Turbine Section - Propulsion Technology LLC Unapproved Repair

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FAA Aviation Safety SPECIAL AIRWORTHINESS INFORMATION BULLETIN SUBJ: Turbine Section - Propulsion Technology LLC Unapproved Repair SAIB: NE-08-17R3 Date: 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.

2 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 S/N Description P/N S/N Description 1282M72P05 GWN039E8 HPT Fwd Seal 1589M66G02 GWN000AE 1-2 Spool 1282M72P02 MPOS5338 HPT Fwd Seal 1589M66G02 GWN002FA 1-2 Spool 1282M72P03 GWNK4631 HPT Fwd Seal 1589M66G02 GWN004A3 1-2 Spool 1387M16P03 MPON1759 HPT Fwd Seal 1589M66G02 GWN00525 1-2 Spool 1282M72P05 GWN003LH HPT Fwd Seal 1589M66G02 GWN00T3T 1-2 Spool 1282M72P05 GWN00997 HPT Fwd Seal 1589M66G02 GWN00V4A 1-2 Spool 1282M72P05 GWN00KYT HPT Fwd Seal 1589M66G02 GWN014H5 1-2 Spool 1282M72P05 GWN012WN HPT Fwd Seal 1589M66G02 GWN01C67 1-2 Spool 1282M72P05 GWN016KR HPT Fwd Seal 1589M66G02 GWN0201W 1-2 Spool 1282M72P05 GWN021HC HPT Fwd Seal 1589M66G02 GWN0264P 1-2 Spool 1282M72P05 GWN02G4J HPT Fwd Seal 1589M66G02 GWN033LL 1-2 Spool 1282M72P05 GWN02GFD HPT Fwd Seal 1589M66G02 GWN03ED1 1-2 Spool 1282M72P05 GWN032T5 HPT Fwd Seal 1589M66G02 GWN03FD5 1-2 Spool 1282M72P05 GWN032TA HPT Fwd Seal 1589M66G02 GWN03FDD 1-2 Spool 1282M72P05 GWN03503 HPT Fwd Seal 1589M66G02 GWN03MW6 1-2 Spool 1282M72P05 GWN03506 HPT Fwd Seal 1589M66G02 GWN03T85 1-2 Spool 1282M72P05 GWN038RE HPT Fwd Seal 1589M66G02 GWN040G6 1-2 Spool 1282M72P05 GWN03F4A HPT Fwd Seal 1589M66G02 GWN040G7 1-2 Spool 1282M72P05 GWN03GH8 HPT Fwd Seal 1589M66G02 GWN045MA 1-2 Spool 1282M72P05 GWN03WF2 HPT Fwd Seal 1589M66G02 GWN04CCW 1-2 Spool 1282M72P05 GWN04168 HPT Fwd Seal 1589M66G02 GWN04K4J 1-2 Spool 1282M72P05 GWN0416E HPT Fwd Seal 1589M66G02 GWN04KW5 1-2 Spool 1282M72P05 GWN045PG HPT Fwd Seal 1589M66G02 GWN04PGM 1-2 Spool 1282M72P05 GWN04GLD HPT Fwd Seal 1589M66G02 GWN04WTL 1-2 Spool 1282M72P05 GWN04J38 HPT Fwd Seal 1589M66G02 GWN05AKG 1-2 Spool 1282M72P05 GWN04J39 HPT Fwd Seal 1589M66G02 GWN05H7D 1-2 Spool 1282M72P05 GWN04PPN HPT Fwd Seal 1589M66G02 GWNBP200 1-2 Spool 1282M72P05 GWN052GH HPT Fwd Seal 1589M66G02 GWNBP765 1-2 Spool 1282M72P05 GWN055L7 HPT Fwd Seal 1589M66G02 GWNHL314 1-2 Spool 1282M72P05 GWN056D0 HPT Fwd Seal 1589M66G02 GWNHL943 1-2 Spool

3 1282M72P05 GWN07GET HPT Fwd Seal 1589M66G02 GWNHP332 1-2 Spool 1282M72P05 GWNDT122 HPT Fwd Seal 1589M66G02 GWNHP474 1-2 Spool 1282M72P05 GWNDY677 HPT Fwd Seal 1589M66G02 GWNJM631 1-2 Spool 1282M72P05 GWNGA929 HPT Fwd Seal 1589M66G02 GWNJM728 1-2 Spool 1282M72P05 GWNGE613 HPT Fwd Seal 1589M66G02 GWNJR675 1-2 Spool 1282M72P05 GWNGF343 HPT Fwd Seal 1589M66G02 GWNPU706 1-2 Spool 1282M72P05 GWNGH394 HPT Fwd Seal 1589M66G02 GWNPW545 1-2 Spool 1282M72P05 GWNGJ063 HPT Fwd Seal 1589M66G02 GWNTC748 1-2 Spool 1282M72P05 GWNGJ548 HPT Fwd Seal 1589M66G02 GWNTD397 1-2 Spool 1282M72P05 GWNGJ567 HPT Fwd Seal 1589M66G02 GWNTD860 1-2 Spool 1282M72P05 GWNGK914 HPT Fwd Seal 1589M66G03 GWNDJ412 1-2 Spool 1282M72P05 GWNGK933 HPT Fwd Seal

1282M72P05 GWNGN848 HPT Fwd Seal 9992M60G06 MPOM1401 1-2 Spool 1282M72P05 GWNGT574 HPT Fwd Seal 9992M60G06 MPOM3369 1-2 Spool 1282M72P05 GWNKF572 HPT Fwd Seal 9992M60G07 MP0R0259 1-2 Spool 1282M72P05 GWNSC522 HPT Fwd Seal 9992M60G07 MPOB1384 1-2 Spool 1282M72P05 GWNSE711 HPT Fwd Seal 9992M60G07 MPOB1911 1-2 Spool 1282M72P05 GWNSE908 HPT Fwd Seal 9992M60G07 MPOB1919 1-2 Spool 1282M72P05 XAE34108 HPT Fwd Seal 9992M60G07 MPOB2310 1-2 Spool 1282M72P05 XAE34228 HPT Fwd Seal 9992M60G07 MPOB2325 1-2 Spool 1282M72P05 XAE34294 HPT Fwd Seal 9992M60G07 MPOB2337 1-2 Spool 1282M72P05 XAE34303 HPT Fwd Seal 9992M60G07 MPOP8088 1-2 Spool 1282M72P05 XAE34390 HPT Fwd Seal 9992M60G07 MPOQ1595 1-2 Spool 1282M72P05 XAE34395 HPT Fwd Seal 9992M60G07 MPOQ2518 1-2 Spool 1282M72P05 XAE34405 HPT Fwd Seal 9992M60G07 MPOR0248 1-2 Spool 1282M72P05 XAE34408 HPT Fwd Seal 9992M60G07 MPOR0279 1-2 Spool 1282M72P05 XAE34436 HPT Fwd Seal 9992M60G07 MPOS4870 1-2 Spool 1282M72P05 XAE34444 HPT Fwd Seal 9992M60G07 MPOS6474 1-2 Spool

9992M60G07 MPOV1876 1-2 Spool 1319M25P02 GAT4662P HPC Rear Seal 9992M60G07 MPOV8156 1-2 Spool 1319M25P02 GFF59A6K HPC Rear Seal 9992M60G07 MPOW7480 1-2 Spool 1319M25P02 GFF59G62 HPC Rear Seal 9992M60G07 MPOW7519 1-2 Spool 1319M25P02 GFF59G9M HPC Rear Seal 9992M60G07 MPOW7620 1-2 Spool 1319M25P02 GFF59G9P HPC Rear Seal 9992M60G07 MPOW7681 1-2 Spool 1319M25P02 GFF59HTF HPC Rear Seal 9992M60G07 MPOW7705 1-2 Spool 1319M25P02 GFF59K50 HPC Rear Seal

1319M25P02 GFF59K51 HPC Rear Seal 9992M60G07 MPOB1413 1-2 Spool 1319M25P02 GFF59L4F HPC Rear Seal 9992M60G07 MPOW7488 1-2 Spool 1319M25P02 GFF59M7P HPC Rear Seal

1319M25P02 GFF59MTE HPC Rear Seal 1588M89G03 GWN03J37 4-9 Spool 1319M25P02 GFF59N60 HPC Rear Seal 1588M89G03 GWN03LDF 4-9 Spool 1319M25P02 GFF59N67 HPC Rear Seal

1319M25P02 GFF59P6T HPC Rear Seal 9514M71P07 DED24052 HPT Aft Shaft 1319M25P02 GFF59PMC HPC Rear Seal 9514M71P07 DED24098 HPT Aft Shaft 1319M25P02 GFF59W50 HPC Rear Seal 9514M71P07 TMTKA286 HPT Aft Shaft 1319M25P02 GFF59WL3 HPC Rear Seal 9514M71P07 TMTKA439 HPT Aft Shaft 1319M25P02 GFF5A59L HPC Rear Seal 9514M71P07 TMTKA502 HPT Aft Shaft 1319M25P02 GFFN9786 HPC Rear Seal 9514M71P07 TMTKA542 HPT Aft Shaft 1319M25P02 GFFR1879 HPC Rear Seal 9514M71P07 TMTKA607 HPT Aft Shaft 1319M25P02 GFFR83RW HPC Rear Seal 9514M71P07 TMTKA687 HPT Aft Shaft 1319M25P02 GFFR89CL HPC Rear Seal 9514M71P07 TMTKA766 HPT Aft Shaft 1319M25P02 GFFR8CG08 HPC Rear Seal 9514M71P07 TMTKA848 HPT Aft Shaft 1319M25P02 GFFR8DHY HPC Rear Seal 9514M71P07 TMTMS017 HPT Aft Shaft 1319M25P02 GFFR8DKP HPC Rear Seal 9514M71P07 TMTMS066 HPT Aft Shaft 1319M25P02 GFFR8H3G HPC Rear Seal 9514M71P07 TMTMS095 HPT Aft Shaft

4 1319M25P02 GFFR8JV7 HPC Rear Seal 9514M71P07 TMTMS289 HPT Aft Shaft 1319M25P02 GFFR8LE2 HPC Rear Seal 9514M71P07 TMTMS302 HPT Aft Shaft 1319M25P02 GFFR8M6P HPC Rear Seal 9514M71P07 TMTMS370 HPT Aft Shaft 1319M25P02 GFFR8MRF HPC Rear Seal 9514M71P07 TMTMS478 HPT Aft Shaft 1319M25P02 GFFR8NM5 HPC Rear Seal 9514M71P07 TMTMS516 HPT Aft Shaft 1319M25P02 GFFR8P6P HPC Rear Seal 9514M71P07 TMTMS583 HPT Aft Shaft 1319M25P02 GFR8NAE HPC Rear Seal 9514M71P07 TMTMS640 HPT Aft Shaft 9514M68P01 MPOG1078 HPC Rear Seal 9514M71P07 TMTMS878 HPT Aft Shaft 9514M68P01 MPOG3679 HPC Rear Seal 9514M71P07 TMTMS932 HPT Aft Shaft 9514M68P01 MPON0942 HPC Rear Seal 9514M71P07 TMTMS965 HPT Aft Shaft 9514M68P01 MPOP3890 HPC Rear Seal 9514M71P07 TMTRY035 HPT Aft Shaft 9514M68P01 MPOP5217 HPC Rear Seal 9514M71P07 TMTRY041 HPT Aft Shaft 9514M68P01 MPOP7489 HPC Rear Seal 9514M71P07 TMTRY103 HPT Aft Shaft 9514M68P01 MPOP9675 HPC Rear Seal 9514M71P07 TMTRY311 HPT Aft Shaft 9514M68P01 MPOP9690 HPC Rear Seal 9514M71P07 TMTRY355 HPT Aft Shaft 9514M68P01 MPOQ3511 HPC Rear Seal 9514M71P06 TMTDK092 HPT Aft Shaft 9514M68P01 MPOQ3888 HPC Rear Seal 9514M71P06 TMTDK096 HPT Aft Shaft

9514M71P07 TMTRY180 HPT Aft Shaft 9514M71P04 APV13118 HPT Aft Shaft 9514M71P07 TMTRY201 HPT Aft Shaft 9514M71P04 APV14791 HPT Aft Shaft 9514M71P07 TMTRY216 HPT Aft Shaft 9514M71P04 APV15273 HPT Aft Shaft

9514M71P04 DED20032 HPT Aft Shaft 9514M71P04 DED20023 HPT Aft Shaft 9514M71P04 DED20058 HPT Aft Shaft 9514M71P04 GWNKP849 HPT Aft Shaft 9514M71P04 DED20066 HPT Aft Shaft 9514M71P04 GWNV5852 HPT Aft Shaft 9514M71P04 DED20089 HPT Aft Shaft

9514M71P04 DED20226 HPT Aft Shaft 1498M45P06 TMTKK268 HPT Aft Shaft 9514M71P04 DED20420 HPT Aft Shaft 1498M45P06 TMTKK511 HPT Aft Shaft 9514M71P04 DED20497 HPT Aft Shaft 1498M45P06 TMTKK996 HPT Aft Shaft 9514M71P04 DED20848 HPT Aft Shaft 1498M45P06 TMTNK091 HPT Aft Shaft 9514M71P04 DED20873 HPT Aft Shaft

9514M71P04 DED21043 HPT Aft Shaft

9514M71P04 DED21188 HPT Aft Shaft

9514M71P04 DED21198 HPT Aft Shaft

9514M71P04 DED21319 HPT Aft Shaft

9514M71P04 DED21357 HPT Aft Shaft

9514M71P04 DED21470 HPT Aft Shaft

9514M71P04 DED21495 HPT Aft Shaft

9514M71P04 DED21505 HPT Aft Shaft

9514M71P04 DED22196 HPT Aft Shaft

9514M71P04 DED22303 HPT Aft Shaft

9514M71P04 DED22502 HPT Aft Shaft

9514M71P04 DED22609 HPT Aft Shaft

9514M71P04 DED22724 HPT Aft Shaft

9514M71P04 TMTAH010 HPT Aft Shaft

9514M71P04 TMTAH079 HPT Aft Shaft

9514M71P04 GWND0454 HPT Aft Shaft

9514M71P04 GWND0459 HPT Aft Shaft

9514M71P04 GWND1795 HPT Aft Shaft

9514M71P04 GWND2983 HPT Aft Shaft

9514M71P04 GWND2989 HPT Aft Shaft

9514M71P04 GWND6659 HPT Aft Shaft

9514M71P04 GWND7978 HPT Aft Shaft

9514M71P04 GWNH1197 HPT Aft Shaft

9514M71P04 GWNH3896 HPT Aft Shaft

9514M71P04 GWNH6048 HPT Aft Shaft

9514M71P04 GWNH6624 HPT Aft Shaft

5 9514M71P04 GWNKC613 HPT Aft Shaft 9514M71P04 GWNKH137 HPT Aft Shaft 9514M71P04 GWNL5693 HPT Aft Shaft 9514M71P04 GWNV1543 HPT Aft Shaft 9514M71P04 GWNV2951 HPT Aft Shaft 9514M71P04 GWNV5221 HPT Aft Shaft 9514M71P04 GWNW7296 HPT Aft Shaft 9514M71P04 GWNW7324 HPT Aft Shaft 9514M71P04 GWNW7325 HPT Aft Shaft 9514M71P04 GWNW7337 HPT Aft Shaft 9514M71P07 TMTRY150 HPT Aft Shaft 9514M71P07 DED23880 HPT Aft Shaft 9514M71P07 DED23946 HPT Aft Shaft 9514M71P07 DED23985 HPT Aft Shaft 9514M71P07 DED24013 HPT Aft Shaft 9514M71P07 DED23989 HPT Aft Shaft 1319M15P02 GWMKC508 HPT Aft Shaft 1319M15P02 GWNE7964 HPT Aft Shaft 1319M15P02 GWNKA830 HPT Aft Shaft 1319M15P02 GWNKB376 HPT Aft Shaft 1319M15P02 GWNKE860 HPT Aft Shaft 1319M15P02 GWNKF513 HPT Aft Shaft 1319M15P02 GWNKP175 HPT Aft Shaft 1319M15P02 GWNKP601 HPT Aft Shaft 1319M15P02 GWNKS825 HPT Aft Shaft 1319M15P05 GWNKT828 HPT Aft Shaft 1319M15P02 GWNL7999 HPT Aft Shaft 1319M15P02 GWNV1673 HPT Aft Shaft 1319M15P02 GWNV2449 HPT Aft Shaft 1319M15P02 GWNV2453 HPT Aft Shaft 1319M15P02 GWNV8249 HPT Aft Shaft 1319M15P05 TMTKH019 HPT Aft Shaft 1319M15P05 TMTKH090 HPT Aft Shaft 1319M15P05 TMTKH198 HPT Aft Shaft 1282M72P03 GWNK5081 HPT FOS 1498M45P03 GWNKG180 HPT Aft Shaft 1498M45P08 TMTKM017 HPT Aft Shaft 1498M45P08 TMTKM265 HPT Aft Shaft