# N640CS: Boeing 737-400

- Status: Valid registration
- Airframe: [Boeing 737-400](https://openairdocs.org/model/boeing-737-400) (registry code 138449A, 190 seats)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company) (OpenAirDocs)
- Serial number: 26078
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Certificate issued: September 4, 2025
- Expires: September 30, 2032
- Mode S code: A8657E
- Registered owner: [Csds Asset Management LLC](https://openairdocs.org/faa-owner/CSDS%20ASSET%20MANAGEMENT%20LLC)
- Location: [Marana, AZ](https://openairdocs.org/faa-place/AZ/Marana)
- Owner type: LLC
- Owner's area on the map: 32.5159° N, 111.1526° W: Placed by OpenAirDocs at the center of ZIP code 85658, within about 8 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=640CS
- Page: https://openairdocs.org/aircraft/N640CS

From the FAA registry file of October 21, 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.

## ADs that may apply (OpenAirDocs): 412 in force

### Matched by airframe (Boeing 737-400)

- [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 2026-09-12](https://openairdocs.org/ad/2026-09-12): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jun 17, 2026
- [AD 2025-02-02](https://openairdocs.org/ad/2025-02-02): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Mar 17, 2025
- [AD 2024-23-03](https://openairdocs.org/ad/2024-23-03): Flight controls · Boeing 737-300 Series and 737-400 Series. Effective Jan 6, 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 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 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2022-25-15](https://openairdocs.org/ad/2022-25-15): Wings · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jan 26, 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 2022-21-05](https://openairdocs.org/ad/2022-21-05): Auto flight · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Nov 10, 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 2021-26-03](https://openairdocs.org/ad/2021-26-03): Fuselage · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Feb 22, 2022
- [AD 2021-25-05](https://openairdocs.org/ad/2021-25-05): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Feb 22, 2022
- [AD 2021-10-11](https://openairdocs.org/ad/2021-10-11): Wings · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jul 29, 2021
- [AD 2021-08-14](https://openairdocs.org/ad/2021-08-14): Auto flight · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Jun 2, 2021
- [AD 2021-08-12](https://openairdocs.org/ad/2021-08-12): Wings · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective May 28, 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 2020-26-09](https://openairdocs.org/ad/2020-26-09): Wings · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jan 27, 2021
- [AD 2020-26-04](https://openairdocs.org/ad/2020-26-04): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jan 25, 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 2020-17-04](https://openairdocs.org/ad/2020-17-04): Equipment/furnishings · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Sep 29, 2020
- [AD 2020-14-03](https://openairdocs.org/ad/2020-14-03): Wings · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Aug 27, 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 2020-02-16](https://openairdocs.org/ad/2020-02-16): Fuselage · Boeing 737-200 Series, 737-200C Series, 737-300 Series and 2 more. Effective Mar 18, 2020
- [AD 2019-23-16](https://openairdocs.org/ad/2019-23-16): Wings · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Feb 3, 2020
- [AD 2019-25-55](https://openairdocs.org/ad/2019-25-55): Equipment/ Furnishings · Boeing 737-300 Series, 737-400 Series and 737-700 Series with STC ST01566LA or 2 others. Effective Jan 21, 2020
- [AD 2019-23-14](https://openairdocs.org/ad/2019-23-14): Nitrogen Generation System · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jan 21, 2020
- [AD 2019-19-10](https://openairdocs.org/ad/2019-19-10): Fuel · Boeing 737-300 Series, 737-400 Series, 737-500 Series and 21 more. Effective Jan 16, 2020
- [AD 2019-23-12](https://openairdocs.org/ad/2019-23-12): Wings · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Jan 13, 2020
- [AD 2019-16-12](https://openairdocs.org/ad/2019-16-12): Wings · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Oct 9, 2019
- [AD 2019-15-07](https://openairdocs.org/ad/2019-15-07): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Sep 19, 2019
- [AD 2019-14-15](https://openairdocs.org/ad/2019-14-15): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Sep 19, 2019
- [AD 2019-14-02](https://openairdocs.org/ad/2019-14-02): Hydraulic power · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 11 more. Effective Aug 27, 2019
- [AD 2019-13-02](https://openairdocs.org/ad/2019-13-02): Fuselage · Boeing 737-200 Series, 737-200C Series, 737-300 Series and 2 more. Effective Aug 23, 2019
- [AD 2019-10-03](https://openairdocs.org/ad/2019-10-03): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jul 11, 2019
- [AD 2019-09-01](https://openairdocs.org/ad/2019-09-01): Ice and rain protection · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jun 26, 2019
- [AD 2019-08-03](https://openairdocs.org/ad/2019-08-03): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jun 17, 2019
- [AD 2019-08-02](https://openairdocs.org/ad/2019-08-02): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jun 13, 2019
- [AD 2019-03-24](https://openairdocs.org/ad/2019-03-24): Fuselage · Boeing 737-400 Series. Effective Apr 8, 2019
- [AD 2019-01-06](https://openairdocs.org/ad/2019-01-06): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Mar 19, 2019
- [AD 2018-23-12](https://openairdocs.org/ad/2018-23-12): Equipment/furnishings · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 180 more. Effective Dec 28, 2018
- [AD 2018-21-08](https://openairdocs.org/ad/2018-21-08): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Nov 20, 2018
- [AD 2018-19-20](https://openairdocs.org/ad/2018-19-20): Fuselage · Boeing 737-200 Series, 737-300 Series, 737-400 Series and 1 more. Effective Oct 31, 2018
- [AD 2018-18-13](https://openairdocs.org/ad/2018-18-13): Wings · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Oct 18, 2018
- [AD 2018-18-03](https://openairdocs.org/ad/2018-18-03): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Oct 15, 2018
- [AD 2018-17-23](https://openairdocs.org/ad/2018-17-23): Fueslage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Oct 4, 2018
- [AD 2018-16-09](https://openairdocs.org/ad/2018-16-09): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Sep 10, 2018
- [AD 2018-12-05](https://openairdocs.org/ad/2018-12-05): Wings · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jul 13, 2018

### Historical (superseded or no longer in force)

- [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 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 2019-03-06](https://openairdocs.org/ad/2019-03-06) (historical): Equipment/furnishings · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Mar 29, 2019
- [AD 2017-25-12](https://openairdocs.org/ad/2017-25-12) (historical): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jan 22, 2018
- [AD 2017-23-02](https://openairdocs.org/ad/2017-23-02) (historical): Fuselage · Boeing 737-200 Series, 737-200C Series, 737-300 Series and 2 more. Effective Dec 20, 2017
- [AD 2016-13-10](https://openairdocs.org/ad/2016-13-10) (historical): Fuselage · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Aug 9, 2016
- [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 2014-03-06](https://openairdocs.org/ad/2014-03-06) (historical): Wings · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Apr 9, 2014
- [AD 2014-05-02](https://openairdocs.org/ad/2014-05-02) (historical): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Apr 8, 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 2013-18-08](https://openairdocs.org/ad/2013-18-08) (historical): JASC Code 53, Fuselage · Boeing 737-200 Series, 737-200C Series, 737-300 Series and 2 more. Effective Nov 6, 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 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 2012-18-13](https://openairdocs.org/ad/2012-18-13) (historical): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Oct 24, 2012
- [AD 2012-12-05](https://openairdocs.org/ad/2012-12-05) (historical): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jul 23, 2012
- [AD 2012-12-04](https://openairdocs.org/ad/2012-12-04) (historical): Fuselage · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Jul 23, 2012
- [AD 2011-23-05](https://openairdocs.org/ad/2011-23-05) (historical): Fuselage · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Nov 16, 2011
- [AD 2011-08-51](https://openairdocs.org/ad/2011-08-51) (historical): Fuselage · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Jun 2, 2011
- [AD 2010-25-06](https://openairdocs.org/ad/2010-25-06) (historical): Fuselage · Boeing 737-200 Series, 737-300 Series, 737-400 Series and 1 more. Effective Feb 1, 2011
- [AD 2010-15-08](https://openairdocs.org/ad/2010-15-08) (historical): Wings · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Aug 31, 2010
- [AD 2010-01-09](https://openairdocs.org/ad/2010-01-09) (historical): Fuselage · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Feb 16, 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 2009-23-10](https://openairdocs.org/ad/2009-23-10) (historical): Wings · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Nov 24, 2009
- [AD 2009-21-01](https://openairdocs.org/ad/2009-21-01) (historical): Fuselage · Boeing 737-300 Series and 737-400 Series. Effective Nov 17, 2009
- [AD 2009-02-06 R1](https://openairdocs.org/ad/2009-02-06-R1) (historical): Fuselage · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Sep 23, 2009
- [AD 2009-16-14](https://openairdocs.org/ad/2009-16-14) (historical): Forward entry door · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Sep 9, 2009
- [AD 2009-02-06](https://openairdocs.org/ad/2009-02-06) (historical): Fuselage frame and frame reinforcement · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Apr 15, 2009
- [AD 2008-13-12 R1](https://openairdocs.org/ad/2008-13-12-R1) (historical): Upper frame to side frame splice of the fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Dec 1, 2008
- [AD 2008-21-03](https://openairdocs.org/ad/2008-21-03) (historical): Nacelle strut · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Nov 13, 2008
- [AD 2008-19-03](https://openairdocs.org/ad/2008-19-03) (historical): Fuselage skin · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Oct 16, 2008
- [AD 2008-17-03](https://openairdocs.org/ad/2008-17-03) (historical): Body station frame · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Sep 23, 2008
- [AD 2008-13-12](https://openairdocs.org/ad/2008-13-12) (historical): Upper frame to side frame splice of the fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Aug 12, 2008
- [AD 2008-15-05](https://openairdocs.org/ad/2008-15-05) (historical): Carriage spindles · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Aug 5, 2008
- [AD 2008-11-04](https://openairdocs.org/ad/2008-11-04) (historical): Upper and lower hinge cutouts · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jun 25, 2008
- [AD 2008-10-09](https://openairdocs.org/ad/2008-10-09) (historical): FAA-approved maintenance program · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jun 12, 2008
- [AD 2008-06-24](https://openairdocs.org/ad/2008-06-24) (historical): Oxygen masks · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Apr 23, 2008
- [AD 2008-06-29](https://openairdocs.org/ad/2008-06-29) (historical): Slat track housing · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Apr 8, 2008
- [AD 2008-05-06](https://openairdocs.org/ad/2008-05-06) (historical): Longitudinal floor beam web · Boeing 737-100 Series, 737-200 Series, 737-300 Series and 2 more. Effective Apr 8, 2008
- [AD 2007-26-04](https://openairdocs.org/ad/2007-26-04) (historical): Forward fastener row · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jan 22, 2008
- [AD 2007-11-07](https://openairdocs.org/ad/2007-11-07) (historical): Fuel boost pump · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Jun 6, 2007
- [AD 2006-07-12](https://openairdocs.org/ad/2006-07-12) (historical): Fuselage skin at certain lap joints · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective May 5, 2006
- [AD 2005-20-03](https://openairdocs.org/ad/2005-20-03) (historical): Intercostal webs, attachment clips, and stringer splice channels · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 2 more. Effective Nov 1, 2005
- [AD 2005-20-01](https://openairdocs.org/ad/2005-20-01) (historical): Stiffeners at left buttock line (LBL) and right buttock line (RBL) · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Nov 1, 2005
- [AD 2005-13-27](https://openairdocs.org/ad/2005-13-27) (historical): Fuselage skin · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Aug 1, 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 2005-07-12](https://openairdocs.org/ad/2005-07-12) (historical): Doorstop intercostal strap · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective May 12, 2005
- [AD 2004-22-05](https://openairdocs.org/ad/2004-22-05) (historical): Dorsal fin assembly · Boeing 737-300 Series, 737-400 Series and 737-500 Series. Effective Nov 12, 2004
- [AD 2004-18-06](https://openairdocs.org/ad/2004-18-06) (historical): Upper and lower skin panels of the fuselage · Boeing 737-200 Series, 737-200C Series, 737-300 Series and 2 more. Effective Oct 13, 2004
- [AD 2004-03-34](https://openairdocs.org/ad/2004-03-34) (historical): Door mounted escape slides · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 3 more. Effective Mar 24, 2004

All 486: https://openairdocs.org/aircraft/N640CS/ads.md

## Information bulletins (advisory) (16 in force)

- [SAIB 2026-01](https://openairdocs.org/saib/2026-01): PITOT/STATIC ANTI-ICE SYSTEM. Issued Jan 8, 2026
- [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-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-17-06](https://openairdocs.org/saib/NM-17-06): Fuselage: Chem-Mill Skin Panels. Issued Jan 4, 2017
- [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-07-36](https://openairdocs.org/saib/NM-07-36): Grounding plate and bonding jumper to improve electrical bonds between pitot probes and airplane structure. Issued Jun 8, 2007
- [SAIB NM-07-12](https://openairdocs.org/saib/NM-07-12): Wire bundle W138 and add protection sleeves to the wire bundles for the equipment cooling blowers. Issued Nov 27, 2006
- [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

## NTSB investigations

None matched to N640CS.

## FAA accident and incident reports

None matched to N640CS.

## Service difficulty reports (5)

As reported by operators and repair stations.

- [SDR 2019FA0000422](https://openairdocs.org/sdr/2019FA0000422), Dec 27, 2019: FRAME. CRACKED. FRAME BS 500E CRACKED AT STAND-OFF HOLE BELOW STRINGER 21R. REPAIRED IAW EA 43-2019-114.
- [SDR 2019FA0000421](https://openairdocs.org/sdr/2019FA0000421), Dec 27, 2019: WEB. CRACKED. R1 DOOR SILL WEB CRACKED. REPAIRED IAW BOEING SRM 51-40-02 & 51-40-05.
- [SDR 2019FA0000420](https://openairdocs.org/sdr/2019FA0000420), Dec 27, 2019: FRAME. CRACKED. FRAME CRACKED AT FS 500E STR 20L - 21L AT LIGHTNING HOLE REPAIRED IAW B737-400 SRM 53-00-07 REPAIR 13. CAT B REPAIR; INSPECTION THRESHOLD 24,000 FLIGHT CYCLES A
- [SDR 2019FA0000419](https://openairdocs.org/sdr/2019FA0000419), Dec 27, 2019: FRAME. CRACKED. FRAME CRACKED AT FS 500G STR 20L - 21L AT LIGHTNING HOLE FORWARD SIDE REPAIRED IAW SRM 53-00-07 REPAIR 13. CAT B REPAIR.
- [SDR 2014FA0000098](https://openairdocs.org/sdr/2014FA0000098), Feb 24, 2014: ENGINE. VIBRATION. DURING DESCENT AND TAXI, NR 1 ENGINE HAD VIBRATION AT 40 PERCENT N1.

## Related

- Other Boeing 737-400 aircraft: https://openairdocs.org/model/boeing-737-400/aircraft.md
- STCs for the Boeing 737-400: https://openairdocs.org/model/boeing-737-400/stcs.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.