# N39728: 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: 28944
- Year built: 1999
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: July 15, 1999
- Certificate issued: January 16, 2019
- Expires: January 31, 2029
- Mode S code: A49F89
- 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=39728
- Page: https://openairdocs.org/aircraft/N39728

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/N39728/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 N39728.

## FAA accident and incident reports

None matched to N39728.

## Service difficulty reports (75, 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 CALA2026052716564](https://openairdocs.org/sdr/CALA2026052716564), May 25, 2026: ADIRU. FAULTED. ON ROTATION R IRS FAULT LIGHT ILLUMINATED. DOES NOT EXTINGUISH COMPLETED ADIRU BITE FIM TASK 34-21 TASK 801, CURRENT STATUS R ADIRU, REPLACED RT ADIRU, OPS CHEC
- [SDR CALA2026043015899](https://openairdocs.org/sdr/CALA2026043015899), Apr 28, 2026: SLIDING WINDOW. LEAKING. CAPTAIN`S LEFT WINDOW AIR LEAKING SOUND IN FLTPRESSURIZED A/C AND FOUND LEAKS AT 500FT AROUND BOTTOM OF 2L SLIDING WINDOW 56-12-11. REMOVED THE WINDOW. STARTED 
- [SDR CALA2026021713839](https://openairdocs.org/sdr/CALA2026021713839), Feb 14, 2026: DRAIN LINE. DISCONNECTED. DURING TAKEOFF WATER WAS FALLING OUT OF CA SIDE WINDOW AND LOUD NOISE WAS PRESENT INSPECTED CAPTAIN NR 2 WINDOW. FOUND LOWER DRAIN HOLE TUBE DISCONECTED. IAW AM
- [SDR CALA2025103110768](https://openairdocs.org/sdr/CALA2025103110768), Oct 26, 2025: WIRE. PULLED. SEAT MOUNTED EMERGENCY LIGHT AT SEAT 10C INOPERATIVE. R & R THE FLOOR PROXIMITY EMERGENCY LIGHT ASSY IAW AMM 33-51-11. DID NOT FIX. FOUND WIRING PULLED OUT FROM
- [SDR CALA2025080507337](https://openairdocs.org/sdr/CALA2025080507337), Aug 4, 2025: SLIDE. PARTIAL DEPLOY. SLIDE AT DOOR L1 PARTIAL DEPLOY. REMOVED DOOR 1L SLIDE ASSY IAW AMM 25-66-01-000-801. INSTALLED ESCAPE SLIDE PACK AND COVER PER AMM TASK 25-66-01-400-803.
- [SDR CALA2025071606630](https://openairdocs.org/sdr/CALA2025071606630), Jul 14, 2025: LAMP. INOPERATIVE. EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK. EMERGENCY LIGHT INOPERATIVE AT EXTERIOR OF L1 DOOR . RELAMPED L1 DOOR SLIDE EMERGENCY LIGHT IAW AMM 33-51-04-960-80
- [SDR CALA2025061705602](https://openairdocs.org/sdr/CALA2025061705602), Jun 13, 2025: SKIRT. NO DISCREPANCY. EXCESSIVE SKIRT SHOWING ON 1R DOOR. PERFORMED INSPECTION OF DOOR SLIDE GIRT BAR TO COVER MEASUREMENT WITHIN LIMITS REF AMM TASK 25-66-01-400-803 UNDER 11" HANGI
- [SDR CALA2025061205507](https://openairdocs.org/sdr/CALA2025061205507), Jun 9, 2025: ACM. FAULTED. LEFT PACK TRIPPED TWO TIMES IN FLIGHT RESET BOTH TIMES BUT UNABL E TO COOL CABIN DEBRIEFED CREW AND THEY INDICATED THAT 4 ATTEMPTS TO RESET PACK WERE UNSUCCESSF
- [SDR CALA2025041804013](https://openairdocs.org/sdr/CALA2025041804013), Apr 16, 2025: SKIN. DAMAGED. R/H HORIZONTAL STABILIZER AT STA 111.10 REQUIRES A SKIN REPAIR FOR ACCESS REPAIR PERFORMED REPAIR TO R/H HORIZONTAL STABILIZER AT STA 111.10 PER SRM 55-10-01 RE
- [SDR CALA2025022402428](https://openairdocs.org/sdr/CALA2025022402428), Feb 19, 2025: COVER. UNSECURE. 21F EXIT ROW DOOR HANDL E COVER UNSECURE UPDATED MAA CODE FIX USING VENDOR MAA SCREEN PLEASE INVESTIGATE AND CONTACT TOMC WITH FINDINGS. RE-INSTALLED 21F EXIT D
- [SDR CALA2024102900954](https://openairdocs.org/sdr/CALA2024102900954), Oct 26, 2024: UNKNOWN. ODOR. FWD LAV HAS UNPLEASANT ODOR.NEEDS CLEANING AND DISINFECTANT PERFORMED WATER OZONE DISINFECTION REF AMM 38-10-00. NO DEFECTS NOTED
- [SDR CALA2023120403539](https://openairdocs.org/sdr/CALA2023120403539), Dec 3, 2023: VALVE. UNKNOWN. LEFT INDICATED EXCESSIVE FUEL LOSS. LEAK SUSPECTE D. EXTERNAL LEAKS OR ANY INDICATION OF FUEL LEAKAGE. PERFORMED FUEL STICKS AND FOUND LEFT WING STICK 5 SHOWED 
- [SDR CALA2023051701549](https://openairdocs.org/sdr/CALA2023051701549), May 16, 2023: SENSOR. DAMAGED. AFTER ROTATION GEAR HANDLE UP BOTH GREEEN AND RED NOSE GEAR LIGH T REMAINED ON AS WELL AS PESU CURRENT FAULT SHOW 3 FAULTS "NOSE DISAGREE" AND "SENSOR" AND "NON
- [SDR CALA2023012300187](https://openairdocs.org/sdr/CALA2023012300187), Jan 23, 2023: WINDOW FRAME. CRACKED. L1 WINDOW FRAME EXTERNAL SURFACE UPPER AFT CORNER APPERS TO BE CRACKED. (REF UNITED EA 5310-04554 REV B). REPAIRED L1 WINDOW FRAME OTBD POST IAW EA 5310-04554 R
- [SDR CALA2023011000076](https://openairdocs.org/sdr/CALA2023011000076), Jan 9, 2023: BATTERY PACK. INOPERATIVE. ALL EMERGENCY LIGHT BATTERY PACKS FAIL CAPACITY CHECK. REF TO PEMCO NR 13146.0021 AND LP 3513069 REMOVED AND REPLACED EMERGENCY BATTERY PACK FOR SCEPTRE TRACKIN
- [SDR CALA2023011000074](https://openairdocs.org/sdr/CALA2023011000074), Jan 9, 2023: BATTERY PACK. INOPERATIVE. ALL EMERGENCY LIGHT BATTERY PACKS FAIL CAPACITY CHECK. REF TO PEMCO NR 13146.0021 AND LP 3513069 REMOVED AND REPLACED EMERGENCY BATTERY PACK FOR SCEPTRE TRACKIN
- [SDR CALA2023011000073](https://openairdocs.org/sdr/CALA2023011000073), Jan 9, 2023: BATTERY PACK. INOPERATIVE. ALL EMERGENCY LIGHT BATTERY PACKS FAIL CAPACITY CHECK. REF TO PEMCO NR 13146.0021, AND LP 3513069. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACKS FOR SCEPTR
- [SDR CALA2023011000072](https://openairdocs.org/sdr/CALA2023011000072), Jan 9, 2023: BATTERY PACK. INOPERATIVE. ALL EMERGENCY LIGHT BATTERY PACKS FAIL CAPACITY CHECK. REF TO PEMCO NR 13146.0021 AND LP 3513069 REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACKS FOR SCEPTRE 
- [SDR CALA2023011000071](https://openairdocs.org/sdr/CALA2023011000071), Jan 9, 2023: BATTERY PACK. INOPERATIVE. ALL EMERGENCY LIGHTS BATTERY PACKS FAIL CAPACITY CHECK. REF TO PEMCO NR 13146.0021. AND LP 3513069 REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACKS FOR SCEPTR
- [SDR CALA2023011000070](https://openairdocs.org/sdr/CALA2023011000070), Jan 9, 2023: BATTERY PACK. INOPERATIVE. ALL EMERGENCY LIGHTS BATTERY PACKS FAIL CAPACITY CHECK. REF TO PEMCO NR 13146.0021 MAIN LP 3513069 FOR SCEPTRE TRACKING ONLY. REMOVED AND REPLACED EMERGENCY BAT
- [SDR CALA2023011000069](https://openairdocs.org/sdr/CALA2023011000069), Jan 9, 2023: BATTERY PACK. INOPERATIVE. ALL EMERGENCY LIGHTS BATTERY PACKS FAIL CAPACITY CHECK. REF TO PEMCO NR 13146.0021 REMOVED AND REPLACED ALL EMERGENCY LIGHTS BATTERY PACKS IAW B737 272624. AMM 
- [SDR CALA2023010900062](https://openairdocs.org/sdr/CALA2023010900062), Jan 9, 2023: BATTERY PACK. NO TEST. ALL EMERGENCY LIGHTS BATTERY PACKS FAIL CAPACITY CHECK. REMOVED AND REPLACED ALL EMERGENCY LIGHTS BATTERY PACKS. PERFORMED EMERGENCY LIGHT OPS CHECK. OPS CHECK 
- [SDR CALA2023010600040](https://openairdocs.org/sdr/CALA2023010600040), Jan 4, 2023: WINDOW FRAME. CRACKED. LH NO.1 WINDOW FRAME EXTERNAL SURFACE UPPER AFT CORNER APPERS TO BE CRACKED. (REF UNITED EA 5310-04554 REV B) REF BY AIRBORNE/PE MCO NR.13146.0197.
- [SDR CALA2022060601443](https://openairdocs.org/sdr/CALA2022060601443), Jun 6, 2022: STRUCTURE. DAMAGED. WEB P/N 141A5180-16 LIGHTENING HOLE ENLARGMENT. REF AVO 9764 C/W STEPS 1.A,B,C, ENLARGE LIGHTNING HOLE TO FACILITATE REPAIRS PERFORMED STEP 1 (D) AS REQUIRED PE
- [SDR CALA2022060601442](https://openairdocs.org/sdr/CALA2022060601442), Jun 6, 2022: SKIN. DENTED. DENT FOUND ON INSPECTION OF BIRD STRIKE AFT OF AOA VANE. ACCOMPLISHED DETAILED VISUAL INSP IAW STEP 2 OF AVO 9718. NO PER AVO9718 PERFORMED STEP 3 HFEC PER PART
- [SDR CALA2022051101209](https://openairdocs.org/sdr/CALA2022051101209), May 11, 2022: NONE. NONE. DENT FOUND ON INSPECTION OF BIRD STRIKE AFT OF AOA VANE. ACCOMPLISHED DETAILED VISUAL INSP IAW STEP 2 OF AVO 9718. NO PER AVO9718 PERFORMED STEP 3 HFEC PER PART
- [SDR CALA2022050901187](https://openairdocs.org/sdr/CALA2022050901187), May 9, 2022: NONE. INOPERATIVE. *EMERGENCY*BIRD STRIKE ON DEPARTURE FRONT RIGHT SIDE. RIGHT SIDE PITOT STATIC INOP. REF 8551953 FOR DETAIL INSP ON RT AND ALT PITOT PROBES , ALOS FLUSH LINES AN
- [SDR CALA2022050901179](https://openairdocs.org/sdr/CALA2022050901179), May 7, 2022: AOA. MISSING. BIRD STRIKE RIGHT SIDE AFT OF RADOME. AOA IS MISSING. REMOVED AND REPLACED RIGHT SIDE AOA SENSOR AS PER AMM CORRECTION, COMPLETED PER AMM 34-21-05-400-801 UP TO
- [SDR CALA2021052400716](https://openairdocs.org/sdr/CALA2021052400716), May 22, 2021: FITTING. CRACKED. B737-57-4-1262 SHEAR FITTING AT STA 540 RBL 40.87 IS CRACKED. N/ R 6227342 REMOVED AND REPLACED CRACKED SHEAR FITTING AT STA 540 RBL 40.87 IAW B737-700 SRM 51-4
- [SDR CALA2021052400715](https://openairdocs.org/sdr/CALA2021052400715), May 22, 2021: FITTING. CRACKED. B737-57-4-1262 SHEAR FITTING AT STA 540 RBL 15.04 IS CRACKED. N/ R 6227340 REMOVED AND REPLACED CRACKED SHEAR FITTING AT STA 540. RBL 15.04 IAW B737-700 SRM 51-
- [SDR CALA2021052400714](https://openairdocs.org/sdr/CALA2021052400714), May 22, 2021: FITTING. CRACKED. B737-57-4-1262 SHEAR FITTING AT STA 540 LBL 6.14 IS CRACKED. N/R 6205888 REMOVED AND REPLACED CRACKED SHEAR FITTING AT STA 540 LBL 6.14 I AW B737-700 SRM 51-40-
- [SDR CALA2021052400713](https://openairdocs.org/sdr/CALA2021052400713), May 22, 2021: FITTING. CRACKED. B737-57-4-1262 SHEAR FITTING AT STA 540 RBL 32.40 IS CRACKED. N/ R 6227341 REMOVED AND REPLACED CRACKED SHEAR FITTING AT STA 540 RBL 32.40 IAW B737-700 SRM 51-4
- [SDR CALA2021052400712](https://openairdocs.org/sdr/CALA2021052400712), May 22, 2021: FITTING. CRACKED. B737-57-4-1262 SHEAR FITTING AT STA 540 RBL 6.14 IS CRACKED. N/R 6205889 REMOVED AND REPLACED CRACKED SHEAR FITTING AT STA 540 RBL 6.16 I AW B737-700 SRM. 51-40
- [SDR CALA2021052400711](https://openairdocs.org/sdr/CALA2021052400711), May 22, 2021: FITTING. CRACKED. B737-57-4-1262 SHEAR FITTING AT STA 540 LBL 32.40 IS CRACKED. N/ R 6205886 REMOVED AND REPLACED CRACKED SHEAR FITTING AT STA 540 LBL 32.40 IAW B737-700 SRM 51-4
- [SDR CALA2021052400710](https://openairdocs.org/sdr/CALA2021052400710), May 22, 2021: FITTING. CRACKED. B737-57-4-1262 SHEAR FITTING AT STA 540 LBL 15.04 IS CRACKED. N/ R 6205887. REMOVED AND REPLACED CRACKED SHEAR FITTING AT STA 540 LBL.15.04 IAW B737-700. SRM. 5
- [SDR CALA2021052400709](https://openairdocs.org/sdr/CALA2021052400709), May 22, 2021: FITTING. CRACKED. B737-57-4-1262 SHEAR FITTING AT STA 540 LBL 40.87 IS CRACKED. N/ R 6205885 REMOVED AND REPLACED CRACKED SHEAR FITTING AT STA 540 LBL 40.87 IAW B737-700 SRM 51.4
- [SDR CALA2019112862077](https://openairdocs.org/sdr/CALA2019112862077), Nov 24, 2019: SKIN. CRACKED. VERTICAL STIFFENER #2 (CRACK ON LOWER RADIUS) ON R/H HORIZONTAL STAB AT STA 129.5 REQUIRES ACCESS FOR RIB REPAIR. SEE FLEETCYCLE N/R 9708910 INSTALLED REPAIR DO
- [SDR CALA2018012600327](https://openairdocs.org/sdr/CALA2018012600327), Jan 26, 2018: LAMP. INOPERATIVE. FOUND EMERGENCY LIGHT INOPERATIVE AT ROW 10, SEAT C. REPLACED THE LAMPS, OPS CHECKED GOOD.
- [SDR CALA2017102003726](https://openairdocs.org/sdr/CALA2017102003726), Oct 20, 2017: BATTERY. DISCHARGED. FOUND BATTERY A T POSITION M1668 JUST FWD OF LT EMERGENCY EXIT BEHIND DADO PANEL TO BE BAD. REPLACED BATTERY OP CKS OK REF AMM33-00-00.
- [SDR CALA2017102003725](https://openairdocs.org/sdr/CALA2017102003725), Oct 20, 2017: BATTERY. DISCHARGED. FOUND EXTERNAL EMERGENCY EXIT HATCH LIGHT INOP DURING NR 2 SERVICE CHECK. REPLACED BATTERY OP CKS OK REF AMM33-00-00.
- [SDR CALA2017102003724](https://openairdocs.org/sdr/CALA2017102003724), Oct 20, 2017: BATTERY. DISCHARGED. LEFT OVERWING HATCH EMERGENCY EXIT HATCH EXIT SIGNS ALL THREE INOP FOUND DURING NR 2 SERVICE CHECK. INOP SIGNS ARE LOCATED AROUND HATCH INSIDE CABIN. REPLACED B
- [SDR CALA2017102003723](https://openairdocs.org/sdr/CALA2017102003723), Oct 20, 2017: BATTERY. DISCHARGED. FOUND STOW BIN 8 CBA EMERGENCY LIGHT TO BE INOP DURING NO. 2 SERVICE CHECK. REPLACED BATTERY OP CKS OK REF AMM33-00-00.
- [SDR CALA2017051501452](https://openairdocs.org/sdr/CALA2017051501452), May 15, 2017: LIGHT. INOPERATIVE. EMERGENCY LIGHTS AT OVERHEAD BIN ROW 11, RELAMPED AT ROW 11 ALL LIGHTS OPS CHECKED GOOD.
- [SDR CALA2016102100796](https://openairdocs.org/sdr/CALA2016102100796), Oct 21, 2016: STRINGER. DENTED. DENT ON STRINGER 23L AT STA 460 SKIN ATTACH FLANGE. INSTALLED STRINGER REPAIR PER ECRA 5330-05816, PART 1, STEPS 1 THRU 3.
- [SDR CALA2016102100795](https://openairdocs.org/sdr/CALA2016102100795), Oct 20, 2016: SKIN. DENTED. FOUND DENT ON FUSELAGE SKIN TO BE AT STA 640 STR23L. DENT HAS PREVIOUSLY BEEN BLENDED OUT AND THERE APPEARS A GOUGE IN THE MIDDLE. CUT OUT DAMAGE AND INSTALLED 
- [SDR CALA2016102100793](https://openairdocs.org/sdr/CALA2016102100793), Oct 20, 2016: SKIN. DENTED. FOUR SCRATCHES AND ONE DENT 17 INCHES FWD OF AFT LAV SERVICE PANEL APPROX STA 847 AND STRINGER 23LT. REMOVED DAMAGED SKIN. FABRICATED AND INSTALLED REPAIR PER E
- [SDR CALA2016101700772](https://openairdocs.org/sdr/CALA2016101700772), Oct 16, 2016: PRESSURE DECK. CRACKED. WW FWD BULKHEAD, UPPER PRESSURE DECK STA 663 AT LBL-35 HAS A CRACK. INSTALLED CATEGORY B REPAIR AT REAR SPAR VERTICAL PRESSURE DECK WEB STA 663 LBL 35 REF SRM 5
- [SDR CALA2016091900659](https://openairdocs.org/sdr/CALA2016091900659), Sep 19, 2016: BATTERY PACK. INOPERATIVE. ALL AFT INTERIOR & EXTERIOR EMERGENCY EXIT LIGHTS INOPERATIVE FROM ROW 29 BACK. REMOVED & REPLACED THE BATTERY PACKS AND POWER SUPPLYS IAW MM 33-51-06. OPS CHEC
- [SDR CALA2014072300987](https://openairdocs.org/sdr/CALA2014072300987), Jul 22, 2014: SPAR. CRACKED. DURING HFEC INSPECTION OF WING REAR SPAR WEB AT STATION RBL 24.92 - 31.93 RT WW A CRACK WAS INDICATED. AREA OF CRACK INDICATION MARKED IN RED. REPAIRED IAW SRM 
- [SDR CALA2014031800351](https://openairdocs.org/sdr/CALA2014031800351), Mar 16, 2014: SKIN. DAMAGED. FUSELAGE SKIN PITTED 2 INCHES FWD OF E & E DOOR CUT OUT AT STATION 321, STRINGER 27R APPROXIMATELY. REPAIRED FUSELAGE SKIN IAW ECRA 5330-04797.

All 75: https://openairdocs.org/aircraft/N39728/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/N39728/stcs.md

## Earlier aircraft with N39728

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N39728 before.

- [Cancelled 1991-12-27](https://openairdocs.org/deregistered/N39728-1991-12-27): Piper PA-32RT-300T, S/N 32R7887155. Exported to Germany. Owner: [Western Acft Lsg Inc](https://openairdocs.org/faa-owner/WESTERN%20ACFT%20LSG%20INC), [Canby, OR](https://openairdocs.org/faa-place/OR/Canby)
- [Cancelled 1949-01-04](https://openairdocs.org/deregistered/N39728-1949-01-04): Waco UPF-7, S/N 5861. Owner: [Purdue Aeronautics Corporation](https://openairdocs.org/faa-owner/PURDUE%20AERONAUTICS%20CORPORATION), [West Lafayette, IN](https://openairdocs.org/faa-place/IN/West%20Lafayette)

## 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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