# CFM International CFM56-7B27/3 series

- Type: Engine model (FAA registry)
- Registry code: 13805
- Manufacturer (registry): CFM INTL
- Model: CFM56-7B27/3
- Engine type: Turbo-fan
- Power: 27,300 lb thrust
- Installed in: 3 registered aircraft
- Page: https://openairdocs.org/engine/cfm-international-cfm56-7b27-3-series

The registry names only the engine series, so ADs for every model in the series are matched.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2023-05-05](https://openairdocs.org/ad/2023-05-05): Turbine Engine Compressor Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 98 more. Effective May 10, 2023
- [AD 2022-02-03](https://openairdocs.org/ad/2022-02-03): Turbine Engine Accessory Drive · CFM International CFM56-3, CFM56-3B, CFM56-3C and 34 more. Effective Mar 22, 2022
- [AD 2018-26-01](https://openairdocs.org/ad/2018-26-01): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jan 10, 2019
- [AD 2018-09-51](https://openairdocs.org/ad/2018-09-51): Engine · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jun 7, 2018
- [AD 2015-18-04](https://openairdocs.org/ad/2015-18-04): 73-tooth gearshaft located in the engine accessory gearbox (AGB) · CFM International CFM56-3, CFM56-7B20, CFM56-7B20/2 and 47 more. Effective Oct 20, 2015
- [AD 2015-04-02](https://openairdocs.org/ad/2015-04-02): Dual engine thrust instability event · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Mar 31, 2015
- [AD 2010-13-09](https://openairdocs.org/ad/2010-13-09): Stage 3 low-pressure turbine (LPT) · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 88 more. Effective Jul 26, 2010
- [AD 2010-01-05](https://openairdocs.org/ad/2010-01-05): LP turbine rear frames · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 25 more. Effective Feb 18, 2010
- [AD 2009-11-02](https://openairdocs.org/ad/2009-11-02): HPC 4-9 spools · CFM International CFM56-2, CFM56-2A, CFM56-2B and 109 more. Effective Jun 23, 2009
- [AD 2006-26-01](https://openairdocs.org/ad/2006-26-01): Fuel filters · CFM International CFM56-2, CFM56-2A, CFM56-2B and 93 more. Effective Jan 3, 2007
- [AD 98-14-51](https://openairdocs.org/ad/98-14-51): Accessory Gearbox · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 10 more. Effective Oct 1, 1998

Historical (superseded or no longer in force):

- [AD 2021-10-09](https://openairdocs.org/ad/2021-10-09) (historical): Turbine Engine Compressor Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 82 more. Effective Jun 24, 2021
- [AD 2018-18-01](https://openairdocs.org/ad/2018-18-01) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Oct 16, 2018
- [AD 2018-10-11](https://openairdocs.org/ad/2018-10-11) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jun 1, 2018
- [AD 2018-09-10](https://openairdocs.org/ad/2018-09-10) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective May 14, 2018
- [AD 2013-26-01](https://openairdocs.org/ad/2013-26-01) (historical): Oil dynamic seal assembly · CFM International CFM56-3, CFM56-3B, CFM56-3C and 52 more. Effective Feb 3, 2014

## Information bulletins (advisory) (4)

- [SAIB NE-08-17R3](https://openairdocs.org/saib/NE-08-17R3): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued May 28, 2014
- [SAIB NE-08-17R2](https://openairdocs.org/saib/NE-08-17R2) (historical): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued Mar 7, 2011
- [SAIB NE-08-17R1](https://openairdocs.org/saib/NE-08-17R1) (historical): Propulsion Technology LLC Unapproved Repair. Issued May 22, 2008
- [SAIB NE-08-17](https://openairdocs.org/saib/NE-08-17) (historical): Propulsion Technologies International Unapproved Repair. Issued May 14, 2008

## Registered aircraft (3)

- [N368AR](https://openairdocs.org/aircraft/N368AR): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2011, S/N 36880
- [N377AR](https://openairdocs.org/aircraft/N377AR): [Wells Fargo Trust Co Na Trustee](https://openairdocs.org/faa-owner/WELLS%20FARGO%20TRUST%20CO%20NA%20TRUSTEE), [Columbia, MD](https://openairdocs.org/faa-place/MD/Columbia), built 2010, S/N 37753
- [N852SY](https://openairdocs.org/aircraft/N852SY): [Sun Country Inc](https://openairdocs.org/faa-owner/SUN%20COUNTRY%20INC), [Minneapolis, MN](https://openairdocs.org/faa-place/MN/Minneapolis), built 2010, S/N 40910

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DCA17WA168](https://openairdocs.org/ntsb/DCA17WA168), Aug 1, 2017: Boeing 737 (N368AR), Tijuana, Mexico, incident, no damage

## FAA accident and incident reports

None matched to aircraft with this engine model.

## Service difficulty reports (372, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR AALA202505192967](https://openairdocs.org/sdr/AALA202505192967), May 17, 2025: PROBE. OVERTEMP. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ON THE TAKEOFF ROLL, ENGINE 2 EXCEED THE EGT LIMITS FOR 45 SECONDS TO ONE MINUTE AND WAS AT APPROXIMATE
- [SDR AALA202407238218](https://openairdocs.org/sdr/AALA202407238218), Jul 21, 2024: ENGINE. FAILED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: RIGHT ENGINE FAILURE INFLIGHT AT 10K'; AIRCRAFT AIR INTERRUPTED TO AND LANDED SAFELY AT DFW. REMOVE AND
- [SDR ASAA2024022348140](https://openairdocs.org/sdr/ASAA2024022348140), Feb 23, 2024: TRACK SPLICE. CORRODED. AFT PIT RBL 3 FLOOR RAIL SPLICE AT STA 727I+4 IS CORRODED. GROUNDED - YES. FABRICATED AND REPLACED AFT PIT FLOOR RAIL SPLICE RBL 3 STA 727I+4 IAW 737-900 SRM 51
- [SDR ASAA2023093045376](https://openairdocs.org/sdr/ASAA2023093045376), Sep 30, 2023: ENGINE. DAMAGED. #1 ENGINE LPTACC COOLING AIR MANIFOLD HAS CHAFING DAMAGE FROM CONTACT WITH THE I/B T/R BLANKET (BELOW CLAMP). GROUNDED - YES. OTS OF LIMITS REF ESM TASK 72-54-1
- [SDR ASAA2023093045382](https://openairdocs.org/sdr/ASAA2023093045382), Sep 30, 2023: GUIDE VANE. CRACKED. DURING 3 CARD BORO INSPECTION FOUND 6 LPT NOZZLE GUIDE VANES W/ INTERSECTING CRACKS AND MISSING MATERIAL. AMM REF 72-00-00-200-811-F00 F, 2, D 3. GROUNDED - YES
- [SDR ASAA2023092945369](https://openairdocs.org/sdr/ASAA2023092945369), Sep 29, 2023: ENGINE. MAKING METAL. REF. W/O 1970762 T/C PWRPL-79EO-069942-1 FOUND #1 ENG AGB/TGB CHIP DETECTOR WITH MAGNETIC SHINY MATERIAL. GROUNDED - YES. ENGINE REMOVED, ESN 896209, TRANSFERED
- [SDR ASAA2023092945370](https://openairdocs.org/sdr/ASAA2023092945370), Sep 29, 2023: ENGINE. MAKING METAL. REF. W/O 1970762 T/C PWRPL-79EO-06942-1 FOUND #1 ENG FWD SUMP CHIP DETECTOR WITH MAGNETIC MATERIAL. GROUNDED - YES. ENGINE REMOVED, ESN 896209, TRANSFERED TO SH
- [SDR ASAA2023092945371](https://openairdocs.org/sdr/ASAA2023092945371), Sep 29, 2023: ENGINE. MAKING METAL. REF. W/O 1970762 T/C PWRPL-79EO-06942-1 FOUND #1 ENG AFT SUMP CHIP DETECTOR WITH MAGNETIC MATERIAL. GROUNDED - YES. ENGINE REMOVED, ESN 896209, TRANSFERED TO SH
- [SDR ASAA2023092745444](https://openairdocs.org/sdr/ASAA2023092745444), Sep 27, 2023: ENGINE. ABNORMAL. CFM REPORTS #1 ENGINE EGT INDICATION ISSUES AND TREND DATA SHOWS EXCESSIVE SCATTER IN DATA POINTS. GROUNDED - YES. TRANSFERRED TSR TO EBU SHOP W/O 1971172 N/R #
- [SDR ASAA2023052643389](https://openairdocs.org/sdr/ASAA2023052643389), May 26, 2023: HOOK. WORN. WHILE PERFORMING T/C SBCFM56-7B-1074-1 ON THE #2 ENG, ESN 804633 NOTED THAT THE STAGE 3 J-HOOK WAS WORN COMPLETELY THROUGH @ THE 12 O'CLOCK POSITION. GROUNDED -
- [SDR ASAA2023052443360](https://openairdocs.org/sdr/ASAA2023052443360), May 24, 2023: ENGINE. DAMAGED. WHILE ACCOMPLISHING ASA SBCFM56-7B-72-1074-1. FOUND ON STAGE 3 SLAB PIN AT THE 9 O'CLOCK POSITION LIBERATED. CAUSING DAMAGE TO THE J-HOOK AND SPOOL. REQUIRES EN
- [SDR ASAA2023052443386](https://openairdocs.org/sdr/ASAA2023052443386), May 24, 2023: OIL SYSTEM. LEAKING. WHILE ACCOMPLISHING ASA TSR714364 FOUND FWD SUMP DRAIN LEAKING AT 1 DROP EVERY 3 SECOND AT IDLE. DURING PART POWER LEAK CHECK ON TSR, FWD SUMP DRAIN FILLED BAG 
- [SDR ASAA2023052243363](https://openairdocs.org/sdr/ASAA2023052243363), May 22, 2023: ENGINE. INDICATION. GE DIAGNOSTICS REPORTS #1 ENGINE TREND DATA HAS EXPERIENCED A DECREASE/INCREASE IN DELTA EGT AND DEC/INC IN HOT DAY MARGIN. DELTA FUEL FLOW AND DELTA CORE SPEED
- [SDR ASAA2023052143317](https://openairdocs.org/sdr/ASAA2023052143317), May 21, 2023: HOOK. WORN. WHILE ACCOMPLISHING ASA T/C SBCFM56-7B-72-1074-1 FOUND J HOOK WORN THROUGH AND MISSING MATERIAL AT 2 LOCATION ON #1 ENGINE 4TH STAGE VSV. PER STEP 8 A1 REQUIRES
- [SDR 2023F00076](https://openairdocs.org/sdr/2023F00076), Jan 16, 2023: NONE. NONE. FUEL DRIP ENGINE 2 DURING STAR, WAS ACCOMPLISHED TEST IDLE POWER LEACK CHECK IAW AMM. 71-00-00-700-801-F00, ENGINE VENTS AND DRAINS
- [SDR ASAA2023012341596](https://openairdocs.org/sdr/ASAA2023012341596), Jan 14, 2023: GUIDE VANE. DEGRADED. WHILE PERFORMING T/C 78472022 SDI BORO HPT BLADES ON ENGINE #2 S/N 896824 FOUND OF STAGE 1 LPT NOZZLE GUIDE VANES. GROUNDED - YES. REMOVED ENGINE, INSTALLED ENG
- [SDR ASAA2022122841298](https://openairdocs.org/sdr/ASAA2022122841298), Dec 28, 2022: HOOK. WORN. WHILE ACCOMPLISHING BORO ASA TC SBCFM56-7B-72-1074-1 (VSV SYSTEM FOR ROTOR TO STATOR CONTACT) FOUND J-HOOK COMPLETELY WORN THROUGH AND OVERLAPPING AT STAGE 3 DU
- [SDR ASAA2022122721251](https://openairdocs.org/sdr/ASAA2022122721251), Dec 22, 2022: HOOK. WORN. REF T/C #SBCFM56-7B-72-1074-1 ON WING BORESCOPE INSPECTION OF METALLIC, HYBRID VSV SYSTEM FOR ROTOR TO STATOR CONTACT. FOUND STAGE 3 J-HOOK AT 6 OCLOCK WORN COM
- [SDR ASAA2022121741170](https://openairdocs.org/sdr/ASAA2022121741170), Dec 17, 2022: ENGINE. FIRE. #1 ENGINE LPT FRAME HAS WEAR MARK CAUSED BY A LOOSE FASTENER AT THE 6 O'CLOK POSITION OF THE AFT FLANGE. GROUNDED - YES. IN REFERENCE TO CFM56-7B ESM # 72-56-01
- [SDR ASAA2022121541171](https://openairdocs.org/sdr/ASAA2022121541171), Dec 15, 2022: ENGINE. DAMAGED. WHILE ACCOMPLISHING ASA C SB CFM56-7B7B-72-1074-A ON #2 ENGINE S/N # 896912 MULTIPLE LOCATION, 3RD STG VSV SLAB HEAD PIN HAD LIBERATED AND CAUSED DAMAGE TO COMP
- [SDR AALA202211234021](https://openairdocs.org/sdr/AALA202211234021), Nov 21, 2022: COMPRESSOR. STALLED. AIRCRAFT WAS GROUNDED: COMPRESSOR STALL #1 ENGINE ON BEGINNING OF DESCENT INTO LAX. EMERGENCY DECLARED; FLIGHT LANDED SAFELY. **SUPPLEMENTAL REPORT WILL BE SUBM
- [SDR 2021F00239](https://openairdocs.org/sdr/2021F00239), Sep 13, 2021: CARBON SEAL. DAMAGED. LEFT ENGINE OIL LEAK BY IDG DRAIN, DURING OVERNIGHT CHECK AT MEX STATION, DUE TO BORESCOPE INSPECTION AT LEFT ENGINE. MAINTENANCE PERSONNEL PERFORMED LEFT ENGIN
- [SDR 2021F00227](https://openairdocs.org/sdr/2021F00227), Sep 9, 2021: FUEL HEATER. LEAKING. FUEL LEAK IN THE RIGHT ENGINE, DURING TRANSIT CHECK, A FUEL LEAK WAS DETECTED IN THE RIGHT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION ON RIGHT ENGINE VENT
- [SDR ASAA2021060735061](https://openairdocs.org/sdr/ASAA2021060735061), Jun 7, 2021: BLADE. DAMAGED. REF T/C #7847001 SPECIAL DETAIL INSPECTION (SDI) (BORESCOPE) - CFM56-7 HPC #2 ENG. STAGES 2,4,6,8 BLADES. GROUNDED - YES. FOUND DAMAGE ON AFT SIDE STG 3 BLADES,
- [SDR ASAA2021051434822](https://openairdocs.org/sdr/ASAA2021051434822), May 14, 2021: PIN. DAMAGED. WHILE ACCOMPLISHING T.C. SB CFM56-7B-72-0986-1 FOUND 3RD STG VSV SLAB HEAD PIN LIBERATED @ 3 O'CLOCK POSITION ALF CAUSING DAMAGE TO BOOSTER SPOOL ALONG WITH DOW
- [SDR ASAA2021030134235](https://openairdocs.org/sdr/ASAA2021030134235), Mar 1, 2021: BLADE. DAMAGED. ON FINAL IN SEA AT 300' AGL FOR 16R FULLY CONFIGURED AT FLAPS 30 DEGREES NOTICED SOUNDS OF COMPRESSOR STALL ON NO. 1 ENG AS WELL AS NI ON NO.1 ENG FLUCTUATION. 
- [SDR ASMF202104002](https://openairdocs.org/sdr/ASMF202104002), Feb 3, 2021: SERVO. LEAKING. AIRCRAFT RETURNED TO PLATFORM DUE TO DURING RIGHT ENGINE START, A FUEL LEAK WAS DETECTED IN THE RIGHT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION, DETECTIN
- [SDR AALA202011259009](https://openairdocs.org/sdr/AALA202011259009), Nov 23, 2020: EEC. FAULTY. AIRCRAFT WAS GROUNDED. RT ENGINE HAS LONG PERIODS OF N1 AND N2 FUEL FLOW FLUCTUATIONS AT FL390/.78M N1 RANGE 91.4 TO 95.0, FUEL FLOW RANGE 2.5 TO 3.1, THROTTLES
- [SDR AALA202011259010](https://openairdocs.org/sdr/AALA202011259010), Nov 23, 2020: SENSOR. FAULTY. AIRCRAFT WAS GROUNDED. RT ENGINE HAS LONG PERIODS OF N1 AND N2 FUEL FLOW FLUCTUATIONS AT FL390/.78M N1 RANGE 91.4 TO 95.0, FUEL FLOW RANGE 2.5 TO 3.1, THROTTLES
- [SDR ASMF202101006](https://openairdocs.org/sdr/ASMF202101006), Oct 18, 2020: VALVE. LEAKING. DURING OVERNIGHT CHECK AT MEX STATION, IT WAS DETECTED A FUEL LEAK AT RIGHT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION. DETECTING THE RIGHT ENGINE HPTACC 
- [SDR ASMF202011006](https://openairdocs.org/sdr/ASMF202011006), Sep 22, 2020: BLADE. DENTED. DURING THE OVERNIGHT AT MEX STATION AND IN ACCORDANCE WITH EO 3772005 R4 OF LEFT ENGINE FAN DISK PRESSURE FACES INSPECTION, IT WAS DETECTED A DENT IN THE FAN BL
- [SDR ASMF2020090705](https://openairdocs.org/sdr/ASMF2020090705), Jul 2, 2020: ACTUATOR. FAILED. DURING WORKS OF RETURN TO SERVICE, IT WAS DETECTED HIT ON BOTH ENG REVERSERS. MAINTENANCE PERSONNEL PERFORMED GROUND HANDLING EQUIPMENT HITS AIRPLANE CONDITIONA
- [SDR ASAA2020060832783](https://openairdocs.org/sdr/ASAA2020060832783), Jun 6, 2020: ENGINE. OIL CONSUMPTION. CONTINUED RISING OIL CONSUMPTION OF NR 2 ENGINE AFTER EXTENSIVE TROUBLESHOOTING, WITH NO FINDINGS. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENGINE IAW T/C 7847
- [SDR ASMF202006019](https://openairdocs.org/sdr/ASMF202006019), Mar 18, 2020: FUEL HEATER. LEAKING. DURING MAINTENANCE PROGRAM CHECK, IT WAS DETECTED A LEFT ENGINE FUEL LEAK. MAINTENANCE PERSONNEL PERFORMED REVISION, DETECTING FUEL LEAK IN THE FUEL HEATER SERV
- [SDR ASAA2020031732438](https://openairdocs.org/sdr/ASAA2020031732438), Mar 13, 2020: ENGINE. OIL CONSUMPTION. PASSING THROUGH 15000 FEET WE RECEIVED REVERSE VIDEO LOW ENGINE OIL QUANTITY AT 4 QUARTS. WE RAN QRH AND RETURNED TO PDX. OIL QUANTITY INCREASED TO 6 QUARTS ON 
- [SDR ASAA2020021963209](https://openairdocs.org/sdr/ASAA2020021963209), Feb 16, 2020: ENGINE. OUT OF LIMITS. GE DIAGNOSTICS REPORTS THE #2 ENGINE EXPERIENCED AN EGT EXCEEDANCE DURING TAKEOFF THAT MAY HAVE EXCEEDED THE TRANSIENT AREA LIMITS. PEAK EGT RECORDED ON REPORT 
- [SDR ASAA2019103101187](https://openairdocs.org/sdr/ASAA2019103101187), Oct 30, 2019: PIN. MISSING. DURING ACCOMPLISHMENT OF SBCFM56-7B-72-0986-1 BORESCOPE INSP, METALLIC HYBRID #1 ENGINE STEP 7 FOUND STAGE 3 PIN AT 9 O'CLOCK MISSING AND DAMAGED ON THE ROTOR, 
- [SDR CA190829004](https://openairdocs.org/sdr/CA190829004), Jul 15, 2019: O-RING. UNSERVICEABLE. (CAN) ENGINE REPORTED LOW OIL QUANTITY OBSERVED ON TAKEOFF ROLL. HIGH POWER RUN COMPLETED AFTER FLIGHT WITH EXCESSIVE LEAKAGE COMING OUT OF THE TGB HOUSING SLEE
- [SDR ASAA2019061749714](https://openairdocs.org/sdr/ASAA2019061749714), Jun 14, 2019: PIN. DAMAGED. DURING ACCOMPLISH REINSPECT OF #1 ENG ESN 896938 FOUND PIN STAGE 3 AT 3 OCLOCK POSITION ROTATED 90 DEG AND MIGRATING. REF SB CFM56-7B-72-0986-1 INITIAL WRITE-UP
- [SDR ASAA2019031428615](https://openairdocs.org/sdr/ASAA2019031428615), Mar 14, 2019: FRAME. CORRODED. CORROSION UNDER NR 2 ENGINE FAN FRAME NUTPLATES EXCEED ALLOWABLE BLEND LIMIT PER AMM 72-23-05-700-801-F00. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENG REF T/C
- [SDR ASAA2019022728373](https://openairdocs.org/sdr/ASAA2019022728373), Feb 27, 2019: ENGINE. DAMAGED. SILVER FILIFORM MATERIAL FOUND IN THE #1 ENGINE FLAME ARRESTOR AND AFT SUMP MCD. GROUNDED - YES. REMOVED 31 ENG OIL INLET COVER REF B737-800 AMM 72-56-00-000-80
- [SDR ASAA2018101626494](https://openairdocs.org/sdr/ASAA2018101626494), Oct 16, 2018: NOT REPORTED. MELTED. NR 1 ENGINE WAS OBSERVED TO HAVE MELTED MATERIAL ON THE FRONT COMPRESSOR CASE BETWEEN THE 2ND AND 3RD STAGE VSV ACTUATION RINGS FROM APPROX THE 4 O’CLOCK TO 2 O
- [SDR ASAA2018101526496](https://openairdocs.org/sdr/ASAA2018101526496), Oct 15, 2018: NUT PLATE. CORRODED. WHILE ACCOMPLISHING T/C 78472000 NR 1 ENGINE FOUND 3 NUTPLATE CORRODED BEHIND OIL TANK. GROUNDED - YES. REMOVED AND REPLACED ENGINE NR 1 REF W/O 428952.
- [SDR ASAA2018092626276](https://openairdocs.org/sdr/ASAA2018092626276), Sep 26, 2018: PIN. MIGRATED. NR 1 ENGINE S/N 802957 FAILED HYBRID METALLIC BORESCOPE T/C SBCFM-56-7B-72-09-86-1, THIRD STAGE VSV SLAB HEAD PIN AT 9 OCLOCK ROTATED 90 AND MIGRATING. PICTURES
- [SDR ASAA2018091726159](https://openairdocs.org/sdr/ASAA2018091726159), Sep 17, 2018: GUIDE VANE. DAMAGED. WHILE ACCOMPLISHING T/C 78472022 NR 1 ENGINE FOUND 1 STAGE 1 LPT NGV BURNED WITH MISSING MATERIAL. BLADE LOCATED APPROX AT 12:00 POSITION 1. ALSO FOUND 4TH STAG
- [SDR ASAA2018060824949](https://openairdocs.org/sdr/ASAA2018060824949), Jun 4, 2018: ENGINE. MAKING METAL. DURING CLIMB OUT, RECEIVED A NR 1 ENGINE OIL FILTER BYPASS LIGHT. ACFT GROUNDED. ACCOMPLISHED AN EEC BITE IAW FIM 73-00, TASK 801, NO FAULT CODES NOTED. INSPECT
- [SDR ASAA2018060844916](https://openairdocs.org/sdr/ASAA2018060844916), Jun 4, 2018: FILTER. WARNING LIGHT. FOUND A NR 1 ENGINE SHORT TIME FAULT, 77-21131. THE N2 SPEED SENSOR SIGNALS DISAGREE ON FLIGHT LEG 3. ACFT GROUNDED. THE NR 1 ENGINE WAS REPLACED DUE TO AN OIL 
- [SDR AALA2018051700001](https://openairdocs.org/sdr/AALA2018051700001), May 10, 2018: ENGINE. MALFUNCTIONED. DURING CLIMB, AN OIL FILTER BYPASS LIGHT ILLUMINATED FOR THE RT ENGINE, FOLLOW BY LOW OIL PRESSURE AND OIL QUANTITY, SHOWED ZERO, THE ENGINE WAS SHUTDOWN. DECLA
- [SDR ASAA2018050124440](https://openairdocs.org/sdr/ASAA2018050124440), Apr 27, 2018: ENGINE. MAKING METAL. NR 2 ENGINE OIL FILTER BYPASS LIGHT ILLUMINATED DURING CRUISE AT FL 350 AND DID NOT EXTINGUISH WITH THE THRUST LEVER AT IDLE. ACFT GROUNDED. INSPECTED THE NR 2 
- [SDR ASAA2018040324125](https://openairdocs.org/sdr/ASAA2018040324125), Apr 3, 2018: PIN. MIGRATED. NR 1 ENGINE 9 O'CLOCK POSITION THIRD STAGE VSV SLAB HEAD PIN ROTATED 90 DEGREES WITH MIGRATION AND MATERIAL WEDGED BEHIND THE PIN BEYOND LIMITS IAW TC SBCFM56-7

All 372: https://openairdocs.org/engine/cfm-international-cfm56-7b27-3-series/reports.md

## STCs that may be installed (OpenAirDocs) (2)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE04840NY](https://openairdocs.org/stc/SE04840NY): Installation of HarcoSemco Exhaust Gas Temperature (EGT) Electrical Harnesses in CFM56-7 engine. Kilroy Aviation LLC
- [STC SE03036CH](https://openairdocs.org/stc/SE03036CH): Application of a deep compressive stress layer using a Low Plasticity Burnishing (LPB) process on CFM56-7 Series Engines Stage 1 High Pressure Compressor (HPC) Blade Dovetails in accordance with Delta Air Lines Inc. Drawing No. 72-0396, Revision B, dated November 3, 2011, or later FAA Approved revision. Delta Air Lines Inc

## PMA parts (OpenAirDocs) (over 1,000, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.

- [2564M19G01SD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183308050320261019152741.0001): Seal - Stg 2 Cprsr Sttr. Seal Dynamics Inc. A HEICO Aerospace Company · PMA PQ1715CE · Replaces 2564M19G01 · Oct 15, 2026
- [2564M19G01SD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183308050320261019152741.0001): Seal - Stg 2 Cprsr Sttr. Seal Dynamics Inc. A HEICO Aerospace Company · PMA PQ1715CE · Replaces 2564M19G01 · Oct 15, 2026
- [2564M15G02SD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182481008320261019152741.0001): Seal - Retainer Cprsr Sttr. Seal Dynamics Inc. A HEICO Aerospace Company · PMA PQ1715CE · Replaces 2564M15G02 · Oct 15, 2026
- [2564M15G02SD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182481008320261019152741.0001): Seal - Retainer Cprsr Sttr. Seal Dynamics Inc. A HEICO Aerospace Company · PMA PQ1715CE · Replaces 2564M15G02 · Oct 15, 2026
- [2564M19G02SD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171586083020261019152741.0001): Seal - Stg 2 Cprsr Sttr. Seal Dynamics Inc. A HEICO Aerospace Company · PMA PQ1715CE · Replaces 2564M19G02 · Oct 15, 2026
- [2564M19G02SD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171586083020261019152741.0001): Seal - Stg 2 Cprsr Sttr. Seal Dynamics Inc. A HEICO Aerospace Company · PMA PQ1715CE · Replaces 2564M19G02 · Oct 15, 2026
- [2564M15G01SD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139341463420261019152740.0001): Seal - Stg 3 Cprsr Sttr. Seal Dynamics Inc. A HEICO Aerospace Company · PMA PQ1715CE · Replaces 2564M15G01 · Oct 15, 2026
- [2564M15G01SD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139341463420261019152740.0001): Seal - Stg 3 Cprsr Sttr. Seal Dynamics Inc. A HEICO Aerospace Company · PMA PQ1715CE · Replaces 2564M15G01 · Oct 15, 2026
- [AAP-3179410-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161769751220261022213314.0001): SETSCREW. Approved Air Parts, LLC · PMA PQ4173NE · Replaces Honeywell 3179410-1 · Oct 14, 2026
- [AAP-3179410-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161769751220261022213314.0001): SETSCREW. Approved Air Parts, LLC · PMA PQ4173NE · Replaces Honeywell 3179410-1 · Oct 14, 2026
- [KT9974M10P207](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156771068620261019153205.0001): Ring, Piston. Turbine Kinetics Inc., A HEICO Aerospace Company · PMA PQ0816NE · Replaces 9974M10P207 · Oct 7, 2026
- [KT9974M10P207](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156771068620261019153205.0001): Ring, Piston. Turbine Kinetics Inc., A HEICO Aerospace Company · PMA PQ0816NE · Replaces 9974M10P207 · Oct 7, 2026
- [337-141-601-0KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157822411420261008134816.0001): Bolt. Turbine Kinetics Inc., A HEICO Aerospace Company · PMA PQ0816NE · Replaces 337-141-601-0 · Sep 29, 2026
- [337-141-601-0KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157822411420261008134816.0001): Bolt. Turbine Kinetics Inc., A HEICO Aerospace Company · PMA PQ0816NE · Replaces 337-141-601-0 · Sep 29, 2026
- [649-788-399-0JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103937182820260909145920.0001): Packing-Preformed O-Ring. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 649-788-399-0 · Aug 24, 2026
- [649-788-399-0JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103937182820260909145920.0001): Packing-Preformed O-Ring. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 649-788-399-0 · Aug 24, 2026
- [AAP-3181263-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134991105620260923165754.0001): SPRING. Approved Air Parts, LLC · PMA PQ4173NE · Replaces Honeywell 3181263-1 · Aug 5, 2026
- [AAP-3181263-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134991105620260923165754.0001): SPRING. Approved Air Parts, LLC · PMA PQ4173NE · Replaces Honeywell 3181263-1 · Aug 5, 2026
- [2002M87P02JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199317637820260806140031.0001): Gasket - Igniter Adapter. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 2002M87P02 · Jul 30, 2026
- [2002M87P02JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199317637820260806140031.0001): Gasket - Igniter Adapter. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 2002M87P02 · Jul 30, 2026
- [2002M87P01JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID133871277820260806140030.0001): Gasket - Igniter Adapter. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 2002M87P01 · Jul 30, 2026
- [2002M87P01JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID133871277820260806140030.0001): Gasket - Igniter Adapter. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 2002M87P01 · Jul 30, 2026
- [3177421JP-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144029116620260805181453.0001): Setscrew. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces 3177421-1 · Jul 16, 2026
- [3177421JP-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144029116620260805181453.0001): Setscrew. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces 3177421-1 · Jul 16, 2026
- [301-547-905-0JP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163539788920260806140647.0001): Nut. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces 301-547-905-0 · Jul 14, 2026
- [301-547-905-0JP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163539788920260806140647.0001): Nut. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces 301-547-905-0 · Jul 14, 2026
- [AAP-3181264-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110152260220260804212133.0001): LINK ASSEMBLY. Approved Air Parts, LLC · PMA PQ4173NE · Replaces Honeywell 3181264-1 · Jun 29, 2026
- [AAP-3181264-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110152260220260804212133.0001): LINK ASSEMBLY. Approved Air Parts, LLC · PMA PQ4173NE · Replaces Honeywell 3181264-1 · Jun 29, 2026
- [1211342-240-014JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID101824618120260706131723.0001): Packing. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 1211342-240-014 · Jun 25, 2026
- [1211342-240-014JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID101824618120260706131723.0001): Packing. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 1211342-240-014 · Jun 25, 2026
- [9523M35G03JP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191057781220260806140516.0001): Arm Assembly. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces 9523M35G03 · Jun 8, 2026
- [9523M35G03JP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191057781220260806140516.0001): Arm Assembly. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces 9523M35G03 · Jun 8, 2026
- [1385M33G03JP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141058667820260806140515.0001): Arm Assembly. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces 1385M33G03 · Jun 8, 2026
- [1385M33G03JP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141058667820260806140515.0001): Arm Assembly. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces 1385M33G03 · Jun 8, 2026
- [3504845-3WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176108130520260618160615.0001): Gear-Pinion. Wencor, LLC · PMA PQ1370NM · Replaces 3504845-3 · Jun 4, 2026
- [3504845-3WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176108130520260618160615.0001): Gear-Pinion. Wencor, LLC · PMA PQ1370NM · Replaces 3504845-3 · Jun 4, 2026
- [1476M79P05JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107210147820260616140659.0001): Damper - Forward Sleeve. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 1476M79P05 · May 29, 2026
- [1476M79P05JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107210147820260616140659.0001): Damper - Forward Sleeve. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 1476M79P05 · May 29, 2026
- [AAP-3177487-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169754361520260623134833.0001): Setscrew. Approved Air Parts, LLC · PMA PQ4173NE · Replaces Honeywell 3177487-1 · May 26, 2026
- [AAP-3177487-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169754361520260623134833.0001): Setscrew. Approved Air Parts, LLC · PMA PQ4173NE · Replaces Honeywell 3177487-1 · May 26, 2026
- [340-084-104-0JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID177357668320260506211035.0001): Bracket. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 340-084-104-0 · May 4, 2026
- [340-084-104-0JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID177357668320260506211035.0001): Bracket. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 340-084-104-0 · May 4, 2026
- [336-031-701-0JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144123523920260324201242.0001): Weight-Balance 2.9G. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 336-031-701-0 · Feb 25, 2026
- [336-031-701-0JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144123523920260324201242.0001): Weight-Balance 2.9G. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 336-031-701-0 · Feb 25, 2026
- [336-031-710-0JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129285223420260324201243.0001): Weight-Balance 6.5G. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 336-031-710-0 · Feb 25, 2026
- [336-031-710-0JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129285223420260324201243.0001): Weight-Balance 6.5G. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 336-031-710-0 · Feb 25, 2026
- [336-031-708-0JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112259513820260324201242.0001): Weight-Balance 5.7G. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 336-031-708-0 · Feb 25, 2026
- [336-031-708-0JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112259513820260324201242.0001): Weight-Balance 5.7G. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 336-031-708-0 · Feb 25, 2026
- [2949M03P01JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165472228620260225205426.0001): Blade Lock-Compressor Stg 8,9. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 2949M03P01 · Feb 4, 2026
- [2949M03P01JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165472228620260225205426.0001): Blade Lock-Compressor Stg 8,9. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 2949M03P01 · Feb 4, 2026

All of them: https://openairdocs.org/engine/cfm-international-cfm56-7b27-3-series/pma.md

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