# N78506: 2006 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 CFM56-7B26 series](https://openairdocs.org/engine/cfm-international-cfm56-7b26-series) (registry code 13045)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company) (OpenAirDocs)
- Serial number: 32832
- Year built: 2006
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: October 21, 2006
- Certificate issued: October 24, 2006
- Expires: July 31, 2028
- Mode S code: AAA590
- 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=78506
- Page: https://openairdocs.org/aircraft/N78506

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 CFM56-7B26 model are included.

## ADs that may apply (OpenAirDocs): 346 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 CFM56-7B26 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
- [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

### 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 409: https://openairdocs.org/aircraft/N78506/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 N78506.

## FAA accident and incident reports

None matched to N78506.

## Service difficulty reports (55, 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 CALA2026081118475](https://openairdocs.org/sdr/CALA2026081118475), Aug 10, 2026: LIGHT. INOPERATIVE. EMERGENCY PATHWAY LIGHTING, RED LT AFT INOPERATIVE. REMOVED AND REPLACED THE EMERGENCY LIGHT IAW CMM 3351DD15945.
- [SDR CALA2026011412947](https://openairdocs.org/sdr/CALA2026011412947), Jan 12, 2026: DOOR. UNKNOWN. PILOT REPORTED L2 DOOR OPENED WHILE ESCAPE DOOR GIRT ENGAGED, DOOR POPPED IN ABOUT 1-2 INCHES, PERFORMED INSP ON L2 DOOR ESCAPE SLIDE, FOUND NO GIRT MATERIAL CA
- [SDR CALA2025100909840](https://openairdocs.org/sdr/CALA2025100909840), Oct 7, 2025: BLADE. OUT OF LIMITS. DURING WALK AROUND, FOUND FAN BLADE TIP OF NR 2 ENG BENT. ON FURTHER INSPECTION IAW AMM 72-21-02-200-801-F00, FOUND ORIGINAL BLADE NR 8 TO BE OUT OF LIMITS. IN 
- [SDR CALA2025100209528](https://openairdocs.org/sdr/CALA2025100209528), Oct 2, 2025: LIGHT SYS. INOPERATIVE. EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK. FLOOR PROXIMITY LIGHTS OF THE CABIN COMPARTMENT AT ISLES 34, 35, 36, 37, AND 38 DO NOT COME ON WHEN PERFORMING OPS 
- [SDR CALA2025092909356](https://openairdocs.org/sdr/CALA2025092909356), Sep 25, 2025: BOTTLE. LOW PRESSURE. PRESSURE GAUGE ON DOOR SLIDE AT DOOR 1R IS ON THE BORDER OF RED/ GREEN. NEEDLE IS NO MORE THAN NEEDLE WIDTH TO RIGHT OF GO BAND REF AMM TASK 25-66-01-200-801
- [SDR CALA2025091708989](https://openairdocs.org/sdr/CALA2025091708989), Sep 15, 2025: SKIRT. OUT OF POSITION. GIRT BAR SKIRT HANGING OUT. REINSTALLED SKIRT IN COVER IAW AMM 25-66-01-000-804.
- [SDR CALA2025091508877](https://openairdocs.org/sdr/CALA2025091508877), Sep 13, 2025: BATTERY PACK. INOPERATIVE. EMERGENCY FLOOR PROXIMITY LIGHT ON ROWS 1 THRU 4 DO NOT COME ON. REMOVED AND REPLACED BATTERY PACK FWD POWER SUPPLY IAW AMM TASK 33-51-06-960-805. PERFORMED TES
- [SDR CALA2025091108759](https://openairdocs.org/sdr/CALA2025091108759), Sep 9, 2025: NUT PLATE. BROKEN. DOOR 1R AFT GIRT BAR FITTING ON FLOORBAORD HAS 2 EACH BROKEN NUT PLATES. NEEDED 2 EACH INSTALLED EACH AFT GIRT BAR INSERTS BROKEN. REMOVED AND INSTALLED NEW INS
- [SDR CALA2025091008702](https://openairdocs.org/sdr/CALA2025091008702), Sep 6, 2025: INSERT. BROKEN. REMOVED R2 DOOR FLOOR MOUNTED ESCAPE SLIDE BRACKET FOM REF AMM 25-66-02-000-801. THIS ITEM REQUIRES INSPECTION 2 EACH AFT GIRT BAR INSERTS BROKEN. REMOVED AND I
- [SDR CALA2025082808243](https://openairdocs.org/sdr/CALA2025082808243), Aug 27, 2025: SKIN. GROUND DAMAGE. RAMP REPORTS JETWAY STRUCK ACFT ON INBD AS JETWAY PULLED OFF REVI LDED LAST DENT. DETAILED INSPECTION OF DENTED AREA INSIDE AND OUTSIDE. NO CRACKS GOUGES OR DAM
- [SDR CALA2025082107989](https://openairdocs.org/sdr/CALA2025082107989), Aug 18, 2025: STRAP. OUT OF POSITION. 20A EMERGENCY EXIT. HOOK AND LOOP WEAK ON DOOR PANEL. FOUND RED STRAP FOR OVER WING HATCH OUT OF IS POCKET AND LAYING ACROSS HOOK AND LOOP. TUCKED RED STRAP BAC
- [SDR CALA2025080607378](https://openairdocs.org/sdr/CALA2025080607378), Aug 3, 2025: SLIDE. NO DISCREPANCY. 1B SLIDE PRESS IN RED NEEDLE IS NOT PAST THICKNESS OF NEEDLE TO THE RIGHT OF THE GREEN BAND. OK FOR USE REF AMM 25-66-01
- [SDR CALA2025070106126](https://openairdocs.org/sdr/CALA2025070106126), Jun 30, 2025: TRANSCEIVER. FAULTED. WX RADAR FAIL. CB RESET NO HELP. RADAR ON PANTS SMALL SLIVER A T 0100 CL OCK POS. VIDEO AVAILAB PERFORMED OPERATIONAL TEST OF WX RADAR REF MM 34-43-00-710-800-0
- [SDR CALA2025061605559](https://openairdocs.org/sdr/CALA2025061605559), Jun 13, 2025: SMOKE DETECTOR. FAULTED. AFT CABIN SMOKE DETECTOR IS MAKING NOISE UPON ARRIVAL NO DETECTOR GOING OFF DEBRIEFED FLIGHT CREW AND NO SMOKE OR SMELL NOTED.
- [SDR CALA2025061205489](https://openairdocs.org/sdr/CALA2025061205489), Jun 8, 2025: NONE. NONE. SLIDE PRESS. GAUGES IS NOT FULLY ON GREEN IVESTIGATED SLIDE PESSIRE GAUGE AT DOOR 2R, PER AMM REF TASK 25-66-01-200-801, SLIDE PRESSURE WITHIN LIMITS. OKAY TO P
- [SDR CALA2025061005423](https://openairdocs.org/sdr/CALA2025061005423), Jun 7, 2025: SLIDE. NO DISCREPANCY. 1R DOOR SLIDE PRESSURE GAUGE INDICATION ON LOW INDICATION SCALE VERIFIED DOOR SLIDE PRESSURE INDICATOR NEEDLE IS NOT MORE THAN ONE NEEDLE WIDTH TO THE RIGHT OF 
- [SDR CALA2025052004832](https://openairdocs.org/sdr/CALA2025052004832), May 16, 2025: SLIDE. EXPOSED. DOORS 1L AND 1R DIFFICUL T TO ARM DUE TO EXCESS SLIDE MATERIAL. INSPECTED BOTH 1L AND 1R DOOR SLIDES, FOUND MINIMAL EXCESS GIRT MATERIAL. TUCKED EXCESS GIRT MAT
- [SDR CALA2025031200486](https://openairdocs.org/sdr/CALA2025031200486), Mar 11, 2025: TERMINAL. BROKEN. DURING TROUBLESHOOTING, FOUND RING TERMINAL ON WIRE W0154-0040-20 BROKEN. SUPPORT TASK NSA EMX N/R 00192. INSTALLED NEW RING TERMINAL ON WIRE W0154-0040-20 IAW 
- [SDR CALA2025031200485](https://openairdocs.org/sdr/CALA2025031200485), Mar 11, 2025: FUSE. BLOWN. BULLNOSE EMERGENCY LIGHT ABOVE SEAT ROW 31DEF INOP. SUPPORT TASK NSA EMX N/R 00186. REMOVED AND REPLACED FUSE 3 & 4 ON BATTERY PACK M1672 IAW AMM 33-51-06-9
- [SDR CALA2025031302750](https://openairdocs.org/sdr/CALA2025031302750), Mar 10, 2025: FUSE. INOPERATIVE. SEAT 37 ABC EEPL CONNECTOR WIRE IS UNLOCKED EEPL CONNECTOR WIRE IS UNLOCKED/REMOVED AND REPLACED SEAT 37ABC EEPL SHIP SIDE CONNECTOR IAW WDM 33-51-14 AND SWPM 2
- [SDR CALA2025031302749](https://openairdocs.org/sdr/CALA2025031302749), Mar 10, 2025: ELEC CONNECTOR. DAMAGED. CONNECTOR D12350P/J FOUND DAMAGED/REMOVED AND REPLACED CONNECTOR D12350P IAW B737-800 WDM 33-51-21 AND SWPM 20-61-28. PERFORMED OPERATIONAL TEST OF EMERGENCY LI
- [SDR CALA2025020302176](https://openairdocs.org/sdr/CALA2025020302176), Jan 31, 2025: SLIDE. UNPACKED. DOOR 1R EMERGENCY EXIT SLIDE MATERIAL NEEDS REPACKED FOUND SLIDE MATERIAL EXCESSIVLY HANGING OUT REQUIRING REMOVAL OF SLIDE PACK, REMOVED SLIDE PACK IN REF WITH
- [SDR CALA2024110400993](https://openairdocs.org/sdr/CALA2024110400993), Nov 1, 2024: RADAR. FAULTED. GPWS INOP LIGHT ON NO CB'S TRIPPED UPON ARRIVAL. CYCLED GPWS CB B7 ON P18-1. ACP GPWS BITE REF AMM 34-46 TASK 801, NO CURRENT FAULTS OR FAULT HISTORY OPS CHK NO
- [SDR CALA2024110102761](https://openairdocs.org/sdr/CALA2024110102761), Oct 30, 2024: BATTERY. DISCHARGED. EMERGENCY ISLE LIGHTS BETWEEN ROW 15-31 A/C RIGHT INOP. REPLACED BATTERY IN M1671. ALL EMERGENCY LIGHTS OPERATE NORMALLY .
- [SDR CALA2023010600041](https://openairdocs.org/sdr/CALA2023010600041), Jan 4, 2023: SKIN. DENTED. FOUND MULTIPLE DENTS OUT OF LIMITS AT AFT LOWER FUSELAGE BETWEEN STA 927 AND STA 951 REF AAR N/R 9666597 ACCOMPLISHED REPAIR AT FUSELAGE SKIN FROM STA 927 TO ST
- [SDR CALA2023010400021](https://openairdocs.org/sdr/CALA2023010400021), Jan 4, 2023: SKIN. DENTED. FOUND MULTIPLE DENTS OUT OF LIMITS AT AFT LOWER FUSELAGE BETWEEN STA 927 AND STA 951. ACCOMPLISHED REPAIR AT FUSELAGE SKIN FROM STA 927 TO STA 951 S26R TO S27L 
- [SDR CALA2022113003253](https://openairdocs.org/sdr/CALA2022113003253), Nov 29, 2022: RIB. CRACKED. RIGHT HORIZONTAL STAB RIB NR 1 AT HSS 92.70 FOUND CRACKED AT STIFFENER NR 1 LWR END. INSTALLED A REPAIR AT RIB NR 1 IAW SRM 55-10-09-2R-4, REPAIR 4.
- [SDR CALA2022112503221](https://openairdocs.org/sdr/CALA2022112503221), Nov 25, 2022: RIB. CRACKED. R/H HORIZONTAL STAB RIB NO.1 AT STA 92.70 CRACKED AT STIFFENER NO.1 LWR END (REF AAR N/R 966430) INSTALLED REPAIR AT RIB NO.1 (STIFFENER NO.1) LOWER END AT R/H 
- [SDR CALA2022112303201](https://openairdocs.org/sdr/CALA2022112303201), Nov 21, 2022: SKIN. CRACKED. CRACK FOUND ON L/H HORIZONTAL STAB LOWER SKIN AT STAB STA 175.50 I/B ROW 10.5 IN FORM REAR SPAR CRACK LENGTH 0.5IN. SKIN AT STA 175.50. CUT OUT DAMAGE AREA. FAB
- [SDR CALA2022112303200](https://openairdocs.org/sdr/CALA2022112303200), Nov 21, 2022: SKIN. CRACKED. CRACK FOUND ON R/H HORIZONTAL STAB LOWER SKIN AT STAB STA 101.90 I/B ROW 11IN FROM REAR SPAR CRACK LENGH 1IN. SKIN AT STA 101.90. CUT OUT DAMAGE AREA. FABRICATE
- [SDR CALA2022112303199](https://openairdocs.org/sdr/CALA2022112303199), Nov 21, 2022: DOOR SILL. CRACKED. L-1 DOOR CUTOUT UPPER SILL FWD S-5L, STA 312 FUS SUPPORT FRAME CUTOUT FLANGE SMALL CRACK MKD DOT 60-011. INSP. ON CUT OUT AREA NO CRACK FOUND., FABRICATED ANGLE
- [SDR CALA2021032600375](https://openairdocs.org/sdr/CALA2021032600375), Mar 26, 2021: BLOWER. INOPERATIVE. ALL TOILETS WILL NOT FLUSH ON P91 PANEL AND CALL TOMC UPDATED MAA CODE FIX USING VENDOR MAA SCREEN PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. PLEASE CHECK 
- [SDR CALA2020121401371](https://openairdocs.org/sdr/CALA2020121401371), Dec 13, 2020: DRAIN LINE. DEPARTED. PDA 2 PDA 1 REF LOG PAGE 5598554, UPON ARRIVAL IN GUA APU DRAIN MAST WAS MISSING. IAD AIRPORT AUTHORITY FOUND DRAIN MAST ON RUNWAY. REMOVED AND REPLACED APU DRA
- [SDR CALA2019120702159](https://openairdocs.org/sdr/CALA2019120702159), Dec 6, 2019: BATTERY PACK. INOPERATIVE. OVERWING ESCAPE LEFT EMER LIGHT BATTERY NEEDS REPLACEMENT - WILL NOT CHARGE REMOVED & REPLACED OVERWIGN ESCAPE LEFT EMER LIGHT BATTERY IAW B 737 AMM 33-51-0
- [SDR CALA2019120702158](https://openairdocs.org/sdr/CALA2019120702158), Dec 6, 2019: BATTERY PACK. INOPERATIVE. FWD PASSENGER DOOR EMER LIGHT BATTERY NEEDS REPLACEMENT WILL NOT CHARGE REMOVED & REPLACED FWD PASSENGER DOOR EMER LIGHT BATTERY IAW B73 7 AMM 33-51-06-960-
- [SDR CALA2019120702157](https://openairdocs.org/sdr/CALA2019120702157), Dec 6, 2019: BATTERY PACK. INOPERATIVE. AFT PASSENGER DOOR EMER LIGHT BATTERY NEEDS REPLACEMENT - WILL N OT CHARGE REMOVED & REPLACED AFT PASSENGER DOOR EMER LIGHT BATTERY IAW B73 7 AMM 33-51-06-9
- [SDR CALA2019120702156](https://openairdocs.org/sdr/CALA2019120702156), Dec 6, 2019: BATTERY PACK. INOPERATIVE. AFT PASSENGER DOOR EMER LIGHT BATTERY NEEDS REPLACEMENT - WILL N OT CHARGE REMOVED & REPLACED AFT PASSENGER DOOR EMER LIGHT BATTERY IAW B73 7 AMM 33-51-06-9
- [SDR CALA2019120702155](https://openairdocs.org/sdr/CALA2019120702155), Dec 6, 2019: BATTERY PACK. INOPERATIVE. OVERWING ESCAPE RT EMER LIGHT BATTERY NEEDS REPLACEMENT - WILL N OT CHARGE REMOVED & REPLACED OVERWING ESCAPE EMER LIGHT BATTERY (RIGHT) IA W B737 AMM 33-51
- [SDR CALA2019120702154](https://openairdocs.org/sdr/CALA2019120702154), Dec 6, 2019: BATTERY PACK. INOPERATIVE. FWD PAX DOOR EMER LIGHT BATTERY NEEDS REPLACEMENT-WILL NOT CHARG E REMOVED AND REPLACED FWD PASSENGER DOOR EMR LIGHT BATTERY IAW B7 37 AMM 33-51-06-960-805 SUBT
- [SDR CALA2019120762151](https://openairdocs.org/sdr/CALA2019120762151), Dec 5, 2019: BATTERY PACK. INOPERATIVE. EMERGENCY LIGHTS BATTERY NEEDS REPLACEMENT WILL NOT HOLD CHARGE REMOVED AND REPLACED EMERGENCY LIGHT BATTERIES IAW AMM 33-51-06- 960-805 SUBTASK 33-51-06-710-00
- [SDR CALA2019120322103](https://openairdocs.org/sdr/CALA2019120322103), Nov 23, 2019: SKIN. CRACKED. N/R 6724821: EA 5510-01843 REV H R/H HORIZONTAL STAB LWR SURFACE STA 184.7 APPROX 25.5" AFT OF SKIN L.E. HAS .5" CRACK REVEALED DURING C-SCAN. REPAIRED DAMAGE O
- [SDR CALA2018112102407](https://openairdocs.org/sdr/CALA2018112102407), Nov 20, 2018: LIGHT. DAMAGED. 20ABC EXIT ROW LIGHT PUSHED IN AND DOES NOT ILLUMINATE. REMOVED AND REPLACED SEAT MOUNTED EMERGENCY EXIT LIGHT AT 20 ABC.
- [SDR CALA2018020200448](https://openairdocs.org/sdr/CALA2018020200448), Feb 2, 2018: LIGHT. INOPERATIVE. RT OVERWING FWD EXTERIOR EMERG EGRESS LIGHT IS INOP RELAMPED, OPS CK NORMAL REF AMM33-00-00.
- [SDR CALA2016121901119](https://openairdocs.org/sdr/CALA2016121901119), Dec 19, 2016: BATTERY. DISCHARGED. EMERGENCY FLASHLIGHT AT 2R HAS DEAD BATTERY. REPLACED BATTERY, OP CHECKED GOOD.
- [SDR CALA2016112500965](https://openairdocs.org/sdr/CALA2016112500965), Nov 25, 2016: LIGHT. INOPERATIVE. EMERGENCY LIGHT TEST. EEL AFT OF RIGHT WING IS INOP. RELAMPED OPS CHECKS GOOD.
- [SDR CALA2016103100834](https://openairdocs.org/sdr/CALA2016103100834), Oct 29, 2016: SKIN. DAMAGED. CREASE ON FUSELAGE SKIN AT BS 1040 AT STRINGER 20L FORWARD OF TAIL COMPARTMENT OPENING. COMPLIED WITH ECRA 5330-05818.
- [SDR CALA2016103100833](https://openairdocs.org/sdr/CALA2016103100833), Oct 28, 2016: FRAME. BENT. BELTFRAME BENT IN AFT DIRECTION BS 1040 STRINGERS 12 - 14L. INSTALLED ZEE FRAME REPAIR.
- [SDR CALA2016101000746](https://openairdocs.org/sdr/CALA2016101000746), Oct 10, 2016: FLOORBEAM. CORRODED. CABIN FLOORBEAM TED CAP CORROSION AT BS 947, LBL 50. REMOVED AND REPLACED THE TEE IAW SRM. 53-70-51, REPAIR 5, ALTERNATIVE 2
- [SDR CALA2014040900436](https://openairdocs.org/sdr/CALA2014040900436), Apr 8, 2014: SKIN. CRACKED. REF CRACKS AT HORIZONTAL STAB LOWER SKIN STATION 129.5, APPROXIMATELY 10.5 INCHES & 18.5 INCHES FROM AFT END OF REAR SPAR REPAIRED IAW SRM 55-10-01 REPAIR 11 TB
- [SDR CALA2014040900435](https://openairdocs.org/sdr/CALA2014040900435), Apr 8, 2014: SKIN. CRACKED. REF CRACK AT HORIZONTAL STAB STATION 147.9, APPROXIMATELY 10.5 INCHES FROM AFT END OF REAR SPAR, REPAIRED IAW SRM 55-10-01 REPAIR 11 TBL 204 PG 212.

All 55: https://openairdocs.org/aircraft/N78506/reports.md

## 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/N78506/stcs.md

## Earlier aircraft with N78506

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N78506 before.

- [Cancelled 1989-03-21](https://openairdocs.org/deregistered/N78506-1989-03-21): Cessna 172K, S/N 17257643. Triennial form not returned

## Related

- Other Boeing 737-824 aircraft: https://openairdocs.org/model/boeing-737-824/aircraft.md
- The CFM International CFM56-7B26 series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b26-series.md

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