# N940SW: 1994 Cessna 525 - Status: Valid registration - Airframe: [Cessna 525](https://openairdocs.org/model/cessna-525) (registry code 2076601, 8 seats) - Engine: [Williams FJ-44 series](https://openairdocs.org/engine/williams-fj-44-series) (registry code 66000) - Data sheets: [TCDS A1WI](https://openairdocs.org/tcds/A1WI) (Textron Aviation Inc.), [TCDS E3GL](https://openairdocs.org/tcds/E3GL) (Williams International Company L.L.C.) (OpenAirDocs) - Serial number: 5250071 - Year built: 1994 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, normal - Airworthiness date: August 31, 1994 - Certificate issued: January 15, 2025 - Expires: January 31, 2032 - Mode S code: AD0ECD - Registered owner: [Bh Aero LLC](https://openairdocs.org/faa-owner/BH%20AERO%20LLC) - Location: [Birmingham, AL](https://openairdocs.org/faa-place/AL/Birmingham) - Owner type: LLC - Owner's area on the map: 33.4653° N, 86.8110° W: Placed by OpenAirDocs at the center of ZIP code 35209, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=940SW - Page: https://openairdocs.org/aircraft/N940SW From the FAA registry file of October 20, 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 Williams FJ-44 model are included. ## ADs that may apply (OpenAirDocs): 20 in force ### Matched by airframe (Cessna 525) - [AD 2024-15-09](https://openairdocs.org/ad/2024-15-09): Gust Lock/Damper System · Textron 525, 525A and 525B with STC SA03842NY. Effective Oct 22, 2024 - [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 2020-24-06](https://openairdocs.org/ad/2020-24-06): Flight Controls · Textron 525, 525A and 525B with STC SA03842NY. Effective Dec 28, 2020 - [AD 2014-18-01](https://openairdocs.org/ad/2014-18-01): Navigation · Bombardier ATR42-200, ATR42-300, ATR42-320 and 23 more. Effective Oct 14, 2014 - [AD 2013-08-05](https://openairdocs.org/ad/2013-08-05): Air Conditioning · Cessna 525. Effective May 30, 2013 - [AD 2006-16-18 R1](https://openairdocs.org/ad/2006-16-18-R1): Installing a warning placard on the TAWS/RMI · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 100 more. Effective Jul 18, 2008 - [AD 2008-12-01](https://openairdocs.org/ad/2008-12-01): Firewall sealant · Cessna 525. Effective Jul 16, 2008 - [AD 2008-03-10](https://openairdocs.org/ad/2008-03-10): Lower wing skin structure · Cessna 525, 525A and 525B. Effective Mar 11, 2008 - [AD 2005-17-11](https://openairdocs.org/ad/2005-17-11): Fire extinguisher bottles · Cessna 525, 525A and 525B. Effective Oct 7, 2005 - [AD 2004-14-20](https://openairdocs.org/ad/2004-14-20): Pitch trim circuit breaker and AP servo circuit breaker · Cessna 525. Effective Aug 23, 2004 - [AD 2004-08-15](https://openairdocs.org/ad/2004-08-15): TAWS8000 terrain awareness warning systems (TAWS) · Cessna 421, 500, 501 and 18 more. Effective Jun 7, 2004 - [AD 2002-20-09](https://openairdocs.org/ad/2002-20-09): Adaptive flight display units · Bombardier CL-600-2A12 (CL-601), 525, 525A and 5 more. Effective Nov 12, 2002 - [AD 2001-23-17](https://openairdocs.org/ad/2001-23-17): GNS 430 units · Cessna 172, 182, 206 and 209 more. Effective Dec 28, 2001 - [AD 2001-02-13](https://openairdocs.org/ad/2001-02-13): Power Battery Switches · Cessna 525. Effective Feb 28, 2001 - [AD 97-05-03 R1](https://openairdocs.org/ad/97-05-03-R1): Global Positioning Systems · BAE Systems Avro 146-RJ100A, BAe 146-200A, Jetstream Model 4101 and 27 more. Effective Apr 20, 1999 - [AD 98-25-02](https://openairdocs.org/ad/98-25-02): Top-mounted Antenna · Bell Helicopter Textron Canada 407, 172, 172A and 243 more. Effective Dec 22, 1998 - [AD 97-01-02](https://openairdocs.org/ad/97-01-02): MLG Trunnion Pins · Cessna 525. Effective Jan 15, 1997 ### Matched by engine (Williams FJ-44 series) - [AD 2022-13-15](https://openairdocs.org/ad/2022-13-15): Turbine Section · Williams International FJ44-2A, FJ44-2C, FJ44-3A and 1 more. Effective Aug 9, 2022 - [AD 99-07-04](https://openairdocs.org/ad/99-07-04): High Pressure Turbine (HPT) Disk · Williams International FJ44-1A. Effective May 24, 1999 - [AD 97-01-05](https://openairdocs.org/ad/97-01-05): Disk Posts and Turbine Blades · Williams International FJ44-1A. Effective Jan 21, 1997 ### Historical (superseded or no longer in force) - [AD 2019-08-13](https://openairdocs.org/ad/2019-08-13) (historical): Flight Controls · Textron 525, 525A and 525B with STC SA03842NY. Effective May 24, 2019 - [AD 2003-21-07](https://openairdocs.org/ad/2003-21-07) (historical): Pitch trim circuit breaker · 525. Effective Oct 22, 2003 ## Information bulletins (advisory) (1 in force) - [SAIB CE-10-49R1](https://openairdocs.org/saib/CE-10-49R1): Equipment/Furnishings Drain Mast Heater. Issued Jan 5, 2011 - [SAIB CE-10-49](https://openairdocs.org/saib/CE-10-49) (historical): Equipment/Furnishings Drain Mast Heater. Issued Sep 23, 2010 ## NTSB investigations None matched to N940SW. ## FAA accident and incident reports None matched to N940SW. ## Service difficulty reports (1) As reported by operators and repair stations. - [SDR AIH2008F00000](https://openairdocs.org/sdr/AIH2008F00000), Jan 17, 2008: PUMP. SEIZED. LT HYD PUMP LOW FLOW ANNUNCIATOR ILLUMINATED. MAINT FOUND THE LT HYD PUMP WAS SEIZED. PUMP WAS REPLACED WITH NEW AND PROBLEM WAS SOLVED. (K) ## Related - Other Cessna 525 aircraft: https://openairdocs.org/model/cessna-525/aircraft.md - STCs for the Cessna 525: https://openairdocs.org/model/cessna-525/stcs.md - The Williams FJ-44 series engine: https://openairdocs.org/engine/williams-fj-44-series.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.