# N427WN: 2002 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: 29831
- Year built: 2002
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: April 24, 2002
- Certificate issued: November 13, 2002
- Expires: November 30, 2028
- Mode S code: A517A1
- 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=427WN
- Page: https://openairdocs.org/aircraft/N427WN

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/N427WN/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 N427WN.

## FAA accident and incident reports

None matched to N427WN.

## Service difficulty reports (287, 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 SWAA2025121250755](https://openairdocs.org/sdr/SWAA2025121250755), Dec 9, 2025: SLIDE. DETACHED. L1 DOOR SLIDE FELL OFF. REMOVED AND REPLACED IAW AMM 25-66-01.
- [SDR SWAA2025121244307](https://openairdocs.org/sdr/SWAA2025121244307), Dec 9, 2025: SLIDE. DETACHED. L1 DOOR SLIDE FELL OFF. REMOVED AND REPLACED IAW AMM 25-66-01.
- [SDR SWAA2025041023104](https://openairdocs.org/sdr/SWAA2025041023104), Apr 9, 2025: GIRT BAR. OUT OF ADJUST. L-2 DOOR SLIDE VELCRO FLAP OUT OF POSITION <[01]. RE-POSITIONED MANUAL INFLATE VELCRO FLAP IN POSITION PER MM 25-66-01 ON L-2 DOOR SLIDE.
- [SDR SWAA2025031705006](https://openairdocs.org/sdr/SWAA2025031705006), Mar 13, 2025: LAMP. INOPERATIVE. 1 EMERGENCY LIGHT INOP L1 DOOR ON WALL <[01]. RELAMPED L1 DOOR WALL LIGHT AND OPS CHECK GOOD IAW SWA B737-700 AMM 33-51-01-960-801. PO 1109688.1; [02] RELAMPED 
- [SDR SWAA2025031705005](https://openairdocs.org/sdr/SWAA2025031705005), Mar 13, 2025: BATTERY PACK. INOPERATIVE. COCKPIT EMERGENCY LIGHT INOP <[01]. CHARGED EMERGENCY LIGHT BATTERY PACKS AND COCKPIT EMERGENCY LIGHT OPS CHECK GOOD IAW SWA B737-700 AMM 33-51-06-610-802 AND A
- [SDR SWAA2025031705004](https://openairdocs.org/sdr/SWAA2025031705004), Mar 13, 2025: BATTERY PACK. INOPERATIVE. R1 DOOR EMERGENCY LIGHT OVERHEAD INOP <[01]. CHARGED EMERGENCY LIGHT BATTERY PACKS AND R1 DOOR EMERGENCY LIGHT OPS CHECK GOOD IAW SWA B737-700 AMM 33-51-06-610-
- [SDR SWAA2025031704457](https://openairdocs.org/sdr/SWAA2025031704457), Mar 11, 2025: HANDLE. LOOSE. L1 DOOR AIRFRAME SIDE ASSIST HANDLE FOUND LOOSE. <[01] L1 DOOR ASSIST HANDLE SECURED IAW B737-700 AMM 25-21-31. T8345J 27AUG25; [02] VERIFIED L1 DOOR ASSIST HAN
- [SDR SWAA2025031704458](https://openairdocs.org/sdr/SWAA2025031704458), Mar 11, 2025: HANDLE. LOOSE. L2 DOOR AIRFRAME SIDE ASSIST HANDLE FOUND LOOSE<[01]. L2 DOOR ASSIST HANDLE SECURED IAW B737-700 AMM 25-21-25. T8345J 27AUG25; [02] VERIFIED L2 DOOR ASSIST HAND
- [SDR SWAA2025031704456](https://openairdocs.org/sdr/SWAA2025031704456), Mar 11, 2025: HANDLE. LOOSE. R2 DOOR ASSIST HANDLES FOUND LOOSE<[01] R2 DOOR ASSIST HANDLES SECURED IAW B737-700 AMM 25-21-25.<BR>T8345J 27AUG25;[02] VERIFIED R2 DOOR ASSIST HANDLES SECURED
- [SDR SWAA2025011585500](https://openairdocs.org/sdr/SWAA2025011585500), Jan 14, 2025: DOOR. CRACKED. L/H MLG CENTER DOOR CRACKED NEAR LOWER FWD MOUNT<[01] REMOVER INNER AND CENTER LH MLG DOORS PER AMM 32-13-11<BR>OK TO CONTINUE PER CDL 32-10-3 AUTHORIZATION NUM
- [SDR SWAA2024121676096](https://openairdocs.org/sdr/SWAA2024121676096), Dec 11, 2024: LIGHT. INOPERATIVE. RH OVERWING EMERGENCY EXIT EXTERIOR EMERGENCY LIGHT INOP<[01] RELAMPED RH OVERWING EMERGENCY EXIT EXTERIOR LIGHT PER AMM 33-51-04. OPS CHECK GOOD AT THIS TIME.
- [SDR SWAA2024100744800](https://openairdocs.org/sdr/SWAA2024100744800), Oct 2, 2024: SNUBBER. INOPERATIVE. MAIN ENTRY DOOR ASSIST NOT WORKING. DOOR FALLS SHUT.<[01] R&R THE L1 DOOR SNUBBER THRU STEP G OF THE INSTALLATION PER AMM 52-11-51;[02] CW STEPS H FORWARD PER A
- [SDR SWAA2024062604656](https://openairdocs.org/sdr/SWAA2024062604656), Jun 22, 2024: CONTROL MODULE. FAULTED. PASSING 10;000 FEET; WITH GEAR HANDLE IN THE OFF POSITION; BOTH THE GEAR SAFE (GREEN) AND UNSAFE LIGHTS (RED) WERE ILLUMINATED. RAN QRH AND AND WITH THE GEAR HA
- [SDR SWAA2024041173540](https://openairdocs.org/sdr/SWAA2024041173540), Apr 11, 2024: SLIDE. OUT OF ADJUST. FLIGHT ATTENDANT SAYS FRONT ENTRY SLIDE PACKING IS COMING APART<[01] ADJUSTED SLIDE INSIDE SLIDE PACK IAW AMM CHPT. 25-66-01
- [SDR SWAA2024031864544](https://openairdocs.org/sdr/SWAA2024031864544), Mar 17, 2024: LIGHT. INOPERATIVE. R/H OVERWING EMERGENCY EXIT; AFT EMERGENCY LIGHT HAS MULTIPLE BULBS INOPERABLE.<[01] REMOVED; REPLACED; AND INSTALLED A NEW R/H OVERWING EMERGENCY EXIT; AFT EME
- [SDR SWAA2024032058869](https://openairdocs.org/sdr/SWAA2024032058869), Mar 4, 2024: VAPOR BARRIER. CRACKED. CRACK WING CENTER SECTION REAR SPAR BS 663 VAPOR BARRIER (WHEEL WELL FWD BULKHEAD) LEFT HAND WHELL WELL; BEHIND HYDRAULIC A FILTER. REF: TTG8Q00QXPJY<[01] VERIF
- [SDR SWAA2024032058314](https://openairdocs.org/sdr/SWAA2024032058314), Mar 2, 2024: FLOOR SUPPORT. CRACKED. EXPANSION LINK FLOOR SUPPORT AT BS 520 RBL 2 WL 205 IS CRACKED. (MARKED) EXPANSION LINK FLOOR SUPPORT AT BS 540 RBL 2 WL 205 IS CRACKED<[01] REMOVED AND REPLACE
- [SDR SWAA2024031557661](https://openairdocs.org/sdr/SWAA2024031557661), Feb 29, 2024: PANEL. CRACKED. CRACKED BREAK PANEL STA 540; BL0-LBL25; WL 208.<[01] VERIFIED STEP 1 IN PARTIAL; STEP 2 COMPLETE.;[02] REMOVED AND INSTALLED NEW BREAK PANEL STA 540; BL0-LBL25;
- [SDR SWAA2024031557662](https://openairdocs.org/sdr/SWAA2024031557662), Feb 29, 2024: PANEL. CRACKED. CRACKED BREAK PANEL STA 540; BL0-RBL25; WL 208.<[01] VERIFIED STEPS 1 IN PARTIAL; STEP 2 COMPLETE.;[02] REMOVED AND INSTALLED NEW BREAK PANEL STA 540; BL0-RBL25
- [SDR SWAA2024031557027](https://openairdocs.org/sdr/SWAA2024031557027), Feb 28, 2024: PRESSURE DECK. CRACKED. CRACK IN HORIZ PRESSURE DECK BS 664.5 WL 202 LBL 32 .5' IN LENGTH MARKED IN RED.<[01] VERIFIED STEPS 14 COMPLETE; STEP 4 IN PARTIAL.;[02] VERIFIED STEP 4;5;6 CO
- [SDR SWAA2024032056651](https://openairdocs.org/sdr/SWAA2024032056651), Feb 27, 2024: THRESHOLD. CRACKED. AFT CARGO BAY FORWARD CORNER THRESHOLD IS CRACKED<[01] VERIFIED STEPS 3;4 COMPLETE.;[02] VERIFIED STEP 6 COMPLETE.;[03] REMOVED ALL THE COATINGS FROM THE CORNER
- [SDR SWAA2024031556635](https://openairdocs.org/sdr/SWAA2024031556635), Feb 26, 2024: LENS. LOOSE. L/H EMERGENCY LIGHT LENSES ARE LOOSE ON OVERHEAD BINS 2; 7. REMOVED AND REINSTALLED L/H EMERGENCY LIGHT LENSES ON OVERHEAD BINS 3 AND 7 PER AMM SWA D633A101 STE
- [SDR SWAA2024031556636](https://openairdocs.org/sdr/SWAA2024031556636), Feb 26, 2024: LENS. LOOSE. R/H EMERGENCY LIGHT LENSES ARE LOOSE ON OVERHEAD BINS 3; 4. REMOVED AND REINSTALLED R/H EMERGENCY LIGHT LENSES ON OVERHEAD BINS 3 AND 4 PER AMM SWA D633A101 STE
- [SDR SWAA2024011741088](https://openairdocs.org/sdr/SWAA2024011741088), Jan 15, 2024: VAPOR BARRIER. CRACKED. CRACK IN VAPOR BARRIER LEFT HAND SIDE<[01] ACCOMPLISHED EA M-21-157-00675; NO FURTHER DEFECTS NOTED.
- [SDR SWAA2023122735281](https://openairdocs.org/sdr/SWAA2023122735281), Dec 25, 2023: SIGN. MISSING. EMERGENCY EXIT SIGN LOWER LEFT CORNER AT RIGHT OVERWING EXIT MISSING.<[01] INSTALLED NEW LOWER LEFT EMERGENCY EXIT SIGN AT RIGHT OVERWING EXIT IN REFERENCE TO A
- [SDR SWAA2023112824737](https://openairdocs.org/sdr/SWAA2023112824737), Nov 25, 2023: CIRCUIT BREAKER. POPPED. P-18-3-A10 CB 'LIGHTING EMERGENCY CHARGER LAFT' POPPED<[01] RESET C/B I/A/W AMM 20-60-05
- [SDR SWAA2023101911503](https://openairdocs.org/sdr/SWAA2023101911503), Oct 16, 2023: SLIDE. LOOSE. CAPT SIDE SLIDE APPEARS TO START UNPACKING ITSELF AND HANGING DOWN TO FLOOR.<[01] INSPECTED AFT ENTRY DOOR SLIDE PER 25-66-00. REATTACHED VELCRO ATTACHMENTS AS 
- [SDR SWAA2023050343398](https://openairdocs.org/sdr/SWAA2023050343398), Apr 29, 2023: LIGHT. OUT OF ADJUST. RIGHT OVERWING EXIT SIGN LENS NOT SECURE LOWER EXIT LIGHT LENS TAPED IN PLACE.<[01] C/W EA M-21-133-00720. OK TO CONTINUE ON TLD.
- [SDR SWAA2023040422857](https://openairdocs.org/sdr/SWAA2023040422857), Apr 1, 2023: LENS. OUT OF ADJUST. EMERGENCY LIGHT AIRCRAFT RIGHT ROW 16 LENS COVER MISSING LIGHT OPERATIONAL. INSTALLED EMER LIGHT LENS COVER OVER SET 16 DEF. REF AMM 33-51-03
- [SDR SWAA2023020901137](https://openairdocs.org/sdr/SWAA2023020901137), Feb 9, 2023: LIGHT. BROKEN. LEFT SIDE LOWER EXIT SIGN BROKEN<[01] REMOVED AND REPLACED LIGHT ASSY PER AMM 33-51-04.
- [SDR SWAA2023010587127](https://openairdocs.org/sdr/SWAA2023010587127), Jan 3, 2023: BATTERY PACK. NO TEST. BOTH FWD EMERGENCY LIGHT BATTERIE PACKS FAILED CAPACITY TEST. R & R BOTH FWD EMERGENCY LIGHT BATTERIE PACKS IAW AMM 33-51-06. ALL OPS CHECK GOOD
- [SDR SWAA2022121982839](https://openairdocs.org/sdr/SWAA2022121982839), Dec 17, 2022: FIRE DETECTOR. FALSE ACTIVATION. ON DESCENT, WHEEL WELL FIRE WARNING ILLUMINATED. AFTER QRH CHECKLIST, LIGHT REMAINED ILLUMINATED. TRIED A NEW WHEEL WELL OVERHEAT DETECTION BOX; NO HELP; FAULT 
- [SDR SWAA2022050301923](https://openairdocs.org/sdr/SWAA2022050301923), May 2, 2022: NONE. INOPERATIVE. FORWARD CABIN EMERGENCY LIGHTS INO 2022-165432 / [01] REPLACED BATTERY PACK (M1674) ON SERVICEABLE CONDITION P/N: D717-01-100SWA; S/N: BN 225213 IAW B373-700 AM
- [SDR SWAA2022050300728](https://openairdocs.org/sdr/SWAA2022050300728), Apr 29, 2022: LIGHT. INOPERATIVE. EMERGENCY LIGHT MID AND AFT AISLE INOP 2022-165423 / [01] REPLACED POWER SUPPLY-BATTERY PACK IAW B737NG AMM 33-51-06-960-805 (2E/A) AFT LH AND AFT RH AND TEST I
- [SDR SWAA2022050493536](https://openairdocs.org/sdr/SWAA2022050493536), Apr 12, 2022: PANEL. ELONGATED. ELONGATED HOLE ACCESS PANEL 193D (9EA) AT LOWER FUSELAGE 2022-165397 / [01] TOOL USED: CALIPER P/N:500-464 S/N:15331926 DUE DATE:28-SEP-22.;[02] TOOL USED: HOT 
- [SDR SWAA2022050492159](https://openairdocs.org/sdr/SWAA2022050492159), Apr 7, 2022: NONE. CRACKED. CRACK ACCESS PANEL 341B RIB CHORD LE STA 105.26 AT RT HORIZONTAL STABILIZER 2022-165385 / [01] REPLACED NEW RIB 105.26 AND FASTENERS LOCATED ACCESS PANEL 341B L
- [SDR SWAA2022050391175](https://openairdocs.org/sdr/SWAA2022050391175), Apr 4, 2022: INTERCOSTAL. BROKEN. BROKEN WEB - INTERCOSTAL LOCATED BS500C TO BS50D AND STR25R AT FWD CARGO COMPARTMENT 2022-165372 / [01] FAULT RAISED IN ERROR DESCRIPTION ENTER BY ERROR RAISED 
- [SDR SWAA2022050391176](https://openairdocs.org/sdr/SWAA2022050391176), Apr 4, 2022: INTERCOSTAL. BROKEN. BROKEN WEB - INTERCOSTAL LOCATED BS500D TO BS520 AND STR25R AT FWD CARGO COMPARTMENT 2022-165372 / [01] TOOL USED PN NORTEC 500D SN N500X1693P030456 DUE DATE 26
- [SDR SWAA2022050490901](https://openairdocs.org/sdr/SWAA2022050490901), Apr 4, 2022: INTERCOSTAL. CRACKED. CRACK WEB - INTERCOSTAL LOCATED BTW BS440 TO BS460 AT LEVEL STR 26L AT FWD CARGO COMPARTMENT 2022-165371 / [01] REPLACED WEB-INTERCOSTAL(BAFFLE) AND FASTENERS L
- [SDR SWAA2022050490632](https://openairdocs.org/sdr/SWAA2022050490632), Apr 2, 2022: SUPPORT ANGLE. CRACKED. CRACK ANGLE - SUPPORT LOCATED BS727 BULKHEAD AFT CARGO COMPARTMENT 2022-165321 / [01] REPLACED ANGLE SUPPORT LOCATED BS727 BULKHEAD AFT CARGO COMPARTMENT IAW B7
- [SDR SWAA2022050490633](https://openairdocs.org/sdr/SWAA2022050490633), Apr 2, 2022: SUPPORT ANGLE. CRACKED. CRACK ANGLE LOCATED BETWEEN BS907 TO BS927 AND STR25R TO 27R FWD POSITION AFT CARGO COMPARTMENT 2022-165318 / [01] TOOL USED CALIPER P/N: 700-113-10; S/N: 00193
- [SDR SWAA2022050490629](https://openairdocs.org/sdr/SWAA2022050490629), Apr 2, 2022: ANGLE. CRACKED. CRACK ANGLE LOCATED BETWEEN BS907 TO BS927 AND STR25R TO STR27R AFT POSITION AFT CARGO COMPARTMENT 2022-165319 / [01] TOOL USED CALIPER P/N: 700-113-10; S/N: 00
- [SDR SWAA2022050490628](https://openairdocs.org/sdr/SWAA2022050490628), Apr 2, 2022: SUPPORT. CORRODED. CORROSION SUPPORT ZEE LOCATED BETWEEN BS727E TO BS807; LBL21.00; WL156 AFT CARGO COMPARTMENT 2022-165320 / [01] REPLACED SUPPORT ZEE LOCATED BETWEEN BS727E TO B
- [SDR SWAA2022050490630](https://openairdocs.org/sdr/SWAA2022050490630), Apr 2, 2022: SUPPORT. CORRODED. CORROSION SUPPORT ZEE LOCATED BETWEEN BS727E TO BS767; RBL21.00; WL156 AFT CARGO COMPARTMENT 2022-165322 / [01] REPLACED SUPPORT ZEE LOCATED BETWEEN BS727 TO BS
- [SDR SWAA2022050490631](https://openairdocs.org/sdr/SWAA2022050490631), Apr 2, 2022: INTERCOSTAL. CORRODED. CORROSION WEB - INTERCOSTAL LOCATED BETWEEN BS767 TO BS794; RBL 21; WL156 AFT CARGO COMPARTMENT 2022-165323 / [01] TOOL USED: DIGITAL CALIPER P/N:500-196-30 S/N
- [SDR SWAA2022050490498](https://openairdocs.org/sdr/SWAA2022050490498), Apr 1, 2022: FRAME. CRACKED. CRACK FRAME BS 259.5 AT STR 8LH AT PASSENGER CABIN 2022-165308 / [01] TOOL USED EDDY CURRENT EQUIPMENT PN: NORTEC 500D; SN:N500X12101V022236; DUE DATE: 02-JUN-2
- [SDR SWAA2022050490497](https://openairdocs.org/sdr/SWAA2022050490497), Apr 1, 2022: ANGLE. CRACKED. CRACK SUPPORT ANGLE LOCATED TERMINAL FITTING ASSEMBLY AT VERTICAL STABILIZER 2022-165305 / [01] REPLACED SUPPORT ANGLE AND FASTENERS LOCATED TERMINAL FITTING AS
- [SDR SWAA2022050490244](https://openairdocs.org/sdr/SWAA2022050490244), Mar 31, 2022: STRINGER. CRACKED. CRACK STRINGER 25R BS540 AT FWD CARGO COMPARTMENT 2022-165291 / [01] TOOL USED THICKNESS GAGE: P/N: 45MG; S/N: 130060401; DUE DATE: 22-APR-22.;[02] TOOL USED PN
- [SDR SWAA2022050389882](https://openairdocs.org/sdr/SWAA2022050389882), Mar 30, 2022: STUB FRAME. CRACKED. CRACK ON STUB FRAME BST 303.9 AT LEVEL OF STRINGER 9RH FORWARD GALLEY DOOR SURROUND STRUCTURE 2022-165270 / [01] REPLACED STUB FRAME LOCATED ON BS 303.9 AT LEVE
- [SDR SWAA2022050489881](https://openairdocs.org/sdr/SWAA2022050489881), Mar 30, 2022: STRINGER. CRACKED. CRACK STRINGER 15L LOCATED BETWEEN BS294.5 TO BS303.9 AT PASSENGER CABIN 2022-165275 / [01] TOOL USED: ULTRASONIC EQUIPMENT P/N: 45MG; S/N: 130060401; DUE DATE:

All 287: https://openairdocs.org/aircraft/N427WN/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

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