# N39726: 1999 Boeing 737-724

- Status: Valid registration
- Airframe: [Boeing 737-724](https://openairdocs.org/model/boeing-737-724) (registry code 13844BY, 149 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: 28796
- Year built: 1999
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: July 9, 1999
- Certificate issued: June 8, 2023
- Expires: June 30, 2030
- Mode S code: A49F87
- Registered owner: [United Airlines Inc](https://openairdocs.org/faa-owner/UNITED%20AIRLINES%20INC)
- Location: [Chicago, IL](https://openairdocs.org/faa-place/IL/Chicago)
- Owner type: Corporation
- Owner's area on the map: 41.8813° N, 87.6375° W: Placed by OpenAirDocs at the center of ZIP code 60606, 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=39726
- Page: https://openairdocs.org/aircraft/N39726

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): 378 in force

### Matched by airframe (Boeing 737-724)

- [AD 2026-20-14](https://openairdocs.org/ad/2026-20-14): Stabilizers · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Nov 23, 2026
- [AD 2026-20-13](https://openairdocs.org/ad/2026-20-13): Equipment/furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Nov 23, 2026
- [AD 2026-13-13](https://openairdocs.org/ad/2026-13-13): Navigation · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 9 more. Effective Jul 1, 2026
- [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026
- [AD 2025-25-04](https://openairdocs.org/ad/2025-25-04): Equipment/furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 6 more. Effective Jan 16, 2026
- [AD 2025-24-02](https://openairdocs.org/ad/2025-24-02): Landing gear · Boeing 737-700 Series, 737-800 Series, 737-900 Series and 1 more. Effective Dec 10, 2025
- [AD 2025-19-12](https://openairdocs.org/ad/2025-19-12): Landing Gear · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Nov 6, 2025
- [AD 2025-15-01](https://openairdocs.org/ad/2025-15-01): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Aug 25, 2025
- [AD 2025-07-03](https://openairdocs.org/ad/2025-07-03): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective May 13, 2025
- [AD 2025-04-03](https://openairdocs.org/ad/2025-04-03): Exhaust · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 8, 2025
- [AD 2025-04-02](https://openairdocs.org/ad/2025-04-02): Powerplant · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 8, 2025
- [AD 2025-04-01](https://openairdocs.org/ad/2025-04-01): Powerplant · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 8, 2025
- [AD 2025-02-07](https://openairdocs.org/ad/2025-02-07): Navigation · Modification of Rockwell Collins, Inc. Multi-Mode Receiver (STC ST01883WI or 4 others). Effective Mar 17, 2025
- [AD 2024-18-07](https://openairdocs.org/ad/2024-18-07): Equipment/Furnishing · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Nov 12, 2024
- [AD 2024-16-10](https://openairdocs.org/ad/2024-16-10): Instruments · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Oct 28, 2024
- [AD 2024-13-02](https://openairdocs.org/ad/2024-13-02): Oxygen · Boeing 737-8, 737-9, 737-8200 and 3 more. Effective Jul 25, 2024
- [AD 2024-06-01](https://openairdocs.org/ad/2024-06-01): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective May 22, 2024
- [AD 2024-01-06](https://openairdocs.org/ad/2024-01-06): Fuselage · Boeing 737-600 Series, 737-700 Series and 737-800 Series. Effective Mar 7, 2024
- [AD 2023-13-05](https://openairdocs.org/ad/2023-13-05): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Oct 27, 2023
- [AD 2023-13-12](https://openairdocs.org/ad/2023-13-12): Oxygen · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 17 more. Effective Sep 5, 2023
- [AD 2023-12-13](https://openairdocs.org/ad/2023-12-13): Navigation · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 9 more. Effective Jun 21, 2023
- [AD 2023-06-15](https://openairdocs.org/ad/2023-06-15): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-800 Series and 2 more. Effective May 30, 2023
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2023-04-17](https://openairdocs.org/ad/2023-04-17): Fuel · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective May 1, 2023
- [AD 2022-24-09](https://openairdocs.org/ad/2022-24-09): Air conditioning · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 12 more. Effective Jan 26, 2023
- [AD 2022-18-13](https://openairdocs.org/ad/2022-18-13): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Oct 31, 2022
- [AD 2022-13-18](https://openairdocs.org/ad/2022-13-18): Oxygen · Boeing 737-700 Series, 737-800 Series, 747-8 Series and 3 more. Effective Sep 15, 2022
- [AD 2022-15-08](https://openairdocs.org/ad/2022-15-08): Information systems · Airbus A318-111, A318-112, A319-111 and 49 more. Effective Aug 12, 2022
- [AD 2022-11-13](https://openairdocs.org/ad/2022-11-13): Fuselage · Boeing 737-700 Series, 737-800 Series and 737-900ER Series. Effective Aug 3, 2022
- [AD 2022-06-06](https://openairdocs.org/ad/2022-06-06): Flight controls · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective Jun 16, 2022
- [AD 2021-26-17](https://openairdocs.org/ad/2021-26-17): Equipment/furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Feb 15, 2022
- [AD 2021-18-17](https://openairdocs.org/ad/2021-18-17): Auto flight · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Dec 20, 2021
- [AD 2021-21-09](https://openairdocs.org/ad/2021-21-09): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Dec 13, 2021
- [AD 2021-11-24](https://openairdocs.org/ad/2021-11-24): Fuel · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Jul 20, 2021
- [AD 2021-08-04](https://openairdocs.org/ad/2021-08-04): Oxygen · Boeing 737-200 Series, 737-300 Series, 737-400 Series and 23 more. Effective May 26, 2021
- [AD 2021-02-14](https://openairdocs.org/ad/2021-02-14): Fuel · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Mar 30, 2021
- [AD 2021-02-13](https://openairdocs.org/ad/2021-02-13): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Mar 30, 2021
- [AD 2021-01-04](https://openairdocs.org/ad/2021-01-04): Doors · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective Mar 29, 2021
- [AD 2021-01-07](https://openairdocs.org/ad/2021-01-07): Air Distribution System · Boeing 737-700 Series. Effective Mar 9, 2021
- [AD 2020-21-02](https://openairdocs.org/ad/2020-21-02): Fire protection · Airbus Canada Limited Partnership BD-500-1A10, BD-500-1A11, A330-201 and 45 more. Effective Nov 19, 2020
- [AD 2020-18-13](https://openairdocs.org/ad/2020-18-13): Fuel · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Oct 29, 2020
- [AD 2020-16-51](https://openairdocs.org/ad/2020-16-51): Pneumatic · Boeing 737-300 Series, 737-400 Series, 737-500 Series and 6 more. Effective Aug 26, 2020
- [AD 2020-03-10](https://openairdocs.org/ad/2020-03-10): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective Mar 27, 2020
- [AD 2019-25-55](https://openairdocs.org/ad/2019-25-55): Equipment/ Furnishings · Boeing 737-300 Series, 737-400 Series and 737-700 Series with STC ST01566LA or 2 others. Effective Jan 21, 2020
- [AD 2019-19-10](https://openairdocs.org/ad/2019-19-10): Fuel · Boeing 737-300 Series, 737-400 Series, 737-500 Series and 21 more. Effective Jan 16, 2020
- [AD 2019-18-03](https://openairdocs.org/ad/2019-18-03): Exhaust · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective Oct 3, 2019
- [AD 2019-14-02](https://openairdocs.org/ad/2019-14-02): Hydraulic power · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 11 more. Effective Aug 27, 2019
- [AD 2019-11-06](https://openairdocs.org/ad/2019-11-06): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Jul 17, 2019
- [AD 2019-03-07](https://openairdocs.org/ad/2019-03-07): Wings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Mar 29, 2019
- [AD 2019-01-03](https://openairdocs.org/ad/2019-01-03): Landing Gear · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Mar 19, 2019

### 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 2023-09-04](https://openairdocs.org/ad/2023-09-04) (historical): Equipment/furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective Jun 29, 2023
- [AD 2022-05-04](https://openairdocs.org/ad/2022-05-04) (historical): Navigation · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 9 more. Effective Feb 24, 2022
- [AD 2021-14-20](https://openairdocs.org/ad/2021-14-20) (historical): Cabin Altitude Pressure Switches · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 12 more. Effective Jul 20, 2021
- [AD 2021-09-06](https://openairdocs.org/ad/2021-09-06) (historical): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Jun 8, 2021
- [AD 2020-03-20](https://openairdocs.org/ad/2020-03-20) (historical): Navigation · Modification of Rockwell Collins, Inc. Multi-Mode Receiver (STC ST01883WI or 4 others). Effective Feb 18, 2020
- [AD 2019-25-17](https://openairdocs.org/ad/2019-25-17) (historical): Indicating/ recording system · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Dec 27, 2019
- [AD 2019-20-03](https://openairdocs.org/ad/2019-20-03) (historical): Information systems · Airbus A340-312, A340-313, A318-111 and 48 more. Effective Nov 19, 2019
- [AD 2019-22-10](https://openairdocs.org/ad/2019-22-10) (historical): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Nov 13, 2019
- [AD 2019-20-02](https://openairdocs.org/ad/2019-20-02) (historical): Fuselage · Boeing Airplane Company, Wichita Division 75 (Army PT-13), 737-600 Series, 737-700 Series and 4 more. Effective Oct 3, 2019
- [AD 2019-03-26](https://openairdocs.org/ad/2019-03-26) (historical): Equipment/furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 8, 2019
- [AD 2017-16-05](https://openairdocs.org/ad/2017-16-05) (historical): Wings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Sep 22, 2017
- [AD 2017-14-13](https://openairdocs.org/ad/2017-14-13) (historical): Equipment and Furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Aug 23, 2017
- [AD 2016-18-01](https://openairdocs.org/ad/2016-18-01) (historical): Landing Gear · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Oct 5, 2016
- [AD 2016-13-16](https://openairdocs.org/ad/2016-13-16) (historical): Stabilizers · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Aug 12, 2016
- [AD 2015-19-03](https://openairdocs.org/ad/2015-19-03) (historical): Fuel Selector/Shutoff Valve · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Oct 21, 2015
- [AD 2015-16-01](https://openairdocs.org/ad/2015-16-01) (historical): Air Conditioning · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 9 more. Effective Sep 15, 2015
- [AD 2013-26-08](https://openairdocs.org/ad/2013-26-08) (historical): Ice and Rain Protection · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Feb 10, 2014
- [AD 2013-24-13](https://openairdocs.org/ad/2013-24-13) (historical): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 8 more. Effective Jan 7, 2014
- [AD 2013-19-04](https://openairdocs.org/ad/2013-19-04) (historical): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Nov 4, 2013
- [AD 2013-18-09](https://openairdocs.org/ad/2013-18-09) (historical): Communications · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 137 more. Effective Oct 3, 2013
- [AD 2013-07-09](https://openairdocs.org/ad/2013-07-09) (historical): Oxygen · Boeing 737-700 Series, 737-700C Series, 737-800 Series and 4 more. Effective May 20, 2013
- [AD 2013-07-07](https://openairdocs.org/ad/2013-07-07) (historical): Stabilizers · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective May 20, 2013
- [AD 2012-21-08](https://openairdocs.org/ad/2012-21-08) (historical): Auto Flight · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Nov 27, 2012
- [AD 2012-19-11](https://openairdocs.org/ad/2012-19-11) (historical): Air Conditioning · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 9 more. Effective Nov 7, 2012
- [AD 2010-17-05](https://openairdocs.org/ad/2010-17-05) (historical): Fuel system · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Sep 22, 2010
- [AD 2010-17-19](https://openairdocs.org/ad/2010-17-19) (historical): Flight controls · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Sep 9, 2010
- [AD 2010-09-05](https://openairdocs.org/ad/2010-09-05) (historical): Flight controls · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 29, 2010
- [AD 2010-06-51](https://openairdocs.org/ad/2010-06-51) (historical): Flight controls · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 7, 2010
- [AD 2009-24-07](https://openairdocs.org/ad/2009-24-07) (historical): Landing gear · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 1 more. Effective Jan 4, 2010
- [AD 2009-21-10](https://openairdocs.org/ad/2009-21-10) (historical): Oxygen · Airbus A300, Model B4-605R, A300, Model B4-620, A300, Model B4-622 and 138 more. Effective Dec 17, 2009
- [AD 2009-01-02](https://openairdocs.org/ad/2009-01-02) (historical): Air conditioning (A/C) outlet · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Feb 27, 2009
- [AD 2008-12-04](https://openairdocs.org/ad/2008-12-04) (historical): Fuselage skin · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Jul 16, 2008
- [AD 2008-10-10](https://openairdocs.org/ad/2008-10-10) (historical): New limitations for fuel tank systems · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Jun 12, 2008
- [AD 2008-08-24](https://openairdocs.org/ad/2008-08-24) (historical): Drain tube assemblies · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective May 27, 2008
- [AD 2007-18-52](https://openairdocs.org/ad/2007-18-52) (historical): Main slat track downstop assemblies · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Sep 26, 2007
- [AD 2007-18-51](https://openairdocs.org/ad/2007-18-51) (historical): Main slat track downstop assembly · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Aug 25, 2007
- [AD 2006-10-17](https://openairdocs.org/ad/2006-10-17) (historical): Compass bracket assembly · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Jun 22, 2006
- [AD 2005-24-03](https://openairdocs.org/ad/2005-24-03) (historical): Nacelle support fittings and the lower wing skin panels · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 1 more. Effective Dec 28, 2005
- [AD 2005-25-03](https://openairdocs.org/ad/2005-25-03) (historical): Point "D" splice fitting · Boeing 737-700 Series, 737-700C Series and 737-800 Series. Effective Dec 21, 2005
- [AD 2005-12-05](https://openairdocs.org/ad/2005-12-05) (historical): Flight deck door · Reinforced cockpit door (Safran Cabin STC ST01335LA or 2 others). Effective Jul 19, 2005
- [AD 2005-07-20](https://openairdocs.org/ad/2005-07-20) (historical): Flight control computers · Boeing 737-600 Series, 737-700 Series, 737-800 Series and 1 more. Effective May 12, 2005
- [AD 2005-05-18](https://openairdocs.org/ad/2005-05-18) (historical): Webs of the aft pressure bulkhead · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Apr 18, 2005
- [AD 2003-14-04](https://openairdocs.org/ad/2003-14-04) (historical): Flight Deck Door Pressure Relief Latch Assemblies · Boeing 737-200 Series, 737-300 Series, 737-400 Series and 14 more. Effective Jul 25, 2003
- [AD 2003-03-01](https://openairdocs.org/ad/2003-03-01) (historical): Aft Engine Mount · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Feb 13, 2003
- [AD 2002-18-52](https://openairdocs.org/ad/2002-18-52) (historical): Fuel Pumps · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 4 more
- [AD 2002-16-03](https://openairdocs.org/ad/2002-16-03) (historical): Main landing gear (MLG) · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Aug 27, 2002
- [AD 2001-06-08](https://openairdocs.org/ad/2001-06-08) (historical): Elevator Hinge Plates · Boeing 737-600 Series, 737-700 Series and 737-800 Series. Effective Apr 9, 2001
- [AD 2001-04-08](https://openairdocs.org/ad/2001-04-08) (historical): Elevator Tab Assembly · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 1 more. Effective Mar 20, 2001
- [AD 99-08-03](https://openairdocs.org/ad/99-08-03) (historical): Power Feeder Terminals · Boeing 737-600 Series, 737-700 Series and 737-800 Series. Effective Apr 19, 1999
- [AD 99-04-11](https://openairdocs.org/ad/99-04-11) (historical): Aft Strut Insulation Blankets · Boeing 737-600 Series, 737-700 Series and 737-800 Series. Effective Mar 18, 1999

All 447: https://openairdocs.org/aircraft/N39726/ads.md

## Information bulletins (advisory) (22 in force)

- [SAIB 2026-17](https://openairdocs.org/saib/2026-17): VNAV Approach Disconnect Following Missed Approach, Anomaly on Airplanes with FMC U14.0/14.1. Issued Oct 3, 2026
- [SAIB 2025-08](https://openairdocs.org/saib/2025-08): INDICATING/RECORDING SYSTEM, Erroneous Illumination of Cabin Altitude Warning Lights in High Altitude Landing Mode. Issued Sep 8, 2025
- [SAIB AIR-21-12](https://openairdocs.org/saib/AIR-21-12): Thrust Reversers. Issued Aug 3, 2021
- [SAIB NE-19-03](https://openairdocs.org/saib/NE-19-03): Escape Slide Maintenance Tasks and Intervals - JASC 2565. Issued Feb 19, 2019
- [SAIB NM-18-33](https://openairdocs.org/saib/NM-18-33): Engine Fuel and Control. Issued Dec 17, 2018
- [SAIB NM-18-18](https://openairdocs.org/saib/NM-18-18): Equipment/Furnishings - First Observer's Seat Cup Holder. Issued Jul 2, 2018
- [SAIB NM-17-17](https://openairdocs.org/saib/NM-17-17): Oxygen System. Issued Jun 19, 2017
- [SAIB NM-17-10](https://openairdocs.org/saib/NM-17-10): Maintenance Practices. Issued Apr 13, 2017
- [SAIB NM-16-21](https://openairdocs.org/saib/NM-16-21): Flight Controls. Issued Aug 8, 2016
- [SAIB NM-15-03](https://openairdocs.org/saib/NM-15-03): Flight Controls. Issued Nov 24, 2014
- [SAIB NM-15-02](https://openairdocs.org/saib/NM-15-02): Cabin Equipment/Furnishings. Issued Nov 6, 2014
- [SAIB NM-12-11](https://openairdocs.org/saib/NM-12-11): Equipment/Furnishings: Buffet/Galleys. Issued Jan 10, 2012
- [SAIB NM-09-03](https://openairdocs.org/saib/NM-09-03): Engine Fuel and Control - Implementing Fuel Tank System Airworthiness Limitations. Issued Dec 11, 2008
- [SAIB NM-08-43](https://openairdocs.org/saib/NM-08-43): Cabin Equipment/Furnishings - Seats. Issued Sep 3, 2008
- [SAIB NM-08-24](https://openairdocs.org/saib/NM-08-24): Water/Waste: Freezing Potable Water Lines. Issued May 22, 2008
- [SAIB NM-07-47](https://openairdocs.org/saib/NM-07-47): Boeing Model 737 Series Forward Airstairs. Issued Sep 6, 2007
- [SAIB NM-06-57](https://openairdocs.org/saib/NM-06-57): Reports of damage to airplanes and to property on the ground caused by blue or clear ice falling from airplanes.. Issued Jul 27, 2006
- [SAIB NM-06-56](https://openairdocs.org/saib/NM-06-56): . Issued Jul 19, 2006
- [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 N39726.

## FAA accident and incident reports (2)

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

- [Incident 20141130021359I](https://openairdocs.org/incident/20141130021359I), Nov 30, 2014: Boeing 737-724 (N39726), Houston, TX, No damage. While climbing to cruise altitude, at FL330 the aircraft experienced a loss of cabin pressurization. The flight crew enacted qrh procedures and initiated a…
- [Incident 20000920021579I](https://openairdocs.org/incident/20000920021579I), Sep 20, 2000: Boeing 737724 (N39726), Omaha, NE, Minor damage. (-23) During a preflight inspection, the crew discovered the a/c had been struck by birds the previous night flying from houston, TX. To Omaha, NE as flight…

## Service difficulty reports (77, 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 CALA2026092419786](https://openairdocs.org/sdr/CALA2026092419786), Sep 23, 2026: POWER SUPPLY. FAULTED. EMERGENCY LIGHT INOPERATIVE, DURING LIGHT CHECK.. (RH AFT GALLEY). REPLACED THE LIGHT IN THE AFT GALLEY. PERFORMED OPS CHECK, OPS CHECKED GOOD IAW AMM 33-51-06-
- [SDR CALA2026083119043](https://openairdocs.org/sdr/CALA2026083119043), Aug 30, 2026: LAMP. INOPERATIVE. R2 EXTERIOR EMERGENCY LAMP INOPERATIVE. REPLACED THE LAMPS IN THE EXTERIOR SLIDE LIGHT IAW AMM 33-51-04. OPS CHECKED GOOD.
- [SDR CALA2026042715741](https://openairdocs.org/sdr/CALA2026042715741), Apr 23, 2026: SLIDE. UNRAVELED. MCD SLIDE HAS EXCESS SLIDE MATERIAL EXPOSED. RESTOWED EXCESS GIRT BAR MATERIAL INTO THE VALISE REF AMM TASK 25-66-01-400-801, NO DEFECTS NOTED.
- [SDR CALA2026030414306](https://openairdocs.org/sdr/CALA2026030414306), Mar 4, 2026: GIRT BAR. UNRAVELED. GALLEY DOOR FLAP LOOSE AT BOTTOM CHANGED ERRONEOUS INVALID TO A VALID ONE. AFTER INVESTIGATING VAGUE WRITE UP, FOUND R1 DOOR SLIDE HAS EXCESSIVE GIRT MATERIAL E
- [SDR CALA2026030314295](https://openairdocs.org/sdr/CALA2026030314295), Feb 28, 2026: SENSE LINE. FAULTED. FLIGHT CREW REPORTED NR 2 ENGINE BLEED SPIKED TO 76 PSI DURING TAKE OFF. AFTER SEVERAL MINUTES BLEED PSI ON NR 2 ENG CAME BACK DOWN TO NORMAL BUT AS ACFT KEPT C
- [SDR CALA2026012713345](https://openairdocs.org/sdr/CALA2026012713345), Jan 25, 2026: WIRE. OPEN. EMERGENCY LIGHTS OPERATIONAL CHECK - RIGHT CENTER OVERWING EXIT EXTERIOR EMERGENCY LIGHTS DID NOT ILLUMINATE DURING CHECK.REQUESTING MEL REF 3314A FOR EXTERIOR 
- [SDR CALA2025102410489](https://openairdocs.org/sdr/CALA2025102410489), Oct 22, 2025: SLIDE. DEPLOYED. POTENTIAL PARTIAL SLIDE DEPLOYMENT NEAR GIRT BAR DOOR 1R ADD PICS REMOVED AND REPLACED R-1 SLIDE ASSY PER 737 AMM 25-66-01-000-802 803. RENDER SAFE C/W AND EMAI
- [SDR CALA2025102010293](https://openairdocs.org/sdr/CALA2025102010293), Oct 20, 2025: LIGHT. INOPERATIVE. EMER EXIT LIGHTS COME ON WHEN THE SWITCH IS IN THE OFF POSITION. CYCLED SWITCH AT REAR FA PANEL EMERGENCY LIGHTS HAVE EXTINGUISHED. AC OK FOR SERVICE.
- [SDR CALA2025091508867](https://openairdocs.org/sdr/CALA2025091508867), Sep 11, 2025: BATTERY PACK. FAULTED. EMERGENCY LIGHT BATTERY PACK M1670 FAILS CAPACITY CHECK.EMERGENCY LIGHTING SYSTEM FUNCTIONAL CHECK. REPLACED EMERGENCY LIGHT BATTERY PACK M1670. OP CKS GOOD.
- [SDR CALA2025062605886](https://openairdocs.org/sdr/CALA2025062605886), Jun 24, 2025: SLIDE. OUT OF POSITION. SLIDE PACK DOOR 2R HAS A LARGE GAP BETWEEN COVE R AND SLIDE UPDATED MAA CODE FIX USING VENDOR MAA SCREEN PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. MAC MET
- [SDR CALA2025061905710](https://openairdocs.org/sdr/CALA2025061905710), Jun 17, 2025: CHARGER. FAULTED. EMERGENCY LIGHT AT SEAT 4AB INOP. ONLY ONE SEAT LIGHTS INOP, MET ALL MINIMUM DISPATCH REQUAREMENTS FROM CARD 33160. REQUESTED MEL 3319E. MEL 3319E SEAT IS AT CL
- [SDR CALA2025032503157](https://openairdocs.org/sdr/CALA2025032503157), Mar 24, 2025: LAMP. INOPERATIVE. EMERGENCY WINDOW LIGHT AT SEAT 21F INOP RELAMPED EMERGANCY WINDOW LIGHT AT SEAT 21F IAW AMM 33-51-00. OPS CHECK GOOD.
- [SDR CALA2024120501410](https://openairdocs.org/sdr/CALA2024120501410), Dec 2, 2024: BULB. INOPERATIVE. EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK {B737-33-3-0235} - 2EA. BULBS INOP AT L1 DOOR AREA LIGHT REPLACED 2 EA. BULBS OPS CHECK GOOD IAW AMM 33-51-03
- [SDR CALA2024111102829](https://openairdocs.org/sdr/CALA2024111102829), Nov 9, 2024: WINDOW FRAME. CRACKED. REF BASE NR002302609 AND 002298269 FOR COMPLETION OF ECRA 5311-03306, INTERIM REPAIR TO RH #3 WINDOW FRAME E-F POST #3 HOLE DURING EA 5310- 08195 OP 4 ACCOMPLIS
- [SDR CALA2024042201173](https://openairdocs.org/sdr/CALA2024042201173), Apr 22, 2024: BATTERY PACK. NO TEST. EMERGENCY BATTERY PACK M1673 FAILS FUNCTIONAL CHECK.
- [SDR CALA2024042201180](https://openairdocs.org/sdr/CALA2024042201180), Apr 16, 2024: BATTERY PACK. DISCHARGED. EMERGENCY BATTERY PACK M1668 FAILS FUNCTIONAL CHECK. REMOVED AND REPLACED THE BATTERY PACK M1668 IAW AMM 33-51-06-960-805, OPS CHECKED GOOD IAW AMM 33-51-06-960
- [SDR CALA2024042201179](https://openairdocs.org/sdr/CALA2024042201179), Apr 16, 2024: BATTERY PACK. DISCHARGED. EMERGENCY BATTERY PACK M1669 FAILS FUNCTIONAL CHECK. REMOVED AND REPLACED BATTERY PACK M1669 IAW AMM 33-51-06-960-805, OPS CHECKED GOOD IAW AMM 33-51-06-960-805
- [SDR CALA2024042201178](https://openairdocs.org/sdr/CALA2024042201178), Apr 16, 2024: BATTERY PACK. DISCHARGED. EMERGENCY BATTERY PACK M1670 FAILS FUNCTIONAL CHECK. REMOVED & REPLACED EMERGENCY BATTERY PACK M1670 IAW AMM 33-51-06-960-805. OPS CHECKED GOOD IAW AMM 33-51-06
- [SDR CALA2024042201177](https://openairdocs.org/sdr/CALA2024042201177), Apr 16, 2024: BATTERY PACK. DISCHARGED. EMERGENCY BATTERY PACK M1672 FAILS FUNCTIONAL CHECK. REMOVED AND REPLACED EMERGENCY BATTERY PACK M1672 IAW AMM 33-51-06, OPS TESTED GOOD IAW AMM 33-51-06.
- [SDR CALA2024042201176](https://openairdocs.org/sdr/CALA2024042201176), Apr 16, 2024: BATTERY PACK. DISCHARGED. EMERGENCY BATTERY PACK M1674 FAILS FUNCTIONAL CHECK. REMOVED, REPLACED, & OPS CHECKED EMERGENCY BATTERY PACK M1674 IAW AMM 33-51-06-960-805, OPS CHECKED GOOD.
- [SDR CALA2024042201175](https://openairdocs.org/sdr/CALA2024042201175), Apr 16, 2024: BATTERY PACK. DISCHARGED. EMERGENCY BATTERY PACK M1675 FAILS FUNCTIONAL CHECK. REMOVED, REPLACED, & OPS CHECKED EMERGENCY BATTERY PACK M1675 IAW AMM 33-51-06-960-805 OPS CHECKED GOOD.
- [SDR CALA2024042201174](https://openairdocs.org/sdr/CALA2024042201174), Apr 16, 2024: BATTERY PACK. DISCHARGED. EMERGENCY BATTERY PACK M1676 FAILS FUNCTIONAL CHECK. R & R EMERGENCY BATTERY PACK M1676 OPS CHECK GOOD IAW AMM 33-51-06-960-805.
- [SDR CALA2024040300970](https://openairdocs.org/sdr/CALA2024040300970), Apr 1, 2024: FLOORBEAM. CORRODED. MAIN CABIN FLOORBEAM STA 947 RBL 47 AT OUTBD LAV MOUNT IS CORRODED. INSTALLED FLOORBEAM REPAIR ON THE UPPER CHORD OF THE FLOOR BEAM AT STA 947 FROM RBL 59 TO LB
- [SDR CALA2024040300966](https://openairdocs.org/sdr/CALA2024040300966), Apr 1, 2024: DOOR SILL. CORRODED. (B373-53-3-0737) MAIN CABIN R2 CUTOUT LOWER MAIN SILL INNER CHORD CORROED APPROX. STA 986 TRANSCRIBED FROM HAECO GSO NR 9280551 REMOVED AND REPLACED MAIN CABIN 
- [SDR CALA2024040300965](https://openairdocs.org/sdr/CALA2024040300965), Apr 1, 2024: FLOORBEAM. CORRODED. (B737-06-03-0049) MAIN CABIN STA 986 FLOOR BEAM PREVIOUS TCAP REPAIR CORRODED FROM LBL48 TO RBL 48 IN SEVERAL LOCATIONS. TRANSCRIBED FROM HAECO GSO NR 9280495 P
- [SDR CALA2024032200820](https://openairdocs.org/sdr/CALA2024032200820), Mar 19, 2024: PAN. GOUGED. R1 DOOR, EXTERNAL HANDLE PAN IS GOUGED IN THE CENT ER CUTOUT RADIUS. REMOVED AND REPLACED HANDLE PAN IAW BAC DWG 141A6516 REV F.
- [SDR CALA2022122803513](https://openairdocs.org/sdr/CALA2022122803513), Dec 28, 2022: SENSOR. DAMAGED. SPLIT FLAP ON RETRACT AFTER TO RANGE NO OTHER FAULTS FOUND ON FSEU. PICTURE ATTACHED. PER PILOT VERBAGE FLAP STUCKED AT 2 WITH PERFORMED AMM TASK 27-59-00-730-8
- [SDR CALA2020010600021](https://openairdocs.org/sdr/CALA2020010600021), Dec 22, 2019: PRESSURE DECK. CRACKED. WING CENTER SECTION REAR SPAR VERTICAL PRESSURE DECK WEB FOUND C RACK AT LBL40-LBL45. CRACK AT CENTER SECTION REAR SPAR REPAIRED AS PER B737-700 SRM 5 7-10-10 R
- [SDR CALA2019012800172](https://openairdocs.org/sdr/CALA2019012800172), Jan 26, 2019: OXYGEN BOTTLE. LEAKING. OXYGEN REGULATOR OPERATION LEAKING CAPTAIN'S OXYGEN DEPLETED INFLT LOCKING ITEM UNLOCKING PAGE PERFORMED O2 LK CHK. NO LKS NOTED AT BOTTLE AND AT ALL MASKS POSI
- [SDR CALA2018100802070](https://openairdocs.org/sdr/CALA2018100802070), Oct 8, 2018: MOTOR. MALFUNCTIONED. DURING FLT CONTROL RUDDER STANDBY CHECK WITH HYDRAULIC "A" SWITCH ON LOW PRESSURE LIGHT IS ON. R/R STBY RUDDER SOV MOTOR IAW 27-21-94...OPS AND LEAK CK GOOD -EN
- [SDR CALA2018062201513](https://openairdocs.org/sdr/CALA2018062201513), Jun 20, 2018: WIRE. BROKEN. LEFT ELEVATOR PITOT PROBE LIGHT ILLUMINATED. FOUND A BROKEN WIRE ON THE ELEVATOR FEEL PROBE CONNECTOR. REPLACED THE CONNECTOR IAW SWP 20-64-15. ELEVATOR PROBE H
- [SDR CALA2018031200893](https://openairdocs.org/sdr/CALA2018031200893), Mar 11, 2018: FLOORBEAM. CORRODED. STA 328 FLOORBEAM CORROSION AT RBL 27 AND RBL 39. CREATED FOR SFR PURPOSES. REPAIRED STA328 FLOORBEAM BTW RBL1 & RBL40 REF SRM53-10-51 REPAIR 7 PER ECRA5310-073
- [SDR CALA2017110303918](https://openairdocs.org/sdr/CALA2017110303918), Nov 3, 2017: LIGHT. BROKEN. COVER ON EMERGENCY EXIT LIGHT AT FRONT LOWER EDGE OF DOOR 1R LOOSE. FOUND LIGHT ASSY BROKEN, REPLACED ASSY, OPS NORMAL REF AMM 33-51-01.
- [SDR CALA2017091803225](https://openairdocs.org/sdr/CALA2017091803225), Sep 18, 2017: ENGINE. OIL CONSUMPTION. FUMES OR SMOKE IN CABIN PNEUMATIC POWER SUPPLIED FROM ENGINE. THE NR 1 ENGINE BURNING OIL AND ODOR IN COCKPIT. R & R THE NR 1 ENGINE IAW W/C JE29-7100-1-4900, O
- [SDR CALA2017091503179](https://openairdocs.org/sdr/CALA2017091503179), Sep 15, 2017: COALESCER BAG. ODOR. AN UNPLEASANT ODOR IN THE CABIN AFTER SWITCHING APU BLEED FOR PACKS OPERATION. REMOVED AND REPLACED COALESCER BAG FOR LEFT AND RIGHT PACK IAW A MM 21-51-05. PER
- [SDR CALA2017051901458](https://openairdocs.org/sdr/CALA2017051901458), May 18, 2017: BATTERY. DISCHARGED. AFT GALLEY EMERGENCY FLASHLIGHT LED NOT FLASHING, RT SIDE OUTBD. REPLACED BATTERY PER AMM 25-64-00. OPS CK OK.
- [SDR CALA2016060600346](https://openairdocs.org/sdr/CALA2016060600346), Jun 3, 2016: SKIN. DAMAGED. FOUND DAMAGE ON FUSELAGE AT APPROX BS 240, BETWEEN STRINGER 19L & 20L. REMOVED DAMAGE. PERFORMED SRM 53-00-01 REPAIR 3.
- [SDR CALA2016011200048](https://openairdocs.org/sdr/CALA2016011200048), Jan 11, 2016: BEAM. CRACKED. R1 DOOR CRACKED AT RADIUS FROM HORIZONTAL BEAM TO VERTICAL FLANGE, ABOVE TORQUE BOX AT FWD INBD TORQUE BOX MOUNT BOLT, VIEW WITH DOOR CLOSED, BELOW WINDOW. REPA
- [SDR CALA2016011100045](https://openairdocs.org/sdr/CALA2016011100045), Jan 10, 2016: SKIN. CRACKED. FUSELAGE SKIN HAS A CRACK AT TWO FASTENERS, APPROX 1/2 INCH FROM FWD OF STATION 540 SKIN EDGE, BETWEEN STRINGERS 22R & 23R. FABRICATED & INSTALLED REPAIR PARTS 
- [SDR CALA2016011100043](https://openairdocs.org/sdr/CALA2016011100043), Jan 10, 2016: SKIN. CRACKED. FUSELAGE SKIN HAS A CRACK APPROX 1/2 FWD OF STATION 540, SKIN AFT EDGE AT FASTENER HOLE, LOCATED BETWEEN STRINGERS 22L & 23L. FABRICATED & INSTALLED REPAIR PART
- [SDR CALA2016010400008](https://openairdocs.org/sdr/CALA2016010400008), Dec 31, 2015: RIB. CRACKED. RIGHT HORIZONTAL STABILIZER IN SPAR RIB HAS A CRACK ON THE STIFFENER AT LOWER TRANSITION RADIUS, STAB STATION 92.70, STIFFENER NR 1. INSTALLED ANGLE & T SECTION
- [SDR CALA2016010400007](https://openairdocs.org/sdr/CALA2016010400007), Dec 31, 2015: RIB. CRACKED. LEFT HORIZONTAL STABILIZER IN SPAR RIB HAS A CRACK ON THE WEB LOCATED ON THE OPPOSITE SIDE OF THE VERTICAL STIFFENER LOWER TRANSITION RADIUS. STAB STATION 92.70
- [SDR CALA2016010400006](https://openairdocs.org/sdr/CALA2016010400006), Dec 31, 2015: RIB. CRACKED. LEFT HORIZONTAL STABILIZER IN SPAR RIB HAS A CRACK ON THE STIFFENER AT LOWER TRANSITION RADIUS, STAB STATION 92.70, STIFFENER NR 2. INSTALLED ANGLE & T SECTION 
- [SDR CALA2016010400005](https://openairdocs.org/sdr/CALA2016010400005), Dec 31, 2015: BEAM. CRACKED. R1 DOOR BEAM CRACKED 1" LONG IN RADIUS. REF TORQUE BOX, LOWER FWD, TOWARD DOOR HINGE MOUNT POINT, VIEWED FROM BELOW. CRACK IS IN RADIUS OF THE BEAMS FLANGE NEAR
- [SDR CALA2016010400004](https://openairdocs.org/sdr/CALA2016010400004), Dec 31, 2015: RIB. CRACKED. RIGHT HORIZONTAL STABILIZER INSPAR RIB HAS A CRACK ON THE STIFFENER AT LOWER TRANSITION RADIUS, STAB STATION 92.70, STIFFENER NR 2. INSTALLED ANGLE & T SECTION 
- [SDR CALA2014120801491](https://openairdocs.org/sdr/CALA2014120801491), Dec 2, 2014: DOOR. MALFUNCTIONED. REF LP 8007264 8 DEF O2 FAILED TO OPEN. REF LP 8007283 FOR AUTO & MANUAL DEPLOY O2 AT SEATS 8 DEF. OPERATIONS CHECKED GOOD.
- [SDR CALA2014120201489](https://openairdocs.org/sdr/CALA2014120201489), Dec 2, 2014: CANISTER. UNSECURE. DOOR 2L JUMP SEAT O2 CANISTERS FELL ON THE FLOOR, NOT ATTACHED TO ACFT DOOR 1L JUMP SEAT O2 DOOR FAILED TO OPEN. REF LOG 8 007269 FOR L1 R & R L2 & R2 JUMP SEAT
- [SDR CALA2014120201488](https://openairdocs.org/sdr/CALA2014120201488), Dec 2, 2014: DOOR. MALFUNCTIONED. 7 ABC, 8 DEF O2 FAILED TO OPEN. REF LP 8007270 FOR 8 DEF. REF LP 8007283 FOR AUTO & MANUAL DEPLOY. O2 DOOR AT 7 ABC & 8 DEF OPERATIONS CHECKED GOOD.
- [SDR CALA2014120201487](https://openairdocs.org/sdr/CALA2014120201487), Dec 2, 2014: DOOR. MALFUNCTIONED. REF LOG PAGE 8007263 DOOR L1 O2 DOOR FAILED TO OPEN AT JUMP SEAT. REPACKED FLIGHT ATTENDANT O2 MASK AT DOOR L1 MM-35-22-31-000-804-0-01.
- [SDR CALA2014120201486](https://openairdocs.org/sdr/CALA2014120201486), Dec 2, 2014: CONTROLLER. FAILED. RAPID DECOMPRESSION OF CABIN AT FL 340. CABIN APPROACHED APPROX 20,000 FT BEFORE IT WAS ARRESTED. NO DOOR LIGHTS. REF FOLLOWING LP FOR PARTS REPLACED. LP 800727

All 77: https://openairdocs.org/aircraft/N39726/reports.md

## STCs that may be installed (OpenAirDocs) (830, first 50)

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 737-724)

- [STC ST03438NY](https://openairdocs.org/stc/ST03438NY): Installation of Adams Rite Lavatory Equipment. Delta Engineering Corporation
- [STC ST04669CH](https://openairdocs.org/stc/ST04669CH): Installation of Honeywell Advanced Communications and Entertainment System (ACES). Honeywell Aerospace
- [STC ST09933AC](https://openairdocs.org/stc/ST09933AC): Expansion of parameters in the digital flight data acquisition unit (DFDAU). L2 Aviation
- [STC ST02269NY](https://openairdocs.org/stc/ST02269NY): Installation of Self Illuminating Floor Path Marking System. Lufthansa Technik AG
- [STC ST12461IB](https://openairdocs.org/stc/ST12461IB): Installation of Cockpit Voice Recorder with optional RIPS Upgrade. Mid- Canada Mod Center
- [STC ST00885LA](https://openairdocs.org/stc/ST00885LA): Installation of fire extinguisher cartridges as replacements for Pacific Scientific fire extinguisher cartridges in fire extinguisher bottles. AMETEK AMERON, LLC d/b/a MASS Systems
- [STC ST12443LA](https://openairdocs.org/stc/ST12443LA): Installation of Teledyne Controls Edge Computing Platform (ECP). Teledyne Controls, LLC
- [STC ST04671CH](https://openairdocs.org/stc/ST04671CH): Installation of Southwest Airlines Interior Reconfiguration for Extended Leg Room (ELR) Cabin. Astronics Connectivity Systems and Certification Corp
- [STC ST12382IB](https://openairdocs.org/stc/ST12382IB): IHOS eXconnect System Installation. Boeing Ireland Limited
- [STC ST09927AC](https://openairdocs.org/stc/ST09927AC): Installation of a Gables Audio Management System. L2 Aviation
- [STC ST10928SC](https://openairdocs.org/stc/ST10928SC): Installation of an Iridium Communications System. L2 Aviation
- [STC ST00197IB](https://openairdocs.org/stc/ST00197IB): Installation of the Universal Quick Access Recorder (uQAR). Flight Data Technologies Inc
- [STC ST04040CH](https://openairdocs.org/stc/ST04040CH): Activation of Smart Runway and Smart Landing (SRSL) Runway Awareness Advisory System (RAAS) Functions for Honeywell Mark V and Mark V-A Enhanced Ground Proximity Warning Systems (EGPWS). Honeywell International Inc
- [STC ST02244SE](https://openairdocs.org/stc/ST02244SE): Interior Completion. Greenpoint Technologies, Inc
- [STC ST04815NY](https://openairdocs.org/stc/ST04815NY): Installation of Gogo FDX Satellite Connectivity Installation. ALOFT AeroArchitects
- [STC ST00555AT](https://openairdocs.org/stc/ST00555AT): Installation of Airshow 210 system. AIRCRAFT RECONFIG TECHNOLOGIES, LLC. Lists 737 Series
- [STC ST03631AT-D](https://openairdocs.org/stc/ST03631AT-D): Installation of Windscreen with Stretcher Access and Stowage Box., Aft of the L1 Entry Door. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03808AT-D](https://openairdocs.org/stc/ST03808AT-D): Installation of an Adapter Plate, Antenna, Radome and Structural Provisions for a Panasonic Global Communications Suite. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03809AT-D](https://openairdocs.org/stc/ST03809AT-D): Installation of Wiring and Systems Provision for a Panasonic Global Communications Suite. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03873AT-D](https://openairdocs.org/stc/ST03873AT-D): Life raft installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04274AT](https://openairdocs.org/stc/ST04274AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04382AT](https://openairdocs.org/stc/ST04382AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04390AT](https://openairdocs.org/stc/ST04390AT): Main Cabin Cargo Carry Provisions installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04391AT](https://openairdocs.org/stc/ST04391AT): Interior Configuration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04392AT](https://openairdocs.org/stc/ST04392AT): Main Cabin Cargo Carry Provisions installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST00952LA](https://openairdocs.org/stc/ST00952LA): Installation of Mass Systems fire extinguisher cartridges as replacements for Kidde fire extinguisher cartridges in fire extinguisher bottles. AMETEK AMERON LLC d/b/a MASS Systems
- [STC ST04328NY](https://openairdocs.org/stc/ST04328NY): The Manufacture and Installation of Exterior Placards, Labels and Signs is to be performed, installed. Libellule Monde Inc
- [STC ST03875NY](https://openairdocs.org/stc/ST03875NY): Installation of interior placards, signs and markings. Libellule Monde Inc
- [STC ST01721NY](https://openairdocs.org/stc/ST01721NY): Installation of a Head of State Executive Interior - Model 737-700IGW. PATS Aircraft LLC
- [STC ST01716NY](https://openairdocs.org/stc/ST01716NY): Installation of Auxiliary Fuel Systems. PATS Aircraft LLC
- [STC ST03405NY](https://openairdocs.org/stc/ST03405NY): Installation (with demod option) of an Connectivity Antenna. Delta Engineering Corporation
- [STC ST04831NY](https://openairdocs.org/stc/ST04831NY): Installation of Vortex Control Technologies Finlets. Kilroy Aviation LLC
- [STC ST12295IB](https://openairdocs.org/stc/ST12295IB): Installation of Cabin Modification. JET AVIATION AG
- [STC ST04531CH](https://openairdocs.org/stc/ST04531CH): Installation of Global Navigation Sciences (GNS) LUX LED Lamp. Global Navigation Science, Inc
- [STC ST04758NY](https://openairdocs.org/stc/ST04758NY): Installation of single cockpit USB charger. Eirtech Aviation Services Inc
- [STC ST02643LA](https://openairdocs.org/stc/ST02643LA): Installation of Stow Bin Protective Wear Strip. Vogt Aero LLC
- [STC ST02746NY](https://openairdocs.org/stc/ST02746NY): Installation of an advertisement container on the bottom of a seat back tray table. Atin OOH LLC
- [STC ST03218CH](https://openairdocs.org/stc/ST03218CH): Modify aircraft interior to match standard passenger cofigurations, IAW Global Onboard Partners MDL # 252013-737-MDL-02, Rev. N, dtd 1/4/22 or later FAA approved revisions. Atin OOH LLC
- [STC ST02908NY](https://openairdocs.org/stc/ST02908NY): Installation of a Panasonic Avionics Corporation Global Communications Suite (GCS) and/or In-Flight Entertainment (IFE). Delta Engineering Corporation
- [STC ST01143LA](https://openairdocs.org/stc/ST01143LA): Installation of Aerocon Engineering Company (AEC) Airstar. Aircraft Technical Development Inc. dba Aerocon Engineering Company
- [STC ST02829CH](https://openairdocs.org/stc/ST02829CH): Installation of Row 44 Broadband Antenna System Provisions. Anuvu IFC Corporation
- [STC ST02836CH-D](https://openairdocs.org/stc/ST02836CH-D): Installation and activation of a Row 44 Broadband System. Anuvu IFC Corporation
- [STC ST03235CH](https://openairdocs.org/stc/ST03235CH): Certification of Compatibility with Wireless Data Technologies. Anuvu IFC Corporation
- [STC ST03301NY](https://openairdocs.org/stc/ST03301NY): Installation and activation of a new Row 44 Wireless Broadband System. Anuvu IFC Corporation
- [STC ST04324CH](https://openairdocs.org/stc/ST04324CH): Installation of a retrofit satellite antenna and associated power supply unit on aircraft previously fitted with the Row 44 Broadband System. Anuvu IFC Corporation
- [STC ST00892LA](https://openairdocs.org/stc/ST00892LA): Installation of Emergency Vision Assurance System (EVAS). VisionSafe LLC
- [STC ST12193IB](https://openairdocs.org/stc/ST12193IB): Installation of SpaceX Starlink Satellite Internet System Tile Antenna, Router and power supply. Airhawke Aérospatial Inc
- [STC ST00030IB](https://openairdocs.org/stc/ST00030IB): Installation of Test Tech ELT. APTOZ EHF
- [STC ST04479AT](https://openairdocs.org/stc/ST04479AT): Installation of Flex-Combi Interior. Pemco World Air Services
- [STC ST09191AC](https://openairdocs.org/stc/ST09191AC): Installation of DeVore wing fwd position light assembly. (737 ALL). The Boeing Company

All 830: https://openairdocs.org/aircraft/N39726/stcs.md

## Earlier aircraft with N39726

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N39726 before.

- [Cancelled 1990-07-18](https://openairdocs.org/deregistered/N39726-1990-07-18): Piper PA-44-180, S/N 447995028. N-number assigned, not yet registered
- [Cancelled 1948-09-17](https://openairdocs.org/deregistered/N39726-1948-09-17): Waco UPF-7, S/N 5859. Owner: [Paul Dameron](https://openairdocs.org/faa-owner/PAUL%20DAMERON), [Detroit, MI](https://openairdocs.org/faa-place/MI/Detroit)

## Related

- Other Boeing 737-724 aircraft: https://openairdocs.org/model/boeing-737-724/aircraft.md
- The CFM International CFM56 series engine: https://openairdocs.org/engine/cfm-international-cfm56-series.md

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