# N474WN: 2004 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: 33861
- Year built: 2004
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: July 23, 2004
- Certificate issued: August 24, 2004
- Expires: February 29, 2028
- Mode S code: A5D1F7
- 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=474WN
- Page: https://openairdocs.org/aircraft/N474WN

From the FAA registry file of October 22, 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/N474WN/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 N474WN.

## FAA accident and incident reports

None matched to N474WN.

## Service difficulty reports (326, 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 SWAA2026101285979](https://openairdocs.org/sdr/SWAA2026101285979), Oct 8, 2026: BATTERY PACK. NO TEST. AFT LT EMERGENCY BATTERY PACK M1673 FAILED CAPACITY CHECK. R & R EMERGENCY BATTERY PACK PER AMM 33-51-06
- [SDR SWAA2026101228340](https://openairdocs.org/sdr/SWAA2026101228340), Oct 8, 2026: BRACKET. CRACKED. WING TRAILING EDGE PANEL UPPER SHELF BRACKET CRACKED. REMOVED UPPER SHELF BRACKET AND INSTALLED BULB ON NEW COMPONENT. PAINTED AND INSTALLED PER SRM 51-40-02 & 
- [SDR SWAA2026052606297](https://openairdocs.org/sdr/SWAA2026052606297), May 25, 2026: CONTROL MODULE. OVERHEATED. NUMBER 2 ENGINE OVERHEAT LIGHT ON; ON FIRE PANEL DURING CLIMB OUT. NO OTHER ABNORMAL ENGINE INDICATIONS. R&R ENGINE & APU FIRE DETECTION CONTROL MODULE PER FIM 
- [SDR SWAA2026052004872](https://openairdocs.org/sdr/SWAA2026052004872), May 20, 2026: SHUTOFF VALVE. LEAKING. DURING CLIMB WE RECIEVED A M/C LIGHT OVHT/DEL ASSOCIATED WITH NR 2 ENGINE OVERHEAT LIGHT FOLLOWED THE QRC FOLLOWED BY THE QRH THE LIGHT EXTINGUISH ONCE WE BROUG
- [SDR SWAA2026051394193](https://openairdocs.org/sdr/SWAA2026051394193), Apr 30, 2026: PANEL. DELAMINATED. LEFT HORIZONTAL STAB TIP PANEL 335A DELAMINATED AND CRACKED ALONG UPPER EDGE. RECEIVED NEW LT HORIZONTAL STAB TIP PANEL 335A. THE NEW TIP WILL BE CLOSED ON FAUL
- [SDR SWAA2026051394194](https://openairdocs.org/sdr/SWAA2026051394194), Apr 30, 2026: PLATE. CRACKED. WIGGLE PLATE ON LT WING REAR SPAR AT ORSS 434 CRACKED. REMOVED AND REPLACED WIGGLE PLATE ON LT WING REAR SPAR AT ORSS 434 IAW SRM 51-40-02-0G-0, AND AIPC 57-50-
- [SDR SWAA2026051393523](https://openairdocs.org/sdr/SWAA2026051393523), Apr 27, 2026: SEAT TRACK. CORRODED. CORROSION FOUND ON PAX SEAT TRACK LBL 25, WL 208, BS 500A+8 IN WELL, BS 500C IN WELL, BS 500D+10 IN WELL. SEAT TRACK REPLACED FROM BS 480-520 TO BE ACCOMPLISHED
- [SDR SWAA2026051393520](https://openairdocs.org/sdr/SWAA2026051393520), Apr 27, 2026: SEAT TRACK. CORRODED. CORROSION FOUND ON PAX SEAT TRACK LBL 45, WL 208, BS 500+7 ON CROWN, BS 500A+8 IN WELL, BS 500C IN WELL, BS 500C+10 IN WELL. THE SEAT TRACK WILL BE REPLACED FRO
- [SDR SWAA2026051392224](https://openairdocs.org/sdr/SWAA2026051392224), Apr 23, 2026: SLIDE. LOOSE. FWD ENTRY DOOR SLIDE IS NOT SECURE IN SLIDE SHROUD. FWD ENTRY SLIDE DOOR SECURED IN SLIDE SHROUD IAW AMM 25-66-01-340-001.
- [SDR SWAA2026032482729](https://openairdocs.org/sdr/SWAA2026032482729), Mar 23, 2026: SLIDE. OUT OF POSITION. FWD ENTRY DOOR WAS CRACKED OPEN AND THE ESCAPE SLIDE FELL OUT OF THE CONTAINER BUT DID NOT DEPLOY. INSPECTED AND REINSTALLED EMERGENCY ESCAPE SLIDE PER MT 725-6
- [SDR SWAA2025093018990](https://openairdocs.org/sdr/SWAA2025093018990), Sep 28, 2025: CHARGER. FAILED. FOUND C/B P18-3 B10 TRIPPED; RESET NO HELP. AD-D717-01-100SWA. REPLACED AFT BATTERY CHARGER ANF BATTERY. EXPIRES (25NOV2025) OPS CHECK GOOD. REF AMM 33-51-06.
- [SDR SWAA2025093019675](https://openairdocs.org/sdr/SWAA2025093019675), Sep 28, 2025: BATTERY. INOPERATIVE. FOUND CIRCUIT BREAKER P18-3 B10 TRIPPED, RESET NO HELP. REPLACED AFT BATTERY CHARGER ANF BATTERY. OPS CHECK GOOD. REF AMM 33-51-06.
- [SDR SWAA2025093018991](https://openairdocs.org/sdr/SWAA2025093018991), Sep 28, 2025: CIRCUIT BREAKER. TRIPPED. EMERGENCY LIGHTS CIRCUIT BREAKER P18-3 B10 TRIPPED. CONFIRMED M1672 FAILED.
- [SDR SWAA2025081199341](https://openairdocs.org/sdr/SWAA2025081199341), Aug 7, 2025: SLIDE. LOOSE. CREW REPORTS FWD GIRT BAR WILL NOT STAY SECURED WHEN OPENING FWD SERVICE DOOR. REMOVED AND REPACKED FWD SERVICE EMERGENCY ESCAPE SLIDE PER MT 725-61-06.
- [SDR SWAA2025072493940](https://openairdocs.org/sdr/SWAA2025072493940), Jul 21, 2025: GUIDE ARM. OUT OF ADJUST. FWD SERVICE DOOR HANDLE UNSEATED ON TAXI IN. ADJUSTED FWD SERVICE DOOR GUIDE ARM TO INCREASE TENSION OPEN & CLOSE FORCE IAW AMM 52-41-00. OPS CHECKED GOOD.
- [SDR SWAA2025050667021](https://openairdocs.org/sdr/SWAA2025050667021), May 3, 2025: SKIN. DELAMINATED. LH INBD MAIN FLAP TE WEDGE IS DELAMINATED. LOCATED AND DRILLED NEW -603 WEDGE ASSY PER SRM 51-40-02; TREATED AND PRIMED BARE METAL PER SRM 51-20-01. APPLIED TOP
- [SDR SWAA2025042958016](https://openairdocs.org/sdr/SWAA2025042958016), Apr 25, 2025: SKIN. DELAMINATED. L/H WING INBOARD TRAILING EDGE MAIN FLAP LOWER SKIN IS DELAMINATED 6.90 WIDE AND 3.70 LONG. DELAMINATED AREA STARTS 2.45 IN FROM OUTBOARD EDGE AND GOES THROUGH 
- [SDR SWAA2025031003180](https://openairdocs.org/sdr/SWAA2025031003180), Mar 8, 2025: POWER SUPPLY. INOPERATIVE. ROW 1 AND 2 EMERGENCY LIGHTS ON FO SIDE INOP <[01]. REMOVED AND REPLACED FWD RH EMER LIGHT POWER SUPPLY IAW AMM 33-51-06; OPS CHECK GOOD.
- [SDR SWAA2024121676027](https://openairdocs.org/sdr/SWAA2024121676027), Dec 11, 2024: HANDLE. LOOSE. R1 DOOR HANDLE CAM LOOSE.<[01] RE-SECURED R1 DOOR HANDLE CAM REF AMM 52-41-00.
- [SDR SWAA2024082628050](https://openairdocs.org/sdr/SWAA2024082628050), Aug 20, 2024: LAMP. INOPERATIVE. RH AFT SERVICE DOOR EMERGENCY LIGHT OUT<[01] 01 - REMOVED AND REPLACED PER [AMM 33-51-04-960-801-NG (SLIDE/OVERWING LIGHT - LAMP REPLACEMENT - PERMANENT)]
- [SDR SWAA2024071813673](https://openairdocs.org/sdr/SWAA2024071813673), Jul 18, 2024: BRACKET. CRACKED. AFT SERVICE DOOR LOWER PAN IS CRACKED. R & R AFT SERVICE DOOR LOWER PAN AFT RH BRACKET REF AMM 20-50-11.
- [SDR SWAA2024053090591](https://openairdocs.org/sdr/SWAA2024053090591), May 28, 2024: UNKNOWN. ODOR. ACRID ODOR IN FORWARD CABIN AT LEVEL OFF ALTITUDE AN NO ENGINE ANOMALIES; NO PRESSURIZATIONPROBLEMS. WE DEPLOYED PAX O2 MASKS MANUALLY<[01] PERFORMED CONDITIONA
- [SDR SWAA2024052389047](https://openairdocs.org/sdr/SWAA2024052389047), May 23, 2024: COVER. MISSING. EXIT LIGHT COVER ON RIGHT SIDEWALL AT EMERGENCY EXIT ROW MISSING<[01] REPLACED MISSING LIGHT COVER PER AMM 20-50-11
- [SDR SWAA2024052284858](https://openairdocs.org/sdr/SWAA2024052284858), May 13, 2024: BULB. INOPERATIVE. R/H GROUND ILLUMINATION EMERGENCY EXIT LIGHT INOP<[01] REPLACED BULB AT L548 R/H GROUND ILLUMINATION EMERGENCY EXIT LIGHT. LIGHT STILL INOP. IAW AMM 33-51-04-96
- [SDR SWAA2024052284857](https://openairdocs.org/sdr/SWAA2024052284857), May 13, 2024: BULB. INOPERATIVE. EMERGENCY EXIT LIGHT AFT OF R/H OWE INTERIOR HAS INOP BULBS<[01] REPLACED EMERGENCY EXIT BULBS LIGHT AT AFT OF R/H OWE INTERIOR. PERFORMED OP CHECK GOOD. IAW AM
- [SDR SWAA2024052284856](https://openairdocs.org/sdr/SWAA2024052284856), May 13, 2024: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHT IN AFT GALLEY; AFT OF LEFT DOOR HAS INOP BULBS<[01] REPLACED BULBS AND GOOD TEST PERFORMED AT EMERGENCY EXIT LIGHT IN AFT GALLEY; AFT OF LE
- [SDR SWAA2024052281441](https://openairdocs.org/sdr/SWAA2024052281441), May 1, 2024: ANGLE. CRACKED. R/W I/B FIXED L/E UPPER SKIN ANGLE FASTENER HOLE IS CRACKED AT KRAS 221<[01] REMOVED AND REPLACED ANGLE IAW SRM 51-40-02-0G-0 AND DWG. 116A4008.
- [SDR SWAA2024052280347](https://openairdocs.org/sdr/SWAA2024052280347), Apr 28, 2024: CARGO TRACK. CORRODED. ACCOMPLISH REPAIR ON ACB RAIL STA 727D+5 LBL 8 WL 156. REF: CORROSION ON AFT CARGO COMPARTMENT FLOOR RAIL AT STA 727C+6; 727D+5; & 747+5; LBL 8; WL 156. [TTG8Q0
- [SDR SWAA2024051577829](https://openairdocs.org/sdr/SWAA2024051577829), Apr 21, 2024: BAFFLE. CRACKED. FWD CARGO BAY BAFFLE CLIP CRACKED BS 500B AFT SIDE LBL25<[01] REMOVED AND REPLACED CLIP IAW SRM 51-40-02 AND DWG 143A7505 REV A;[02] VERIFIED ALL STEPS AND CORR
- [SDR SWAA2024052276864](https://openairdocs.org/sdr/SWAA2024052276864), Apr 18, 2024: ATTACH FITTING. CRACKED. FWD CARGO BAY BAFFLE ATTACH CLIP CRACKED BS 500B FWD SIDE LBL 25<[01] REMOVED AND REPLACED CLIP IAW SRM 51-40-02 AND DWG 143A7505 REV;[02] VERIFIED ALL STEPS AN
- [SDR SWAA2024052276165](https://openairdocs.org/sdr/SWAA2024052276165), Apr 17, 2024: SUPPORT ANGLE. CORRODED. CORROSION ON AFT CARGO COMPARTMENT BS 907 SIDEWALL LINING SUPPORT ANGLE RBL 24 WL 166<[01] REMOVED AND REPLACED FRAME SPLICE AT BS 907; BETWEEN STR 24R AND STR 
- [SDR SWAA2024052276453](https://openairdocs.org/sdr/SWAA2024052276453), Apr 17, 2024: SUPPORT ANGLE. CRACKED. CRACK AT SUPPORT ANGLE STA-685+10'' RBL-25 WL-208<[01] UPDATED MEASUREMENT TABLE.;[02] INSTALLED NEW BRACKET AT BS 685+10'; RBL 25; WL 204 PER SRM 51-40-02-0G-0
- [SDR SWAA2024052275414](https://openairdocs.org/sdr/SWAA2024052275414), Apr 16, 2024: SUPPORT. CORRODED. CORROSION ON AFT CARGO COMPARTMENT FLOOR TO SIDEWALL SUPPORT FROM STA 727+4 TO STA 767; RBL 22; WL 156.<[01] REMOVED AND REPLACED ACB FWD RH SIDEWALL SUPPORT IA
- [SDR SWAA2024052275417](https://openairdocs.org/sdr/SWAA2024052275417), Apr 16, 2024: CARGO TRACK. CORRODED. CORROSION ON AFT CARGO COMPARTMENT FLOOR RAIL AT STA 767+5 AND 727D+; LBL 12.<[01] REPAIRED DAMAGED AREA OF ACB RAIL STA 767+5 LBL 12 IAW SRM 53-00-53-2R-2
- [SDR SWAA2024052275418](https://openairdocs.org/sdr/SWAA2024052275418), Apr 16, 2024: CARGO TRACK. CORRODED. CORROSION ON AFT CARGO COMPARTMENT FLOOR RAIL AT STA 727C+6; 727D+5; & 747+5; LBL 8; WL 156.<
- [SDR SWAA2024052275421](https://openairdocs.org/sdr/SWAA2024052275421), Apr 16, 2024: CARGO TRACK. CORRODED. CORROSION ON AFT CARGO COMPARTMENT FOOR RAIL AT STA 727+9; 727+13; 727B+3; 727D+5; 767+5; WL 156; LBL 3.<[01] OPEN STEP 4 TO PARTIAL;[02] CORECTED DAMAGE REMOVA
- [SDR SWAA2024052275422](https://openairdocs.org/sdr/SWAA2024052275422), Apr 16, 2024: FRAME ANGLE. CORRODED. CORROSION ON STA 727D FRAME INNER CHORD AT LBL 26 AND 33; WL 159.<[01] UPON FURTHER INVESTIGATION; CORROSION FOUND TO BE LOCATED ON SIDEWALL LINING SUPPORT ANGL
- [SDR SWAA2024052275423](https://openairdocs.org/sdr/SWAA2024052275423), Apr 16, 2024: CARGO TRACK. CORRODED. CORROSION ON AFT CARGO COMPARTMENT RBL 8 FLOOR RAIL AT STA 727D+5 AND 767+5; WL 156.<[01] EDIT TO STEP 2; REMAINING THICKNESS OF .053';[02] OPENED STEP 2 TO PAR
- [SDR SWAA2024052275424](https://openairdocs.org/sdr/SWAA2024052275424), Apr 16, 2024: WEB. CORRODED. CORROSION ON AFT CARGO COMPARTMENT DOOR CUT-OUT SUB-THRESHOLD WEB FROM STA 787+4 TO STA 827+5; RBL 24-27; WL 156. CORECTION: WATER LINE IS 156.<[01] VERIFIED;[0
- [SDR SWAA2024052275407](https://openairdocs.org/sdr/SWAA2024052275407), Apr 16, 2024: SUPPORT. CORRODED. CORROSION ON AFT CARGO COMPARTMENT AFT BULKHEAD SUPPORT FROM LBL 8 TO RBL 19 STA 947; WL 166.<[01] REMOVED AND REPLACED AFT CARGO COMPARTMENT AFT BULKHEAD SUPPO
- [SDR SWAA2024052275405](https://openairdocs.org/sdr/SWAA2024052275405), Apr 16, 2024: SUPPORT. CORRODED. CORROSION ON AFT CARGO COMPARTMENT R/H AFT BULKHEAD SUPPORT AT STA 947; RBL 22; WL 166.<[01] REMOVED AND REPLACED AFT CARGO COMPARTMENT R/H AFT BULKHEAD SUPPORT
- [SDR SWAA2024052275408](https://openairdocs.org/sdr/SWAA2024052275408), Apr 16, 2024: CARGO TRACK. CORRODED. CORROSION ON AFT CARGO COMPARTMENT TIE-DOWN TRACK WELL AT STA 847+2 AND 787+6; RBL 14; WL 156.<[01] REMOVED AND REPLACED ACB TIE-DOWN TRACK ASSEMBLY FROM STA 72
- [SDR SWAA2024052275409](https://openairdocs.org/sdr/SWAA2024052275409), Apr 16, 2024: SHIELD. CORRODED. CORROSION ON AFT CARGO COMPARTMENT DOOR CUT-OUT AFT SHIELD AT STA 847+2; RBL 19.5; WL 158.<[01] REMOVED AND REPLACED NEW ACB AFT SHIELD IAW SRM 51-40-02 AND DWG
- [SDR SWAA2024052275406](https://openairdocs.org/sdr/SWAA2024052275406), Apr 16, 2024: CARGO TRACK. CORRODED. CORROSION ON AFT CARGO COMPARTMENT FLOOR SUPPORT RAIL FROM STA 727+4 TO STA 807+12; RBL 14; WL 156.<[01] REMOVED CORROSION AREA FOUND OUT OF LIMITS TRACK GOING 
- [SDR SWAA2024052275410](https://openairdocs.org/sdr/SWAA2024052275410), Apr 16, 2024: SIDEWALL SUPPORT. CORRODED. CORROSION ON AFT CARGO COMPARTMENT FLOOR TO SIDEWALL SUPPORT FROM STA 727+4 TO 847; LBL 22; WL 156.<[01] REMOVED AND REPLACED AFT CARGO COMPARTMENT FLOOR TO SID
- [SDR SWAA2024052275411](https://openairdocs.org/sdr/SWAA2024052275411), Apr 16, 2024: CARGO TRACK. CORRODED. CORROSION ON AFT CARGO COMPARTMENT TIE-DOWN TRACK WELL AT STA 787+3; LBL 17; WL156.<
- [SDR SWAA2024052275412](https://openairdocs.org/sdr/SWAA2024052275412), Apr 16, 2024: SHIELD. CORRODED. CORROSION ON AFT CARGO COMPARTMENT DOOR CUT-OUT FWD SHIELD FROM STA 767 TO 787; RBL 23; WL 156.<[01] REMOVED AND REPLACED ACB DOOR CUT-OUT FWD SHIELD FROM BS 76
- [SDR SWAA2024052275413](https://openairdocs.org/sdr/SWAA2024052275413), Apr 16, 2024: CARGO TRACK. CORRODED. CORROSION ARROUND AFT CARGO COMPARTMENT LBL 17 FLOOR TRACK FASTENER HOLES FROM STA 727+10 TO 767+4; WL 156.<[01] AFT CARGO COMPARTMENT LBL 17 FLOOR TRACK GOING 
- [SDR SWAA2024052275416](https://openairdocs.org/sdr/SWAA2024052275416), Apr 16, 2024: SIDEWALL SUPPORT. CORRODED. CORROSION ON AFT CARGO COMPARTMENT FLOOR TO SIDEWALL SUPPORT AT STA 887+4; RBL 22; WL 164.<[01] REMOVED CORROSION AT AFT CARGO COMPARTMENT FLOOR TO SIDEWALL SUP
- [SDR SWAA2024052275419](https://openairdocs.org/sdr/SWAA2024052275419), Apr 16, 2024: FRAME. CORRODED. CORROSION ON AFT CARGO COMPARTMENT STA 907 FRAME INNER CHORD AT RBL 29 AND 24; WL 166.<[01] UPON FURTHER INVESTIGATION; CORROSION FOUND TO BE LOCATED ON SIDEWAL

All 326: https://openairdocs.org/aircraft/N474WN/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.