# N78509: 2008 Boeing 737-824

- Status: Valid registration
- Airframe: [Boeing 737-824](https://openairdocs.org/model/boeing-737-824) (registry code 13844BZ, 149 seats)
- Engine: [CFM International CFM56-7B27/B3 series](https://openairdocs.org/engine/cfm-international-cfm56-7b27-b3-series) (registry code 13054)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company) (OpenAirDocs)
- Serial number: 31638
- Year built: 2008
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: February 21, 2008
- Certificate issued: February 21, 2008
- Expires: August 31, 2029
- Mode S code: AAA593
- 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=78509
- Page: https://openairdocs.org/aircraft/N78509

From the FAA registry file of October 27, 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 CFM56-7B27/B3 model are included.

## ADs that may apply (OpenAirDocs): 344 in force

### Matched by airframe (Boeing 737-824)

- [AD 2026-21-08](https://openairdocs.org/ad/2026-21-08): Wings · Boeing 737-700 Series, 737-700C Series, 737-800 Series and 1 more. Effective Dec 1, 2026
- [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 2025-05-16](https://openairdocs.org/ad/2025-05-16): Fuselage · Boeing 737-800 Series. Effective Apr 22, 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 2024-18-08](https://openairdocs.org/ad/2024-18-08): Equipment/furnishings · Boeing 737-300 Series, 737-400 Series and 737-800 Series. Effective Nov 15, 2024
- [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 2022-08-05](https://openairdocs.org/ad/2022-08-05): Fuselage · Boeing 737-800 Series. Effective May 27, 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 2021-17-08](https://openairdocs.org/ad/2021-17-08): Fuselage · Boeing 737-800 Series and 737-900ER Series with STC ST04096CH. Effective Aug 17, 2021
- [AD 2021-16-15](https://openairdocs.org/ad/2021-16-15): Air conditioning · Boeing 737-8, 737-800 Series, 737-8200 and 2 more. Effective Aug 9, 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 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 2020-01-11](https://openairdocs.org/ad/2020-01-11): Air conditioning · Boeing 737-800 Series, 737-900 Series and 737-900ER Series. Effective Feb 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

### Matched by engine (CFM International CFM56-7B27/B3 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 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 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 2010-01-05](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 2009-11-02](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 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 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 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 2001-02-12](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 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

### 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 2017-12-07](https://openairdocs.org/ad/2017-12-07) (historical): Air conditioning · Boeing 737-800 Series, 737-900 Series and 737-900ER Series. Effective Jul 20, 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 2007-06-52](https://openairdocs.org/ad/2007-06-52) (historical): Spoilers · Boeing 737-800 Series. Effective May 7, 2007
- [AD 2007-06-51](https://openairdocs.org/ad/2007-06-51) (historical): Flight spoiler actuator jams · Boeing 737-800 Series
- [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

All 407: https://openairdocs.org/aircraft/N78509/ads.md

## Information bulletins (advisory) (19 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-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 N78509.

## FAA accident and incident reports

None matched to N78509.

## Service difficulty reports (49)

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 CALA2026090719254](https://openairdocs.org/sdr/CALA2026090719254), Sep 3, 2026: SKIN. CRACKED. EXTERNAL POWER RECEPTACLE (112A) MISSING SECTION AT INNER DOUBLER INITIAL RUBBING BLOCK. REPAIR ACCOMPLISHED IN ACCORDANCE WITH SRM 53-10-15-2R-4 REPAIR 4, PAGE
- [SDR CALA2026090719252](https://openairdocs.org/sdr/CALA2026090719252), Sep 3, 2026: SPAR. CRACKED. RIGHT HORIZONTAL STABILIZER FRONT SPAR O/B FIXED WEB HAS A CRACK ON INSPECTION HOLE. REPAIR ACCOMPLISHED IAW ESR-WI 10-15674 AND ECRA 5510-03391. INPUT FOR RH H
- [SDR CALA2026090919334](https://openairdocs.org/sdr/CALA2026090919334), Aug 28, 2026: SKIN. CRACKED. TWO CRACKS FOUND AT RT HORIZONTAL STAB LOWER IN-SPAR SKIN AT HSS 138.70, 10 INCHES FWD OF T/E, REPAIRED RT HORIZONTAL STAB LOWER SKIN IAW SRM 55-10-01-2R-11. RE
- [SDR CALA2026092819863](https://openairdocs.org/sdr/CALA2026092819863), Aug 27, 2026: SKIN. CRACKED. EA 5510-01843, CRACK FOUND ON RT HORIZONTAL STAB LOWER IN-SPAR SKIN AT HSS 120.30, INBD OF INBD FASTENER ROW, 10.5" FWD OF T/E. REPAIRED RT HORIZONTAL STAB LOWE
- [SDR CALA2026083119001](https://openairdocs.org/sdr/CALA2026083119001), Aug 27, 2026: ATTACH ANGLE. CRACKED. LOWER FUSELAGE REAR SPAR VAPOR BARRIER, UPPER ATTACH ANGLE, RBL 40, BS 663.75. REPAIR ACCOMPLISHED IAW SRM 57-10-10-2R-5, PAGE 1-12, FIG 202.
- [SDR CALA2026012713353](https://openairdocs.org/sdr/CALA2026012713353), Jan 23, 2026: ANTENNA. MISSING. PDA 1 REF LP 7699350 PDA CAT 1 LP CREATED FOR ACFT ARRIVED AT A22 MISSING ELT ANTENNA ON TOP OF THE FUSELAGE JUST FORWARD OF THE VERTICAL STABILIZER. MISSING EL
- [SDR CALA2025091508918](https://openairdocs.org/sdr/CALA2025091508918), Sep 11, 2025: PROXIMITY SENSOR. FAULTED. LE FLAPS TRANSIT LIGHT CAME ON SELECTING FLAPS TO 30. FAULT CODES CHECKED. REMOVED AND REPLACED SLAT NR 1 INBD PROXIMITY SENSOR . ME 29-2762-3-0093 REF TASK 27-
- [SDR CALA2025080107194](https://openairdocs.org/sdr/CALA2025080107194), Jul 30, 2025: SWITCH. OUT OF TOLERANCE. AT TOUCH DOWN L2 AFT ENTRY DOOR LIGHT CAME ON PERFORMED GALLEY SERVICE DOOR INDICATION SENSOR IAW AMM 52-71-11-820-801. FOUND AFT GALLEY ENTRY DOOR SWITCH S200 
- [SDR CALA2025062705986](https://openairdocs.org/sdr/CALA2025062705986), Jun 25, 2025: BATTERY PACK. DISCHARGED. EMERGENCY LIGHT BATTERY PACK AT M1694 FAILS 15 MIN CAPACITY. REMOVED AND REPLACED EMERGENCY BATTERY PACK M1694 IAW AMM 33-52-06-960-805.PARTS USED: 99-3351-3-00
- [SDR CALA2024121601539](https://openairdocs.org/sdr/CALA2024121601539), Dec 13, 2024: WARNING LIGHT. FALSE ACTIVATION. EQUIP DOOR LIGHT ON CLIMB OUT. PRESSURIZATIO N NORMAL. INSPECTED AND VERIFIED E&E DOOR INDICATION SENSOR OPERATES REF B737 AMM 52-71-42. NO DMG TO WIRING AND FA
- [SDR CALA2024121101473](https://openairdocs.org/sdr/CALA2024121101473), Dec 8, 2024: RETAINER. LOOSE. DOOR 1L GIRT BAR CLIP ON DOOR LOOSE INSPECTED DOOR 1L GIRT BAR CLIPS ON THE DOOR, NO FAULTS FOUND, GIRT BAR SECURED IN PLACE REF AMM 52-11-00
- [SDR CALA2024081600441](https://openairdocs.org/sdr/CALA2024081600441), Aug 14, 2024: WINDSCREEN. LEAKING. FO WINDSCREEN STARTED SQUEALING PASSING 10000 FEET AND AGAIN UP ON ACCELERATING THROUGH LOCKING UNLOCKED FOR SIGN OFF THIS ITEM HAS BEEN CLEARED IN REF ON LOGPA
- [SDR CALA2024081502223](https://openairdocs.org/sdr/CALA2024081502223), Aug 14, 2024: WINDSHIELD. UNSECURE. ON ROTATION SPEEDTAPE ON WINDOW COMING OFF. REAPPLIED SPEEDTAPE TEMP REPAIR REF LP 8925960 FOUND CO- PILOT WINDSHIELD SEALANT NOT CURED FROM RECENT WINDSHIELD R
- [SDR CALA2024040200920](https://openairdocs.org/sdr/CALA2024040200920), Mar 29, 2024: DOOR. OUT OF ADJUST. AFT ENTRY DOOR LIGHT ILLUMINATED TWICE DURING FLIGH WITH CORRESP ONDING DOOR HANDLE MOVEMENT. AFT L2 DOOR HANDLE FEELS SOFT WHILE CLOSED. CLOSED AFT L2 DOOR FRO
- [SDR CALA2024030500640](https://openairdocs.org/sdr/CALA2024030500640), Mar 2, 2024: ANTI-ICE VALVE. FAULTED. PER FLIGHT CREW #1 ENGINE ANTI-ICE FAULT LIGHT ILLUMINATED. REMOVED AND REPLACED ENGINE 1 NOSE COWL THERMAL ANTI ICE VALVE PER AMM 30-21-11. OPS AND LEAK CHECK 
- [SDR CALA2024011900149](https://openairdocs.org/sdr/CALA2024011900149), Jan 16, 2024: BEARING. OVERTORQUED. AFT ENTRY LIGHT ON AT TAKEOFF ROLL THEN INTERMITTENTLY AND FA REPORTED HANDLE LOOSE AFTER CREW DEBRIEF IT WAS REPORTED THAT DOOR WITH THE PROBLEM IS DOOR 2L. FO
- [SDR CALA2023091502798](https://openairdocs.org/sdr/CALA2023091502798), Sep 12, 2023: BATTERY. INOPERATIVE. DURING BATTERY CAPACITY CHECK, ALL BATTERY PACKS FAILED CAPACITY CHECK, REF TO PEMCO NR 14093.0034. REMOVED AND REPLACED BATTERY PACK IAW B737 AMM 33-51-06. OPS
- [SDR CALA2023091502797](https://openairdocs.org/sdr/CALA2023091502797), Sep 12, 2023: BATTERY. INOPERATIVE. DURING BATTERYPACK CAPACITY CHECK, ALL BATTERY PACKS FAILED CAPACITY CHECK, REF TO PEMCO NR 14093.0034 REMOVED AND REPLACED BATTERY PACK. OPS CHECK GOOD IAW B73
- [SDR CALA2023091502796](https://openairdocs.org/sdr/CALA2023091502796), Sep 12, 2023: BATTERY. INOPERATIVE. DURING BATTERY PACK CAPACITY CHECK, ALL BATTERY PACKS FAILED CAPACITY CHECK. REF TO PEMCO NR 14093.0034 REMOVED AND REPLACED EMERGENCY BATTERY PACK IAW B737 AMM
- [SDR CALA2023091502795](https://openairdocs.org/sdr/CALA2023091502795), Sep 12, 2023: BATTERY. INOPERATIVE. DURING BATTERY PACK CAPACITY CHECK, ALL BATTERY PACKS FAILED CAPACITY CHECK. REF TO PEMCO NR 14093.0034 REMOVED AND REPLACED BATTERY PACK IAW B737 AMM 33-51-06 
- [SDR CALA2023091502794](https://openairdocs.org/sdr/CALA2023091502794), Sep 12, 2023: BATTERY. INOPERATIVE. DURING BATTERY PACK CAPACITY CHECK, ALL BATTERY PACKS FAILED CAPACITY CHECK. REF TO PEMCO NR 14093.0034 REMOVED AND REPLACED BATTERY PACK IAW B737 AMM 33-51-06 
- [SDR CALA2023091502793](https://openairdocs.org/sdr/CALA2023091502793), Sep 12, 2023: BATTERY. INOPERATIVE. DURING BATTERY PACK CAPACITY CHECK, ALL BATTERY PACKS FAILED CAPACITY CHECK. REF TO PEMCO NR 14093.0034 REMOVED AND REPLACED BATTERY PACK IAW B737 AMM 33-51-06 
- [SDR CALA2023091502792](https://openairdocs.org/sdr/CALA2023091502792), Sep 12, 2023: BATTERY. INOPERATIVE. DURING BATTERY PACK CAPACITY CHECK, ALL BATTERY PACKS FAILED CAPACITY CHECK. REF TO PEMCO NR 14093.0034 REMOVED AND REPLACED BATTERY PACK IAW B737 AMM 33-51-06 
- [SDR CALA2023091402781](https://openairdocs.org/sdr/CALA2023091402781), Sep 12, 2023: BATTERY PACK. NO TEST. DURING BATTERY CAPACITY CHECK, ALL BATTERY PACKS FAILED CAPACITY CHECK. REF TO PEMCO NR 14093.0034 REMOVED AND REPLACED BATTERY PACK IAW B737 AMM 33-51-06 OPS C
- [SDR CALA2023091302764](https://openairdocs.org/sdr/CALA2023091302764), Sep 12, 2023: STIFFENER. CRACKED. (EA5510-01843 REV H) RH HORZ STAB, STAB STA 111.10 STIFFENER 2 CRACKED AT TRANSITION RADIUS. REF TO PEMCO NR 14093.0561. REPAIRED RH HORZ STAB AT STA 111-10 VER
- [SDR CALA2023091302763](https://openairdocs.org/sdr/CALA2023091302763), Sep 12, 2023: STRINGER. CRACKED. (EA 5510-01843 REV H) RH HORIZ STAB, STAB STA 129.5 3 CRACKED AT TRANSITION RADIUS. REF TO PEMCO NR 14093.0560 ENTERED BY V927860, INSPECTED BY V927860 REPAIRED
- [SDR CALA2023091102754](https://openairdocs.org/sdr/CALA2023091102754), Sep 10, 2023: SKIN. CRACKED. CUSTOMER REQUEST L2 DOOR LOWER INNER SKIN CRACKED. REF TO PEMCO NR 14093.0721 REMOVED, FABRICATED AND INSTALL NEW LOWE INNER SKIN FROM L-2 DOOR. IAW B737-800 SR
- [SDR CALA2023091102753](https://openairdocs.org/sdr/CALA2023091102753), Sep 10, 2023: BULKHEAD. CRACKED. LH WHEEL WELL, UPPER FWD BULKHEAD AT APPROX LBL42 CRACKED. REF TO PEMCO NR 14093.0059 P 5. REPAIR REQUIRES HFEC (REF SRM 57-10-10-2R-3 STEP & (B) FOR OF REP
- [SDR CALA2023090802742](https://openairdocs.org/sdr/CALA2023090802742), Sep 6, 2023: SKIN. CRACKED. CUSTOMER REQUEST L2 DOOR LOWER INNER SKIN CRACKED. REF TO PEMCO NR 14093.0721 REMOVED, FABRICATED AND INSTALL NEW LOWE INNER SKIN FROM L-2 DOOR. IAW B737-800 SR
- [SDR CALA2023090802739](https://openairdocs.org/sdr/CALA2023090802739), Sep 1, 2023: BULKHEAD. CRACKED. LH WHEEL WELL, UPPER FWD BULKHEAD AT APPROX LBL42 CRACKED. REF TO PEMCO NR 14093.0059 P 5. REPAIR REQUIRES HFEC (REF SRM 57-10-10-2R-3 STEP & (B) FOR OF REP
- [SDR CALA2023090402703](https://openairdocs.org/sdr/CALA2023090402703), Sep 1, 2023: BULKHEAD. CRACKED. LH WHEEL WELL, UPPER FWD BULKHEAD AT APPROX LBL42 CRACKED. REF TO PEMCO NR 14093.0059 STEP 5. WORK PERFORMED BY V907635, ENTERED BY V927860 INSPECTED BY Q873. R
- [SDR CALA2023082102585](https://openairdocs.org/sdr/CALA2023082102585), Aug 19, 2023: UNKNOWN. CORRODED. SUPPORT TASK B737-53-3-0737-AFT- AFT CABIN WET AREA CABIN R-2 DOOR THRESHOLD SUPPORT CORROED STA 947 THRU STA 990 DOTS 921-35 REF TO PEMCO NR 14093.0506. REMOVE
- [SDR CALA2023050501358](https://openairdocs.org/sdr/CALA2023050501358), May 3, 2023: SMOKE DETECTOR. UNKNOWN. AFT LAV L SMOKE ALARM ACTIVATED FOR 30SEC NOTICED SLIGHT ELECTRI CAL SMELL NOTED WITH NO SMOKE AND NO FIRES FOUND INSIDE LAVATORY WASTE GALLEY INSPECTION AS REQ
- [SDR CALA2023040601057](https://openairdocs.org/sdr/CALA2023040601057), Apr 6, 2023: TRANSMITTER. UNKNOWN. TRAILING EDGE FLAP DISAGREE..FLAPS STOPPED AT 25 PREFORMED QRH REMOVED FLAP POSITION TRANSMITTER IAW AMM 27-58-000-801,DID TRAILING EDGE FLAP SYSTEM MANUAL OPER
- [SDR CALA2023010900064](https://openairdocs.org/sdr/CALA2023010900064), Jan 9, 2023: HMU. INOPERATIVE. LEFT ENGINE UNABLE TO PRODUCE MORE THAN 90.1 WITH A REQUEST FOR MAX RIGHT ENG 100.3 CLOSE TO 80 DEGREES AT IDLE. REMOVED MAIN FUEL PUMP. INSTALLED NR 1 HMU IAW 
- [SDR CALA2021122702449](https://openairdocs.org/sdr/CALA2021122702449), Dec 27, 2021: OIL FILTER. BYPASSING. ENG1 OIL FILTER BYPASS LIGHT ON TO REPLACE EDP AND SEALOL FOR DRIVE PAD. PER CREW DBRIEF BYPASS LIGHT REMAINED ILLUMINATED AT ALL POWER PULLED CHIP DETECTORS FO
- [SDR CALA2021121002339](https://openairdocs.org/sdr/CALA2021121002339), Dec 10, 2021: NONE. FAILED. SPEED TRIM FAIL LIGHT ON .REMOVED AND REPLACED HORIZONTAL STAB TRIM MOTOR REF AMM 27-14-71. OPS CHKS GOOD
- [SDR CALA2020062901033](https://openairdocs.org/sdr/CALA2020062901033), Jun 27, 2020: PRESSURE DECK. CRACKED. PRESSURE DECK HAS CRACK AT STA 663.75 AND RBL 43 JUST BELOW FLOOR BOARDS. REF FLEET CYCLE NR 9746952. REPAIRED VERTICAL PRESSURE WEB REF SRM57-10-10 REPAIR 3 AL
- [SDR CALA2020062201024](https://openairdocs.org/sdr/CALA2020062201024), Jun 22, 2020: SKIN. CRACKED. LH HORIZONTAL STAB LOWER SKIN AT STA 184.70 SHOW A CRACK FWD TO AFT , ABOUT 1 INCH LONG . REPAIRED LH HORIZONTAL STAB SKIN AT STA 184.70 IN REF SRM 55 -10-01 RE
- [SDR CALA2020062201023](https://openairdocs.org/sdr/CALA2020062201023), Jun 22, 2020: SKIN. CRACKED. RT HORIZONTAL STAB LOWER SKIN ST STA 120.30 SHOWS A CRACK FWD TO AFT APROX 1 INCH IN LENGHT. REPAIRED RH HORIZONTAL STAB LOWER SKIN AT STA 120.30 IN REF SRM 55-
- [SDR CALA2020062201022](https://openairdocs.org/sdr/CALA2020062201022), Jun 21, 2020: SKIN. CRACKED. LEFT HORIZONTAL STAB LOWER SKIN AT STA 157.10 SHOW CRACK FWD TO AFT APPROX ONE INCH LENGHT. REPAIRED LH HORIZONTAL STAB CRACK AT STA 157.10 IN REF SRM 55-10-01 
- [SDR CALA2017080802509](https://openairdocs.org/sdr/CALA2017080802509), Aug 6, 2017: RIB. CRACKED. LEFT HORIZONTAL STABILIZER RIB AT HSS 120 HAS A CRACK AT SECOND STIFFENER FROM THE FRONT. INSTALLED A REPAIR IAW SRM 55-10-09, FIG 202, REPAIR 4.
- [SDR CALA2017080802466](https://openairdocs.org/sdr/CALA2017080802466), Jul 31, 2017: RIB. CRACKED. LEFT HORIZONTAL STABILIZER RIB AT HSS 120 HAS A CRACK AT THIRD STIFFENER FROM THE FRONT. INSTALLED A REPAIR IAW SRM 55-10-09, FIG 202, REPAIR 4.
- [SDR CALA2017063002046](https://openairdocs.org/sdr/CALA2017063002046), Jun 30, 2017: LENS. MISSING. LIGHTED EXIT SIGN IN REAR OF AIRCRAFT NEAR LIFE RAFT MISSING THE LENS. INSTALLED THE LENS.
- [SDR CALA2017040400836](https://openairdocs.org/sdr/CALA2017040400836), Apr 4, 2017: SIGN. DETACHED. EXIT SIGN OVER STOWAGE AREA 425, AFT LIFE RAFT, HAS FALLEN FROM CEILING. REINSTALLED EXIT SIGN COVER.
- [SDR CALA2017031000569](https://openairdocs.org/sdr/CALA2017031000569), Mar 10, 2017: FITTING. BROKEN. EMERGENCY EXIT LITE ABOVE FLIGHT DECK DOOR HAS A BROKEN CLIP AND WILL NOT STAY ON. REPLACED LITE ASSY OP CHKS NORMAL.
- [SDR CALA2016030300142](https://openairdocs.org/sdr/CALA2016030300142), Mar 3, 2016: POWER SUPPLY. INOPERATIVE. EMERGENCY EXIT LIGHTS ROWS 23 - 31 INOPERATIVE. REPLACED LT MID-SECTION BATTERY SUPPLY & BATTERY AT STATION 727 IAW MM 33-51-06 & TESTED OK.
- [SDR CALA2015051500399](https://openairdocs.org/sdr/CALA2015051500399), May 14, 2015: RIB. CRACKED. RIGHT STAB IN SPAR RIB STIFFENER NR 2 AT STATION 92.70 IAW STEP 2 A CRACKED. REPAIRED CRACKS IN RIB IAW SRM 55-10-09 REPAIR 4 REF NR 9743184. INSTALLED EXTERNAL
- [SDR CALA2012073000477](https://openairdocs.org/sdr/CALA2012073000477), Jul 29, 2012: SKIN. CRACKED. LT HORIZONTAL STAB LOWER SKIN IS CRACKED AT INBD FLANGE OF STA 129. 5, RIB 18" AFT OF FWD SPAR. CRACK IS APPROX 2.5" LONG CUT OUT DAMAGE AND INSTALLED REPAIR PA

## STCs that may be installed (OpenAirDocs) (786, 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 737-824)

- [STC ST03438NY](https://openairdocs.org/stc/ST03438NY): Installation of Adams Rite Lavatory Equipment. Delta Engineering Corporation
- [STC ST04116NY](https://openairdocs.org/stc/ST04116NY): Update of a Cabin Interior. 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 ST02528LA](https://openairdocs.org/stc/ST02528LA): Installation of the Thales Avionics, Inc. Data Transfer Device (DTD) or Solid State Drive (SSD) into the existing Cabin Media Loader (CML). Thales Avionics Inc
- [STC ST12443LA](https://openairdocs.org/stc/ST12443LA): Installation of Teledyne Controls Edge Computing Platform (ECP). Teledyne Controls, LLC
- [STC ST12432IB](https://openairdocs.org/stc/ST12432IB): Installation of Acro Series 9 Seats Economy Class Seats in 189 Y/C layout. KNSI AVIATION ENGINEERING EUROPE LTD
- [STC ST10477SC](https://openairdocs.org/stc/ST10477SC): Installation of two Interior configurations in Boeing 737-8EX (MSN 33473). Jet Aviation St. Louis Inc
- [STC ST09853DS](https://openairdocs.org/stc/ST09853DS): Dual Radome Aerodynamic Validation. United Airlines
- [STC ST04254NY](https://openairdocs.org/stc/ST04254NY): Installation of Viasat Satcom Software. ALOFT AeroArchitects
- [STC ST02666LA](https://openairdocs.org/stc/ST02666LA): Installation of main deck cargo loading system. Ancra International LLC
- [STC ST04281NY](https://openairdocs.org/stc/ST04281NY): Replacement of Aft Lavatories. B/E Aerospace 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 ST02690LA](https://openairdocs.org/stc/ST02690LA): Conversion of a Boeing 737-800 series passenger configuration to a freighter configuration, incorporating a new main deck cargo door, interior, and associated systems. Aeronautical Engineers Inc
- [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 ST02747LA](https://openairdocs.org/stc/ST02747LA): Installation of the Thales Digital Server Unit. Thales Avionics, Inc
- [STC ST00555AT](https://openairdocs.org/stc/ST00555AT): Installation of Airshow 210 system. AIRCRAFT RECONFIG TECHNOLOGIES, LLC. Lists 737 Series
- [STC ST02347AT-D](https://openairdocs.org/stc/ST02347AT-D): Installation of Collins HF Transceivers. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03197AT](https://openairdocs.org/stc/ST03197AT): Interior reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03200AT](https://openairdocs.org/stc/ST03200AT): Complete interior reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [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 ST03816AT-D](https://openairdocs.org/stc/ST03816AT-D): Installation of an Interior Reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04167AT](https://openairdocs.org/stc/ST04167AT): Interior Reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04197AT](https://openairdocs.org/stc/ST04197AT): Cabin interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04207AT](https://openairdocs.org/stc/ST04207AT): Cabin interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04208AT](https://openairdocs.org/stc/ST04208AT): Panasonic IFE Upgrade installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04250AT](https://openairdocs.org/stc/ST04250AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04271AT](https://openairdocs.org/stc/ST04271AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04280AT](https://openairdocs.org/stc/ST04280AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04363AT](https://openairdocs.org/stc/ST04363AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04383AT](https://openairdocs.org/stc/ST04383AT): Interior reconfiguration installation on a Boeing 737-800 Series aircraft. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04389AT](https://openairdocs.org/stc/ST04389AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04392AT](https://openairdocs.org/stc/ST04392AT): Main Cabin Cargo Carry Provisions installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04395AT](https://openairdocs.org/stc/ST04395AT): Interior Reconfiguration installation. ZIM Aircraft Cabin Solutions LLC
- [STC ST04396AT](https://openairdocs.org/stc/ST04396AT): Interior Reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04397AT](https://openairdocs.org/stc/ST04397AT): Interior Reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04496AT](https://openairdocs.org/stc/ST04496AT): Interior Reconfiguration. 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 ST04667CH](https://openairdocs.org/stc/ST04667CH): Installation of Southwest Airlines Interior Reconfiguration for Extended Leg Room (ELR) Cabin. Astronics Connectivity Systems and Certification Corp
- [STC ST03735NY](https://openairdocs.org/stc/ST03735NY): Installation of a ViaSat KA SATCOM Antenna System. ALOFT AeroArchitects
- [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 ST04593CH](https://openairdocs.org/stc/ST04593CH): Installation of Astronics EmPower In-Seat Power System. Astronics Connectivity Systems and Certification Corp
- [STC ST03875NY](https://openairdocs.org/stc/ST03875NY): Installation of interior placards, signs and markings. Libellule Monde Inc
- [STC ST03405NY](https://openairdocs.org/stc/ST03405NY): Installation (with demod option) of an Connectivity Antenna. Delta Engineering Corporation
- [STC ST02575SE](https://openairdocs.org/stc/ST02575SE): Installation of an In-Seat Power Supply System. Northwest Aerospace Technologies Inc

All 786: https://openairdocs.org/aircraft/N78509/stcs.md

## Earlier aircraft with N78509

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N78509 before.

- [Cancelled 1975-09-26](https://openairdocs.org/deregistered/N78509-1975-09-26): Cessna 182P, S/N 18261766. Owner: [Yoder Glen A](https://openairdocs.org/faa-owner/YODER%20GLEN%20A), [Scottsdale, AZ](https://openairdocs.org/faa-place/AZ/Scottsdale)

## Related

- Other Boeing 737-824 aircraft: https://openairdocs.org/model/boeing-737-824/aircraft.md
- The CFM International CFM56-7B27/B3 series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b27-b3-series.md

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