNKE860 GWNKF513 GWNKP175 GWNKP601 GWNKS825 GWNKT828 GWNL7999 GWNV1673 GWNV2449 GWNV2453 GWNV8249 TMTKH019 TMTKH090 TMTKH198 GWNK5081 GWNKG180 TMTKM017 TMTKM265 HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft HPT FOS HPT Aft Shaft HPT Aft Shaft HPT Aft Shaft 5
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