# CFM International CFM56-7B27EB3 series

- Type: Engine model (FAA registry)
- Registry code: 13807
- Manufacturer (registry): CFM INTL
- Model: CFM56-7B27EB3
- Engine type: Turbo-fan
- Power: 27,300 lb thrust
- Installed in: 6 registered aircraft
- Page: https://openairdocs.org/engine/cfm-international-cfm56-7b27eb3-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 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 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

Historical (superseded or no longer in force):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) (2)

- [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

## Registered aircraft (6)

- [N301SR](https://openairdocs.org/aircraft/N301SR): [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 38854
- [N471DS](https://openairdocs.org/aircraft/N471DS): [Boeing Co](https://openairdocs.org/faa-owner/BOEING%20CO), [Renton, WA](https://openairdocs.org/faa-place/WA/Renton), built 2025, S/N 68737
- [N522NR](https://openairdocs.org/aircraft/N522NR): [Tvpx Aircraft Solutions Inc Trustee](https://openairdocs.org/faa-owner/TVPX%20AIRCRAFT%20SOLUTIONS%20INC%20TRUSTEE), [North Salt Lake, UT](https://openairdocs.org/faa-place/UT/North%20Salt%20Lake), built 2014, S/N 42215
- [N626DS](https://openairdocs.org/aircraft/N626DS): [Boeing Co](https://openairdocs.org/faa-owner/BOEING%20CO), [Renton, WA](https://openairdocs.org/faa-place/WA/Renton), built 2025, S/N 68738
- [N839BA](https://openairdocs.org/aircraft/N839BA): [Boeing Co](https://openairdocs.org/faa-owner/BOEING%20CO), [Gary, IN](https://openairdocs.org/faa-place/IN/Gary), built 2016, S/N 62699
- [N853DN](https://openairdocs.org/aircraft/N853DN): [Delta Air Lines Inc](https://openairdocs.org/faa-owner/DELTA%20AIR%20LINES%20INC), [Atlanta, GA](https://openairdocs.org/faa-place/GA/Atlanta), built 2016, S/N 31964

## 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 DCA24LA245](https://openairdocs.org/ntsb/DCA24LA245), Jul 27, 2024: Boeing 737 (N853DN), Salt Lake City, UT, minor damage. Probable cause: Delta Air Lines flight 2046 flight crew's incorrect evaluation of the clearance between their airplane and Delta Air Lines flight 2046 as they turned onto a perpendicular taxiway.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20201109014819I](https://openairdocs.org/incident/20201109014819I), Nov 9, 2020: Boeing 737-77Z (N839BA), Gary, IN, Minor damage. On November 9th, 2020 at 1724 local time N839BA struck a deer while landing on runway 12 at Gary/Chicago International Airport (kgyy), Gary, Indiana. N839BA…

## STCs that may be installed (OpenAirDocs) (1)

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

## 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.

- [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
- [9057M50P01WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132297149820261008195557.0001): Seal. Wencor, LLC · PMA PQ1370NM · Replaces 9057M50P01 · Oct 1, 2026
- [9057M50P01WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132297149820261008195557.0001): Seal. Wencor, LLC · PMA PQ1370NM · Replaces 9057M50P01 · Oct 1, 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
- [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
- [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
- [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
- [2684985JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180898542020260123155357.0001): Seal, Spring Loaded. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 2684985 · Jan 22, 2026
- [2684985JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180898542020260123155357.0001): Seal, Spring Loaded. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 2684985 · Jan 22, 2026
- [E140375-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149149609920251229153152.0001): Flexible Shaft Assembly. BW Elliott Manufacturing Co LLC · PMA PQ2009NE · Replaces 121762-4 · Dec 17, 2025
- [E140375-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149149609920251229153152.0001): Flexible Shaft Assembly. BW Elliott Manufacturing Co LLC · PMA PQ2009NE · Replaces 121762-4 · Dec 17, 2025
- [2502M08G01MIT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116108932520251216184607.0001): Bracket-Harness J10. Mitchell PMA, LLC · PMA PQ00057EB · Replaces 2502M08G01, 1894M80G01, 1896M53G01 · Nov 13, 2025
- [2502M08G01MIT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116108932520251216184607.0001): Bracket-Harness J10. Mitchell PMA, LLC · PMA PQ00057EB · Replaces 2502M08G01, 1894M80G01, 1896M53G01 · Nov 13, 2025
- [3180847-1WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197862047820260304181447.0001): Gasket. Wencor, LLC · PMA PQ1370NM · Replaces 3180847-1 · Oct 30, 2025
- [3180847-1WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197862047820260304181447.0001): Gasket. Wencor, LLC · PMA PQ1370NM · Replaces 3180847-1 · Oct 30, 2025
- [3507015-1WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127793712020260107202449.0001): Seal - Rotor. Wencor, LLC · PMA PQ1370NM · Replaces 3507015-1 · Oct 30, 2025
- [3507015-1WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127793712020260107202449.0001): Seal - Rotor. Wencor, LLC · PMA PQ1370NM · Replaces 3507015-1 · Oct 30, 2025
- [CN340-256-352-0](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186875907320251113155215.0001): LPT Stage 1 Turbine Vane. Chromalloy Nevada (CNV) · PMA PQ2285NM · Replaces 340-256-352-0 · Oct 27, 2025
- [CN340-256-352-0](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186875907320251113155215.0001): LPT Stage 1 Turbine Vane. Chromalloy Nevada (CNV) · PMA PQ2285NM · Replaces 340-256-352-0 · Oct 27, 2025
- [CN340-256-252-0](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162303338820251113155214.0001): Stage 1 Turbine Vane. Chromalloy Nevada (CNV) · PMA PQ2285NM · Replaces 340-256-252-0 · Oct 27, 2025
- [CN340-256-252-0](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162303338820251113155214.0001): Stage 1 Turbine Vane. Chromalloy Nevada (CNV) · PMA PQ2285NM · Replaces 340-256-252-0 · Oct 27, 2025

All of them: https://openairdocs.org/engine/cfm-international-cfm56-7b27eb3-series/pma.md

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