# N227WN: 2005 Boeing 737-7H4

- Status: Valid registration
- Airframe: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (registry code 1384404, 143 seats)
- Engine: [CFM International CFM56 series](https://openairdocs.org/engine/cfm-international-cfm56-series) (registry code 13802)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company) (OpenAirDocs)
- Serial number: 34450
- Year built: 2005
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: December 9, 2005
- Certificate issued: January 5, 2006
- Expires: June 30, 2029
- Mode S code: A1FD03
- Registered owner: [Southwest Airlines Co](https://openairdocs.org/faa-owner/SOUTHWEST%20AIRLINES%20CO)
- Location: [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas)
- Owner type: Corporation
- Owner's area on the map: 32.8326° N, 96.8491° W: Placed by OpenAirDocs at the center of ZIP code 75235, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=227WN
- Page: https://openairdocs.org/aircraft/N227WN

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every CFM International CFM56 model are included.

## ADs that may apply (OpenAirDocs): 55 in force

### Matched by airframe (Boeing 737-7H4)

None in force.

### Matched by engine (CFM International CFM56 series)

- [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 2021-16-08](https://openairdocs.org/ad/2021-16-08): Turbine Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 55 more. Effective Sep 28, 2021
- [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 2017-14-08](https://openairdocs.org/ad/2017-14-08): Turbine Engine Compressor Section · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Aug 18, 2017
- [AD 2017-05-09](https://openairdocs.org/ad/2017-05-09): Accessory Gearboxes · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 33 more. Effective Apr 13, 2017
- [AD 2016-14-10](https://openairdocs.org/ad/2016-14-10): High-pressure turbine (HPT) disks · CFM International CFM56-3, CFM56-3B and CFM56-3C with STC SE00034EN. Effective Aug 9, 2016
- [AD 2016-02-04](https://openairdocs.org/ad/2016-02-04): Turbine rear frames (TRFs) · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 33 more. Effective Mar 1, 2016
- [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 2013-14-06](https://openairdocs.org/ad/2013-14-06): Hydro-mechanical unit (HMU) fuel control · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 34 more. Effective Sep 3, 2013
- [AD 2012-02-03](https://openairdocs.org/ad/2012-02-03): Engine · CFM International CFM56-5B1/3, CFM56-5B2/3, CFM56-5B3/3 and 8 more. Effective Mar 15, 2012
- [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 2010-12-03](https://openairdocs.org/ad/2010-12-03): Fan blades · CFM International CFM56-3 and CFM56-3B. Effective Jul 13, 2010
- [AD 2010-09-14](https://openairdocs.org/ad/2010-09-14): Exhaust gas temperature (EGT) · CFM International CFM56-5B1/2P, CFM56-5B1/P, CFM56-5B2/2P and 16 more. Effective Jun 8, 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 2009-18-01](https://openairdocs.org/ad/2009-18-01): LP turbine rear frames · CFM International CFM56-5B1/3, CFM56-5B1/P, CFM56-5B2/3 and 19 more. Effective Oct 1, 2009
- [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 2008-03-09](https://openairdocs.org/ad/2008-03-09): Low pressure turbine rear frames (TRFs) · CFM International CFM56-7B18, CFM56-7B20, CFM56-7B22 and 10 more. Effective Mar 10, 2008
- [AD 2007-24-04](https://openairdocs.org/ad/2007-24-04): Low pressure turbine (LPT) · CFM International CFM56-5C4/1. Effective Dec 6, 2007
- [AD 2007-03-15](https://openairdocs.org/ad/2007-03-15): Exhaust gas temperature (EGT) harness · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 34 more. Effective Mar 19, 2007
- [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 2005-10-05](https://openairdocs.org/ad/2005-10-05): Air turbine starters · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 50 more. Effective Jun 14, 2005
- [AD 97-09-02 R3](https://openairdocs.org/ad/97-09-02-R3): High pressure turbine rotor (HPTR) front shafts · CFM International CFM56-5C2, CFM56-5C3/G and CFM56-5C4. Effective Oct 14, 2004
- [AD 2004-10-13](https://openairdocs.org/ad/2004-10-13): Service main fuel pumps · CFM International CFM56-3, CFM56-5, CFM56-5-A1/F and 4 more. Effective Jun 24, 2004
- [AD 2002-22-12](https://openairdocs.org/ad/2002-22-12): Titeflex hoses · BAE Systems ATP, Avro 146-RJ100A, Avro 146-RJ70A and 122 more. Effective Dec 13, 2002
- [AD 2002-16-18](https://openairdocs.org/ad/2002-16-18): Low pressure turbine (LPT) nozzle segments · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 33 more. Effective Sep 18, 2002
- [AD 2002-13-03](https://openairdocs.org/ad/2002-13-03): Turbofan Engines · CFM International CFM56-2, CFM56-2A, CFM56-2B and 55 more. Effective Aug 1, 2002
- [AD 2002-02-13](https://openairdocs.org/ad/2002-02-13): Magnetic Drain Plug · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 33 more. Effective Mar 21, 2002
- [AD 2001-11-05](https://openairdocs.org/ad/2001-11-05): No. 4 Bearings · CFM International CFM56-2, CFM56-2B, CFM56-3 and 45 more. Effective Jun 11, 2001
- [AD 2001-09-17](https://openairdocs.org/ad/2001-09-17): Fuel Manifold and CJ9L Harness · CFM International CFM56-5C2, CFM56-5C2/4, CFM56-5C2/F and 13 more. Effective May 14, 2001
- [AD 2001-04-06](https://openairdocs.org/ad/2001-04-06): Fan Disk · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Apr 4, 2001
- [AD 2001-02-12](https://openairdocs.org/ad/2001-02-12): On-Wing Torque Inspection · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 11 more. Effective Feb 14, 2001
- [AD 2000-15-01](https://openairdocs.org/ad/2000-15-01): Fuel Leakage · CFM International CFM56-2, CFM56-2A, CFM56-2B and 39 more. Effective Oct 2, 2000
- [AD 2000-05-22](https://openairdocs.org/ad/2000-05-22): CFM International CFM56-2, CFM56-2A, CFM56-2B and 3 more. Effective May 2, 2000
- [AD 99-06-16](https://openairdocs.org/ad/99-06-16): High Pressure Turbine Rotor (HPTR) Front Air Seal · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 3 more. Effective Apr 21, 1999
- [AD 98-21-23](https://openairdocs.org/ad/98-21-23): Electronic Engine Control · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 10 more. Effective Nov 2, 1998
- [AD 98-19-20](https://openairdocs.org/ad/98-19-20): Hydromechanical Unit · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 7 more. Effective Oct 7, 1998
- [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
- [AD 98-19-10](https://openairdocs.org/ad/98-19-10): Accessory Gearbox · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Sep 28, 1998
- [AD 98-12-32](https://openairdocs.org/ad/98-12-32): High Pressure Turbine Rotor Disks · CFM International CFM56-2, CFM56-2A, CFM56-2B and 3 more. Effective Jul 20, 1998
- [AD 98-10-11](https://openairdocs.org/ad/98-10-11): Accessory Gearbox · CFM International CFM56-3, CFM56-3B, CFM56-3C and 31 more. Effective Jun 3, 1998
- [AD 98-07-02](https://openairdocs.org/ad/98-07-02): Air/oil Seal · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Mar 30, 1998
- [AD 98-02-04](https://openairdocs.org/ad/98-02-04): Low Pressure Turbine Case · CFM International CFM56-5B1/2P, CFM56-5B2/2P, CFM56-5B3/2P and 1 more. Effective Mar 23, 1998
- [AD 89-23-06 R1](https://openairdocs.org/ad/89-23-06-R1): Magnetic Chip Detector · CFM International CFM56-2, CFM56-2A, CFM56-3 and 8 more. Effective Jan 28, 1998
- [AD 97-08-01](https://openairdocs.org/ad/97-08-01): Fan Disks · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Jun 23, 1997
- [AD 97-06-01](https://openairdocs.org/ad/97-06-01): High Pressure Compressor Rotor (HPCR) Stage 1-2 Spool · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 28 more. Effective Jun 3, 1997
- [AD 97-05-13](https://openairdocs.org/ad/97-05-13): Air Turbine Engine Starter · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 3 more. Effective Jun 3, 1997
- [AD 96-25-11](https://openairdocs.org/ad/96-25-11): Redesigned Fan Blades · CFM International CFM56-3B and CFM56-3C. Effective Jan 29, 1997

### 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 2019-12-05](https://openairdocs.org/ad/2019-12-05) (historical): Turbine Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 39 more. Effective Jul 5, 2019
- [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
- [AD 2013-02-02](https://openairdocs.org/ad/2013-02-02) (historical): High-pressure turbine (HPT) disks · CFM International CFM56-3, CFM56-3B and CFM56-3C with STC SE00034EN. Effective Jan 28, 2013
- [AD 2009-01-01](https://openairdocs.org/ad/2009-01-01) (historical): Exhaust gas temperature (EGT) · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 22 more. Effective Dec 31, 2008
- [AD 97-09-02 R2](https://openairdocs.org/ad/97-09-02-R2) (historical): Low pressure turbine rotor (LPTR) · CFM International CFM56-5C2, CFM56-5C2/4, CFM56-5C2/F and 9 more. Effective Apr 29, 2003
- [AD 2003-02-04](https://openairdocs.org/ad/2003-02-04) (historical): Exhaust gas temperature (EGT) · CFM International CFM56-5 Series (all). Effective Feb 27, 2003
- [AD 97-09-02 R1](https://openairdocs.org/ad/97-09-02-R1) (historical): High Pressure Turbine rotor (HPTR) front shaft · CFM International CFM56-5C2/G, CFM56-5C2/G4, CFM56-5C3/G and 3 more. Effective Sep 24, 2002
- [AD 2001-17-14](https://openairdocs.org/ad/2001-17-14) (historical): LPT Conical Supports · CFM International CFM56-5C4/1. Effective Sep 7, 2001
- [AD 2001-08-51](https://openairdocs.org/ad/2001-08-51) (historical): Fuel leakage · CFM International CFM56-5 Series (all)
- [AD 2000-12-01](https://openairdocs.org/ad/2000-12-01) (historical): Critical Life-Limited Parts · CFM International CFM56-2, CFM56-2A, CFM56-2B and 54 more. Effective Dec 11, 2000
- [AD 99-08-16](https://openairdocs.org/ad/99-08-16) (historical): CFM International CFM56-2, CFM56-2A, CFM56-2B and 3 more. Effective May 13, 1999
- [AD 97-09-02](https://openairdocs.org/ad/97-09-02) (historical): High/Low Pressure Turbine Rotor · CFM International CFM56-5C2/G, CFM56-5C2/G4, CFM56-5C3/G and 3 more. Effective Jun 30, 1997

All 71: https://openairdocs.org/aircraft/N227WN/ads.md

## Information bulletins (advisory) (4 in force)

- [SAIB NE-08-17R3](https://openairdocs.org/saib/NE-08-17R3): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued May 28, 2014
- [SAIB NE-13-33R2](https://openairdocs.org/saib/NE-13-33R2): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued Jan 28, 2014
- [SAIB NE-12-29](https://openairdocs.org/saib/NE-12-29): Engine Fuel Distribution  CFM56-5B LPTACC Fuel Manifold. Issued Apr 27, 2012
- [SAIB NE-06-02](https://openairdocs.org/saib/NE-06-02): . Issued Oct 18, 2005
- [SAIB NE-13-33R1](https://openairdocs.org/saib/NE-13-33R1) (historical): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued Jun 24, 2013
- [SAIB NE-13-33](https://openairdocs.org/saib/NE-13-33) (historical): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued May 13, 2013
- [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

## NTSB investigations

None matched to N227WN.

## FAA accident and incident reports

None matched to N227WN.

## Service difficulty reports (286, newest 50)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR SWAA2026101999456](https://openairdocs.org/sdr/SWAA2026101999456), Oct 7, 2026: BATTERY PACK. INOPERATIVE. EMERGENCY LIGHTS INOPERATIVE AT OVERWING AREA. REMOVED AND REPLACED THE BATTERY PACKS M1668, M1669, AND M1672 IAW AMM 33-51-06-960-805. PERFORMED SATISFACTORY O
- [SDR SWAA2026081743718](https://openairdocs.org/sdr/SWAA2026081743718), Aug 12, 2026: BATTERY PACK. INOPERATIVE. EMERGENCY LIGHTS AT SEAT 19DEF AND EXTERIOR BY AFT SVC DOOR & RT OVERWING EMERGENCY EXIT GO OUT SHORTLY AFTER TURNING ON. R & R THE BATTERY PACK IAW AMM 33-51-0
- [SDR SWAA2026070216820](https://openairdocs.org/sdr/SWAA2026070216820), Jun 28, 2026: SIGN. DETACHED. EXIT SIGN CAME DETCHED IN FWD GALLEY. REMOVED AND REPLACED RT FWD GALLEY EXIT SIGN LIGHT ASSY. IAW AMM 33-51-01. OPS CHECKED GOOD.
- [SDR SWAA2026033083822](https://openairdocs.org/sdr/SWAA2026033083822), Mar 26, 2026: ENGINE. POWER LOSS. ON TAKEOFF, NR 2 ENGINE WOULD NOT GO ABOVE 30% N1, REJECTED TAKEOFF AROUND 60 KTS, SMOOTH ROLLOUT. DOWNLOADED DFDR IAW PPE, NO FAULTS FOUND, IAW AMM 31-31-00. I
- [SDR SWAA2026011460459](https://openairdocs.org/sdr/SWAA2026011460459), Jan 12, 2026: BATTERY PACK. INOPERATIVE. AFT ENTRY DOOR HAS MULTIPLE EMERGENCY LIGHTS OUT. REMOVED AND REPLACED M1673 POWER SUPPLY AND BATTERY PACK IAW AMM 33-51-06. OPS CHECKED GOOD.
- [SDR SWAA2025121651845](https://openairdocs.org/sdr/SWAA2025121651845), Dec 12, 2025: LAMP. INOPERATIVE. R/H OVERWING EMERGENCY EXIT LIGHT INOPERATIVE. RELAMPED RT OVERWING EMERGENCY EXIT LIGHT IAW AMM 33-51-02. OPS CHKD GOOD.
- [SDR SWAA2025101524638](https://openairdocs.org/sdr/SWAA2025101524638), Oct 14, 2025: PUMP. OUT OF ADJUST. EXCESSIVE NOSE WHEEL SHIMY ON TAKE OFF ROLL DIFFICULT TIME TRACKING RUNWAY CENTERLINE ; TAKE OFF REJECTED. CREW REPORTED REJECTED T/O BETWEEN 90-100 KTS.<[01] P
- [SDR SWAA2025101524601](https://openairdocs.org/sdr/SWAA2025101524601), Oct 14, 2025: TIRE. ABNORMAL. EXCESSIVE NOSE WHEEL SHIMMY ON TAKE OFF ROLL. DIFFICULT TIME TRACKING RUNWAY CENTERLINE. TAKE OFF REJECTED. CREW REPORTED REJECTED T/O BETWEEN 90-100 KTS. PERFO
- [SDR SWAA2025101423496](https://openairdocs.org/sdr/SWAA2025101423496), Oct 11, 2025: HANDLE. LOOSE. PAX CABIN FWD ENTRY DOOR UPPER ASSISTANT HANDLE LOOSE. INSTALLED CORRECTLY ASSISTAND HANDLE UPPER FWD ENTRY DOOR PAX CABIN IAW BOEING SOPM 20-50-01 REV.39.
- [SDR SWAA2025101413890](https://openairdocs.org/sdr/SWAA2025101413890), Sep 11, 2025: LIGHT. BROKEN. BROKEN PHOTOLUMINESCENT STRIP AT PASSENGER CABIN (10 EA). REPLACED PHOTOLUMINESCENT STRIP AT PASSENGER CABIN (10 EA) IAW SOPM 20-50-12 REV 58 AND DWG 33500007 S
- [SDR SWAA2025101412995](https://openairdocs.org/sdr/SWAA2025101412995), Sep 9, 2025: SCUFF PLATE. CRACKED. CRACK ON SCUFF PLATE FWD SERVICE DOOR. REPAIRED SCUFF PLATE FWD SERVICE DOOR IAW SRM 53-10-15-2R-2 REPAIR 2.
- [SDR SWAA2025101413092](https://openairdocs.org/sdr/SWAA2025101413092), Sep 9, 2025: NUT PLATE. CORRODED. CORROSION RAIL NUT PLATE LOCATED OFSS293 INTERNAL CAVITY LEADING EDGE AT RT WING. EVALUATED RAIL NUT PLATE AND NOT FOUND ALLOWABLE DAMAGE ON SRM IAW B737-700 SR
- [SDR SWAA2025101412992](https://openairdocs.org/sdr/SWAA2025101412992), Sep 9, 2025: SUPPORT ANGLE. CRACKED. CRACK ON SUPPORT ANGLE LOCATED BTW BS 291.5 TO BS 294.5 AT LEVEL STR 17R AT FWD GALLEY AREA. REPLACED SUPPORT ANGLE AND FASTENERS LOCATED BTW BS 291.5 TO BS 294
- [SDR SWAA2025101413091](https://openairdocs.org/sdr/SWAA2025101413091), Sep 9, 2025: NUT PLATE. CORRODED. CORROSION ON RAIL NUT PLATE LOCATED OFSS308 INTERNAL CAVITY LEADING EDGE AT RT WING. EVALUATED RAIL NUT PLATE AND NOT FOUND ALLOWABLE DAMAGE ON SRM IAW SRM 57-2
- [SDR SWAA2025101412994](https://openairdocs.org/sdr/SWAA2025101412994), Sep 9, 2025: ANGLE. CRACKED. CRACK ON ANGLE LOCATED BS 294.5 AT LEVEL STR 13L AT FWD GALLEY AREA. REPLACED ANGLE AND FASTENERS LOCATED BS 294.5 AT LEVEL STR 13L AT FWD GALLEY AREA IAW SRM 5
- [SDR SWAA2025101412770](https://openairdocs.org/sdr/SWAA2025101412770), Sep 8, 2025: STRAP. CORRODED. CORROSION ON STRAP LOCATED BS 887 BTW STR 25R TO STR 26L WL 156.1 AT AFT CARGO COMPARTMENT. REPLACED STRAP LOCATED BS 887 BTW STR 25R TO STR 26L WL 156.1 AT AFT
- [SDR SWAA2025101412580](https://openairdocs.org/sdr/SWAA2025101412580), Sep 8, 2025: SUPPORT. CORRODED. CORROSION ON SUPPORT ZEE LOCATED BTW BS 767 TO BS 847 LBL 22 WL 156.1 AT AFT CARGO COMPARTMENT. EVALUATED CORROSION ON SUPPORT ZEE LOCATED BTW BS 767 TO BS 847 
- [SDR SWAA2025101412593](https://openairdocs.org/sdr/SWAA2025101412593), Sep 8, 2025: WEB. CORRODED. CORROSION ON SHIELD WEB LOCATED BTW BS 767 TO BS 794.3 RBL 22 WL 156.1 AT AFT CARGO COMPARTMENT. REPLACED SHIELD WEB AND FASTENERS LOCATED BTW BS 767 TO BS 794.
- [SDR SWAA2025101412596](https://openairdocs.org/sdr/SWAA2025101412596), Sep 8, 2025: WEB. CORRODED. CORROSION ON WEB LOCATED BTW BS 767 TO BS 787 RBL 21 WL 156.1 AT AFT CARGO COMPARTMENT. REPLACED WEB LOCATED BTW BS 767 TO BS 787 RBL 21 WL 156.1 AT AFT CARGO C
- [SDR SWAA2025101412602](https://openairdocs.org/sdr/SWAA2025101412602), Sep 8, 2025: WEB. CRACKED. CRACK ON WEB LOCATED BTW BS 927 TO BS 947.5 AT LEVEL STR 25R AT AFT CARGO COMPARTMENT. REPLACED WEB ASSY AND FASTENER LOCATED BTW BS 927 TO BS 947.5 AT LEVEL ST
- [SDR SWAA2025101412586](https://openairdocs.org/sdr/SWAA2025101412586), Sep 8, 2025: SUPPORT ANGLE. CRACKED. CRACK ON SUPPORT ANGLE LOCATED BS 867 BTW STR 26L TO STR 27L AT AFT CARGO COMPARTMENT. REPLACED SUPPORT ANGLE LOCATED BS 867 BTW STR 26L TO STR 27L AT AFT CARGO
- [SDR SWAA2025101412587](https://openairdocs.org/sdr/SWAA2025101412587), Sep 8, 2025: SUPPORT ANGLE. CRACKED. CRACK ON SUPPORT ANGLE LOCATED BS 867 BTW STR 26L TO STR 27L AT AFT CARGO COMPARTMENT. FAULT RESOLVED IN OTHER FAULT SEE TTG8Q0151DJ3;[02] FAULT RESOLVED ON OTH
- [SDR SWAA2025101412614](https://openairdocs.org/sdr/SWAA2025101412614), Sep 8, 2025: ANGLE. CORRODED. CORROSION ON ANGLE LOCATED BS 787 BTW STR 24R TO STR 25R WL 156.5 AT AFT CARGO COMPARTMENT. REPLACED ANGLE LOCATED BS 787 BTW STR 24R TO STR 25R WL 156.5 AT AFT
- [SDR SWAA2025101412608](https://openairdocs.org/sdr/SWAA2025101412608), Sep 8, 2025: FITTING. CRACKED. CRACK ON FITTING LOCATED BS 947.5 AT LEVEL STR 26L AT AFT CARGO COMPARTMENT. REPLACED FITTING LOCATED BS 947.5 AT LEVEL STR 26L AT AFT CARGO COMPARTMENT. IAW SR
- [SDR SWAA2025101412584](https://openairdocs.org/sdr/SWAA2025101412584), Sep 8, 2025: SUPPORT ANGLE. CORRODED. CORROSION ON SUPPORT ANGLE LOCATED BS 947.5 BTW STR 25R TO STR25L AT AFT CARGO COMPARTMENT. REPLACED SUPPORT ANGLE LOCATED BS 947.5 BTW STR 25R TO STR25L AT AFT
- [SDR SWAA2025101312598](https://openairdocs.org/sdr/SWAA2025101312598), Sep 8, 2025: WEB. CORRODED. CORROSION ON WEB LOCATED BTW BS 747 TO BS 767 RBL 22 WL 156.1 AT AFT CARGO COMPARTMENT. REPLACED WEB ASSY AND FASTENERS LOCATED BTW BS 747 TO BS 767 RBL 22 WL 1
- [SDR SWAA2025101412354](https://openairdocs.org/sdr/SWAA2025101412354), Sep 7, 2025: WEB. DAMAGED. ELONGATED HOLE ON WEB - INTERCOSTAL LOCATED BS 492 AND S-26R AT FWD CARGO COMPARTMENT. REPLACED WEB - INTERCOSTAL AND FASTENERS LOCATED BS 492 AND S-26R AT FWD 
- [SDR SWAA2025101412358](https://openairdocs.org/sdr/SWAA2025101412358), Sep 7, 2025: WEB. CORRODED. CORROSION ON SHIELD WEB LOCATED BTW BS 847 TO BS 867 RBL 21 WL 156.1 AT AFT CARGO COMPARTMENT. REPLACED SHIELD WEB AND FASTENERS LOCATED BTW BS 847 TO BS 867 RB
- [SDR SWAA2025101412364](https://openairdocs.org/sdr/SWAA2025101412364), Sep 7, 2025: SUPPORT. CORRODED. CORROSION ON SUPPORT ZEE LOCATED BTW BS 727 TO BS 767 LBL 22 WL 156.1 AT AFT CARGO COMPARTMENT (20 POINTS). REPLACED SUPPORT ZEE LOCATED BTW BS727 TO BS847 LBL 
- [SDR SWAA2025100912351](https://openairdocs.org/sdr/SWAA2025100912351), Sep 7, 2025: SUPPORT ANGLE. CORRODED. CORRODED SUPPORT ANGLE LOCATED BS 500D, BETWEEN STRINGERS 26L - 26R, WL 156 IN FWD CARGO COMPARTMENT, REPLACED THE SUPPORT ANGLE IAW SRM 51-10-02-0G-0, ITEM 9, 
- [SDR SWAA2025100912359](https://openairdocs.org/sdr/SWAA2025100912359), Sep 7, 2025: WEB. CRACKED. CRACK ON WEB LOCATED BTW BS 1016 AND AFT BULKHEAD LEFT SIDE AT PAX CABIN. REPLACED WEB LOCATED BTW BS 1016 AND AFT BULKHEAD LEFT SIDE AT PAX CABIN. IAW SRM: 51-
- [SDR SWAA2025101411937](https://openairdocs.org/sdr/SWAA2025101411937), Sep 5, 2025: ANGLE. CRACKED. CRACK ON ANGLE - CLIP LOCATED BS400 AND STR26L FWD CARGO COMPARTMENT. REPLACED ANGLE - CLIP LOCATED BS400 AND STR26L FWD CARGO COMPARTMENT. IAW SRM 51-10-02-0G-
- [SDR SWAA2025101411936](https://openairdocs.org/sdr/SWAA2025101411936), Sep 5, 2025: ANGLE. CRACKED. CRACK ON ANGLE - CLIP LOCATED BS420 AND STR26L FWD CARGO COMPARTMENT. REPLACED ANGLE - CLIP LOCATED BS420 AND STR26L FWD CARGO COMPARTMENT. IAW B737-700 SRM 51-
- [SDR SWAA2025101411938](https://openairdocs.org/sdr/SWAA2025101411938), Sep 5, 2025: ANGLE. CRACKED. CRACK ON ANGLE - CLIP LOCATED BS500C AND STR26R FWD CARGO COMPARTMENT. REPLACED ANGLE - CLIP AND FASTENERS LOCATED BS500C AND STR26R FWD CARGO COMPARTMENT IAW B
- [SDR SWAA2025101411546](https://openairdocs.org/sdr/SWAA2025101411546), Sep 4, 2025: FLOORBEAM. CRACKED. CRACK BRAKE PANEL FLOOR STRUCTURE BS 540 AND LBL 2 AT PASSENGER CABIN. REPLACED BRAKE PANEL AND FASTENERS LOCATED FLOOR STRUCTURE LOCATED STA 540 AND BTW BL O T
- [SDR SWAA2025101411547](https://openairdocs.org/sdr/SWAA2025101411547), Sep 4, 2025: FLOORBEAM. CRACKED. CRACK BRAKE PANEL FLOOR STRUCTURE BS 540 AND RBL 2 AT PASSENGER CABIN. REPLACED BRAKE PANEL FLOOR STRUCTURE BS 540 AND RBL 2 AT PASSENGER CABIN IAW B737-700 SRM
- [SDR SWAA2025101411103](https://openairdocs.org/sdr/SWAA2025101411103), Sep 3, 2025: PRESSURE DECK. CRACKED. CRACK INDICATION ON HORIZONTAL PRESSURE DECK WEB LBL 31 STA 663 AT PASSANGER CABIN (1 E/A) . CRACK LENGTH APPROX 0.350 IN . PERFORMED PERMANENT REPAIR ON PRESSU
- [SDR SWAA2025101411107](https://openairdocs.org/sdr/SWAA2025101411107), Sep 3, 2025: LENS. BROKEN. BROKEN EMERGENCY EXIT LENS ASSY LOWERED CEILING AT AFT GALLEY AREA (1EA). REPLACED EMERGENCY EXIT LENS ASSY LOWERED CEILING AT AFT GALLEY AREA (1EA) IAW SOPM 20
- [SDR SWAA2025101410713](https://openairdocs.org/sdr/SWAA2025101410713), Sep 2, 2025: FRAME. CRACKED. CRACK FRAME LOCATED BS259.5 BTW STR8R TO STR9R AT PASSENGER CABIN. REPAIRED FRAME WEB AT BSTA 259.5 BTW WL 240 AND WL 280 AND RBL 20 AND RBL 50 IAW EA-25-153-02
- [SDR SWAA2025060978142](https://openairdocs.org/sdr/SWAA2025060978142), Jun 5, 2025: DOOR. CRACKED. RH MLG MIDDLE DOOR CRACKED AT LWR FWD POCKET CUT OUT. REMOVED RT MLG CENTER AND INNER DOORS PER AMM 32-13-11.
- [SDR SWAA2025012388581](https://openairdocs.org/sdr/SWAA2025012388581), Jan 23, 2025: LAMP. INOPERATIVE. R/H OVERWING EXIT EXTERIOR EMER LIGHT INOP.<[01] 01 - REMOVED AND REPLACED LAMP ON R/H OVERWING EXIT EXTERIOR LIGHT PER [AMM 33-51-04-960-801-NG (SLIDE/OVERWING
- [SDR SWAA2024120674557](https://openairdocs.org/sdr/SWAA2024120674557), Dec 5, 2024: LENS. OUT OF ADJUST. FWD. ENTRY DOOR (L-1) EMERGENCY EXIT SIDEWALL LENS FELL OFF<[01] REMOVED & REPLACED SIDEWALL EXIT SIGN ASSAY. IAW M/M. 33-51-06 & 33-51-14
- [SDR SWAA2024112671393](https://openairdocs.org/sdr/SWAA2024112671393), Nov 25, 2024: LAMP. INOPERATIVE. LEFT SIDE VERY AFT BY L2 DOOR OUTSIDE EMERGENCY LIGHT INOP.<[01] REPLACED AFT EMERGENCY LIGHT LAMP IAW AMM 33-51-04 OPS. CHECK GOOD.
- [SDR SWAA2024090331651](https://openairdocs.org/sdr/SWAA2024090331651), Aug 29, 2024: SUPPORT BRACKET. CRACKED. -KEEL BEAM FWD PNL 192E FWD LEFT SUPPORT BRACKET CRACKED.<[01] REMOVED AND REPLACED FWD LEFT SUPPORT BRACKET AT PANEL 192E PER SRM 51-40-02
- [SDR SWAA2024083031658](https://openairdocs.org/sdr/SWAA2024083031658), Aug 29, 2024: PLATE. BROKEN. AFT SERVICE DOOR LOWER PAN AFT UPPER SHOCK PLATE BROKEN.<[01] R/R AFT SERVICE DOOR LOWER PAN AFT LOWER SHOCK PLATE REF AMM 51-40-02.;[02] R/R AFT SERVICE DOOR L
- [SDR SWAA2024083031648](https://openairdocs.org/sdr/SWAA2024083031648), Aug 29, 2024: SUPPORT BRACKET. CRACKED. -KEEL BEAM FWD PNL 192E FWD RIGHT SUPPORT BRACKET CRACKED.<[01] REMOVED AND REPLACED FWD RIGHT SUPPORT BRACKET AT PANEL 192E PER SRM 51-40-02.
- [SDR SWAA2024022655796](https://openairdocs.org/sdr/SWAA2024022655796), Feb 24, 2024: GUARD. FAULTED. EMERGENCY LIGHT SWITCH ON OVERHEAD PANEL COVER WILL NOT STAY IN THE CLOSED POSITION<[01] REMOVED AND REPLACED SWITCH GUARD PER SIP
- [SDR SWAA2023121330221](https://openairdocs.org/sdr/SWAA2023121330221), Dec 11, 2023: ISOLATOR. CRACKED. AFT ENTRY DOOR FWD ISOLATOR CRACKED<[01] R&R AFT ENTRY DOOR FWD SLIDE MOUNT ISOLATOR IAW SRM 51-40-02.
- [SDR SWAA2023121330223](https://openairdocs.org/sdr/SWAA2023121330223), Dec 11, 2023: SEAL. CRACKED. R/H HORIZONTAL FWD SLIDER SEAL CRACKED<[01] REMOVED AND REPLACED SEAL PER AMM 53-31-31.;[02] REMOVED AND REPLACED SEAL PER AMM 53-31-31.
- [SDR SWAA2023121109142](https://openairdocs.org/sdr/SWAA2023121109142), Oct 10, 2023: STRINGER. CRACKED. CRACK; L/H WING; UPPER VENT STRINGER NO. 10 ASSY; AT INSPAR RIB 6 - MX FERRY FLIGHT-TLD) [TTG8Q00NXHZV] STEP 3 REQUIRES THAT AIRCRAFT IN REFERENCE TO 23-157-030

All 286: https://openairdocs.org/aircraft/N227WN/reports.md

## STCs that may be installed (OpenAirDocs) (37)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Boeing 737-7H4)

- [STC ST00555AT](https://openairdocs.org/stc/ST00555AT): Installation of Airshow 210 system. AIRCRAFT RECONFIG TECHNOLOGIES, LLC. Lists 737 Series
- [STC SA4842SW](https://openairdocs.org/stc/SA4842SW): Modification of air to air heat exchanger (P/N 182820-2 Series 2). Honeywell International Inc. Lists 737 Series
- [STC SA270NW](https://openairdocs.org/stc/SA270NW): Installation of modified seat. Aviation Technical Services. Lists 737 Series
- [STC ST01162NY](https://openairdocs.org/stc/ST01162NY): Installation of Literature Pockets. Magee Plastics Company. Lists 737 Series
- [STC SA2607SO](https://openairdocs.org/stc/SA2607SO): Installation of coffee maker P/N 416-1001-29. B/E Aerospace Inc. Lists 737 Series
- [STC SA2608SO](https://openairdocs.org/stc/SA2608SO): Installation of rail assembly, P/N 416-0201-15. B/E Aerospace Inc. Lists 737 Series
- [STC SA3058SO](https://openairdocs.org/stc/SA3058SO): Installation of coffee maker 416-0001-23 and rail assembly 416-0201-5. B/E Aerospace Inc. Lists 737 Series
- [STC ST01476AT](https://openairdocs.org/stc/ST01476AT): Installation of coffee maker. B/E Aerospace Inc. Lists 737 Series
- [STC ST01778AT](https://openairdocs.org/stc/ST01778AT): Installation of espresso maker p/n 3510-0066-01. B/E Aerospace Inc. Lists 737 Series
- [STC SA629GL](https://openairdocs.org/stc/SA629GL): Installation of Grimes galley, Model 1545LW unit 2 and unit 4. B/E Aerospace. Lists 737 Series
- [STC ST01332AT](https://openairdocs.org/stc/ST01332AT): Installation of Galley Service Carts. Champ International, Inc. Lists 737 Series
- [STC ST09870SC](https://openairdocs.org/stc/ST09870SC): Installation of Mechanical Window Shades. Lou Martin & Associates. Lists 737 Series
- [STC ST00033AT](https://openairdocs.org/stc/ST00033AT): Installation of a single Mode S system and provisions for a TCAS II system. General Aerospace, Inc. Lists 737 Series
- [STC SA4532NM](https://openairdocs.org/stc/SA4532NM): Installation of Coltech, CTD-80 ATSCALL, enabling company calling of selected aircraft via company selected radio. Avtech Corporation. Lists 737 Series
- [STC ST4532NM](https://openairdocs.org/stc/ST4532NM): Installation of Coltech CTD-80 ATSCALL, enabling company calling of selected aircraft via company selected radio. Avtech Corporation. Lists 737 Series
- [STC ST00774NY](https://openairdocs.org/stc/ST00774NY): Installation of a passenger cabin Liquor/beverage service cart P/N E500170. (757-222) (767-222) (727-222) (737 SERIES 222, 291, 322, 522) (747-100 SERIES 238B). Driessen Aircraft Interior Systems USA, Inc. Lists 737 Series
- [STC ST02052AT](https://openairdocs.org/stc/ST02052AT): Installation of a single Collins GNLU910A flight management system, along with global navigation satellite system sensor. General Aerospace, Inc. Lists 737 Series
- [STC SA02034AT](https://openairdocs.org/stc/SA02034AT): Manufacture of tray carrier, P/N 2282-506. BFE Services. Lists 737 Series
- [STC ST01968AT](https://openairdocs.org/stc/ST01968AT): Manufacture of inserts for galley stowage. JK Aerospace, Inc. Lists 737 Series
- [STC SA01916AT](https://openairdocs.org/stc/SA01916AT): Manufacture of Tray Carrier P/N 1839-501. BFE Services. Lists 737 Series
- [STC SA2534SO](https://openairdocs.org/stc/SA2534SO): Installation of window shades, acoustic panes and reveals. Magee Plastics Company. Lists 737 Series
- [STC ST179CH](https://openairdocs.org/stc/ST179CH): Installation of cargo container curtain. Plastic Composites Corp. Lists 737 Series
- [STC SA00056LA](https://openairdocs.org/stc/SA00056LA): Installation of Weber Coffeemaker, P/N 870130-415. Monogram Systems. Lists 737 Series
- [STC SA6090NM](https://openairdocs.org/stc/SA6090NM): Installation of emergency vision assurance system (EVAS). VisionSafe Corporation. Lists 737 Series
- [STC SA370NW](https://openairdocs.org/stc/SA370NW): Removal of passenger interior, installation of cargo compartment liners and cargo tie down equipment. Western Metal Products. Lists 737 Series
- [STC SA2589CE](https://openairdocs.org/stc/SA2589CE): Install Bennetts Seat Converter Stowage Compartment on passenger seat(s). John's Aircraft and Upholstery. Lists 737 Series
- [STC SA1029NW](https://openairdocs.org/stc/SA1029NW): Installation of a cargo system. Western Metal Products. Lists 737 Series
- [STC SA1258EA](https://openairdocs.org/stc/SA1258EA): Installation of Cosco model78-( ) child restraint system. (172M S/N 17263459 - 17267584). Miller Stuart R. Lists 737 Series
- [STC SA1052SO](https://openairdocs.org/stc/SA1052SO): Installation of GE battery P/N43B022RB36 in place of Marathon P/N CA-727-7, CA-727-20, or CA-27-20 batteries or SAFT P/N23180 batteries; or installation of GE battery P/N 43B020RB10 replacing Marathon P/N CA-727-7, CA-727-20 or CA-27-20 or SAFT P/N 23186 or 23180 batteries. General Electric Company. Lists 737 Series
- [STC SA1082NW](https://openairdocs.org/stc/SA1082NW) (historical): Installation of auxiliary fuel tanks in the aft cargo compartment. (737 series -2K9A). Rogerson ATS. Lists 737 Series

### Approved for the engine (CFM International CFM56 series)

- [STC SE04840NY](https://openairdocs.org/stc/SE04840NY): Installation of HarcoSemco Exhaust Gas Temperature (EGT) Electrical Harnesses in CFM56-7 engine. Kilroy Aviation LLC. Lists CFM56-7B20
- [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. Lists CFM56-7B20
- [STC SE00032EN](https://openairdocs.org/stc/SE00032EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 Fan/Booster Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00033EN](https://openairdocs.org/stc/SE00033EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 High Pressure Compressor Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00034EN](https://openairdocs.org/stc/SE00034EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 High Pressure Turbine Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00035EN](https://openairdocs.org/stc/SE00035EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 Low Pressure Turbine Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00822CH](https://openairdocs.org/stc/SE00822CH): Install AeroControlex P/N 2604880-001 variable stator feedback control cable and P/N 2604880-002 variable bleed valve feedback control cable on CFM International engines. AeroControlex Group TransDigm Inc. Lists CFM56-2

## Related

- Other Boeing 737-7H4 aircraft: https://openairdocs.org/model/boeing-737-7h4/aircraft.md
- The CFM International CFM56 series engine: https://openairdocs.org/engine/cfm-international-cfm56-series.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.