# N425MA: 1986 Fairchild SA227-AC

- Status: Valid registration
- Airframe: [Fairchild SA227-AC](https://openairdocs.org/model/fairchild-sa227-ac) (registry code 3377509, 12 seats)
- Engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01514)
- Data sheets: [TCDS A8SW](https://openairdocs.org/tcds/A8SW) (Ontic Engineering and Manufacturing Inc.) (OpenAirDocs)
- Serial number: AC-640
- Year built: 1986
- Type: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: March 13, 1986
- Certificate issued: July 7, 2009
- Expires: October 31, 2027
- Mode S code: A50F46
- Registered owner: [Cbg LLC](https://openairdocs.org/faa-owner/CBG%20LLC)
- Location: [Wilsonville, OR](https://openairdocs.org/faa-place/OR/Wilsonville)
- Owner type: LLC
- Owner's area on the map: 45.3082° N, 122.7710° W: Placed by OpenAirDocs at the center of ZIP code 97070, 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=425MA
- Page: https://openairdocs.org/aircraft/N425MA

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every AiResearch TPE331 model are included.

## ADs that may apply (OpenAirDocs): 92 in force

### Matched by airframe (Fairchild SA227-AC)

- [AD 2017-07-01](https://openairdocs.org/ad/2017-07-01): Propellers/Propulsors · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 7 more. Effective May 5, 2017
- [AD 2016-25-12](https://openairdocs.org/ad/2016-25-12): Horizontal Stabilizer Structure · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 7 more. Effective Jan 12, 2017
- [AD 2016-15-02](https://openairdocs.org/ad/2016-15-02): Flight Controls · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 9 more. Effective Aug 26, 2016
- [AD 2016-10-01](https://openairdocs.org/ad/2016-10-01): Elevator Control System · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 7 more. Effective Jun 15, 2016
- [AD 2015-19-10](https://openairdocs.org/ad/2015-19-10): Flight Controls · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 9 more. Effective Nov 3, 2015
- [AD 2014-15-01](https://openairdocs.org/ad/2014-15-01): Fuselage Main, Structure · M7 Aerospace SA227-AC (C-26A), SA227-AT, SA227-BC (C-26A) and 2 more. Effective Aug 27, 2014
- [AD 2014-09-02](https://openairdocs.org/ad/2014-09-02): Flight Controls · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 9 more. Effective Jun 5, 2014
- [AD 2014-06-01](https://openairdocs.org/ad/2014-06-01): Fuselage Main, Bulkhead · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 9 more. Effective Apr 25, 2014
- [AD 2012-18-01](https://openairdocs.org/ad/2012-18-01): Wing, Fuselage Attach Fitting · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 7 more. Effective Sep 21, 2012
- [AD 2011-02-04](https://openairdocs.org/ad/2011-02-04): Flight Compartment Windows · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 9 more. Effective Jan 24, 2011
- [AD 2009-11-06](https://openairdocs.org/ad/2009-11-06): Hydraulic tube assemblies · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 5 more. Effective Jul 2, 2009
- [AD 2007-16-03](https://openairdocs.org/ad/2007-16-03): Pitch trim actuators · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 8 more. Effective Sep 7, 2007
- [AD 2005-18-20](https://openairdocs.org/ad/2005-18-20): "FASTprop" propeller de-icers · Hartzell PHC-C3YF-1RF/F8468A(B,K)-8R constant speed propeller (STC SA00718LA or 17 others). Effective Oct 14, 2005
- [AD 2005-06-13](https://openairdocs.org/ad/2005-06-13): Wing spar center web cutout · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective May 2, 2005
- [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19): Mode S transponders · GARMIN International GTX 330D, GTX 330, GTX 33D and 830 more. Effective Feb 23, 2005
- [AD 2003-19-10](https://openairdocs.org/ad/2003-19-10): Fuel boost pump · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 8 more. Effective Nov 7, 2003
- [AD 2002-08-02](https://openairdocs.org/ad/2002-08-02): Brake Shuttle Valves · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Jun 6, 2002
- [AD 2002-08-01](https://openairdocs.org/ad/2002-08-01): Brake Master Cylinders · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Jun 6, 2002
- [AD 2002-01-16](https://openairdocs.org/ad/2002-01-16): Dual Engine Flameout · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 5 more. Effective Mar 11, 2002
- [AD 2000-17-01](https://openairdocs.org/ad/2000-17-01): Brake System · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Oct 6, 2000
- [AD 2000-17-11](https://openairdocs.org/ad/2000-17-11): Main Landing Gear (MLG) Assemblies · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Sep 22, 2000
- [AD 2000-06-04](https://openairdocs.org/ad/2000-06-04): Pneumatic Deicing Boots · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 8 more. Effective May 5, 2000
- [AD 98-08-20](https://openairdocs.org/ad/98-08-20): Autopilot Servo Actuators · Alliedsignal Avionics Autopilot Servo Actuators, Mystere-Falcon 20 - C5, Mystere-Falcon 20 - D5 and 17 more. Effective Jun 2, 1998
- [AD 98-06-25](https://openairdocs.org/ad/98-06-25): Cargo Door Lower Belt Frames · M7 Aerospace SA226-AT, SA226-TC, SA227-AC (C-26A) and 1 more. Effective Apr 27, 1998
- [AD 97-11-13](https://openairdocs.org/ad/97-11-13): Generator Fault Transformer Wiring · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Jul 11, 1997
- [AD 97-10-13](https://openairdocs.org/ad/97-10-13): Elevator Torque Tube Arm · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 5 more. Effective Jul 8, 1997
- [AD 97-01-12](https://openairdocs.org/ad/97-01-12): Ground Proximity Warning System · Airtell International Ground Proximity Warning System, Mystere-Falcon 200, EMB-110P1 and 20 more. Effective Feb 25, 1997
- [AD 96-20-08](https://openairdocs.org/ad/96-20-08): Replace Side Cockpit Window · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Nov 14, 1996
- [AD 96-19-05](https://openairdocs.org/ad/96-19-05): Main Landing Gear or Nose Landing Gear Assemblies or Yokes · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Oct 1, 1996
- [AD 96-09-16](https://openairdocs.org/ad/96-09-16): Airplane Flight Manual (AFM) - Icing · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Jun 11, 1996
- [AD 95-17-09 R1](https://openairdocs.org/ad/95-17-09-R1): Essential Bus Current Limiters · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective May 13, 1996
- [AD 94-07-10 R1](https://openairdocs.org/ad/94-07-10-R1): Upper Wing Skin Inspection · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Mar 25, 1996
- [AD 96-03-03](https://openairdocs.org/ad/96-03-03): Power Control Cable Safety Wire Nuts · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Mar 15, 1996
- [AD 95-24-11](https://openairdocs.org/ad/95-24-11): Foreign Object Damage Barriers In Floorboards · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Jan 3, 1996
- [AD 95-01-07](https://openairdocs.org/ad/95-01-07): Lower Wing Skin Panels · M7 Aerospace SA227-AC (C-26A) and SA227-AT. Effective Feb 17, 1995
- [AD 93-15-01](https://openairdocs.org/ad/93-15-01): Horizontal Stabilizer Pivot Fitting Fasteners · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 5 more. Effective Sep 16, 1993
- [AD 93-09-05](https://openairdocs.org/ad/93-09-05): Elevator Return Spring · M7 Aerospace SA226-AT, SA226-TC, SA227-AC (C-26A) and 1 more. Effective Jun 18, 1993
- [AD 93-07-12](https://openairdocs.org/ad/93-07-12): Horizontal Stabilizer Rear Spar Inspection · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective May 28, 1993
- [AD 93-08-09](https://openairdocs.org/ad/93-08-09): Airplane Flight Manual (AFM) Change - Nose Wheel · M7 Aerospace SA227-AC (C-26A), SA227-AT, SA227-BC (C-26A) and 2 more. Effective May 14, 1993
- [AD 92-19-08](https://openairdocs.org/ad/92-19-08): Rudder Pedal Link Attachment · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Oct 16, 1992
- [AD 92-18-07](https://openairdocs.org/ad/92-18-07): Power Lever Detent Arms · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 5 more. Effective Oct 2, 1992
- [AD 90-14-01](https://openairdocs.org/ad/90-14-01): Passenger Seat · M7 Aerospace SA226-AT, SA226-TC, SA227-AC (C-26A) and 1 more. Effective Feb 11, 1991
- [AD 90-24-03](https://openairdocs.org/ad/90-24-03): Rudder Trim Link Assemblies · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 10 more. Effective Jan 25, 1991
- [AD 85-22-06 R1](https://openairdocs.org/ad/85-22-06-R1): Stall Avoidance System (SAS) · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Oct 19, 1990
- [AD 90-03-19 R1](https://openairdocs.org/ad/90-03-19-R1): Electrical System · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Aug 15, 1990
- [AD 90-05-06 R1](https://openairdocs.org/ad/90-05-06-R1): Main Landing Gear Doors · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Aug 13, 1990
- [AD 87-02-02](https://openairdocs.org/ad/87-02-02): Primary Control Cables · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Jan 27, 1987
- [AD 86-10-08](https://openairdocs.org/ad/86-10-08): Elevator Gust Lock System · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective May 28, 1986
- [AD 84-13-01](https://openairdocs.org/ad/84-13-01): Generator Control J-Box · M7 Aerospace SA226-TC, SA227-AC (C-26A), SA227-AT and 1 more. Effective Jul 5, 1984
- [AD 83-15-09](https://openairdocs.org/ad/83-15-09): Nose Wheel Steering System Modification · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Sep 8, 1983

### Matched by engine (AiResearch TPE331 series)

- [AD 2018-22-01](https://openairdocs.org/ad/2018-22-01): Turbine Section · Honeywell International TPE331-10, TPE331-10N, TPE331-10R and 8 more. Effective Dec 10, 2018
- [AD 2018-17-15](https://openairdocs.org/ad/2018-17-15): Turbine Engine Combustion Section · Honeywell International TPE331-1, TPE331-10, TPE331-10AV and 39 more. Effective Oct 22, 2018
- [AD 2018-13-05](https://openairdocs.org/ad/2018-13-05): Turbine Engine Reduction Gear · Honeywell International TPE331-1, TPE331-10, TPE331-10AV and 18 more. Effective Jul 26, 2018
- [AD 2016-21-07](https://openairdocs.org/ad/2016-21-07): Fuel control drive · Honeywell International TPE331-1, TPE331-10, TPE331-10AV and 26 more. Effective Nov 28, 2016
- [AD 2016-18-17](https://openairdocs.org/ad/2016-18-17): Compressor impeller · Honeywell International TPE331-10, TPE331-10AV, TPE331-10GP and 22 more. Effective Nov 4, 2016
- [AD 2015-18-03](https://openairdocs.org/ad/2015-18-03): Engine propeller shaft coupling failures · Honeywell International TPE331-10, TPE331-10R, TPE331-10U and 8 more. Effective Nov 13, 2015
- [AD 2012-02-06](https://openairdocs.org/ad/2012-02-06): First stage turbine disks · Honeywell International TPE331-10, TPE331-10AV, TPE331-10GP and 12 more. Effective Mar 15, 2012
- [AD 2011-18-51 R1](https://openairdocs.org/ad/2011-18-51-R1): Main shaft bearing · Honeywell International TPE331-1, TPE331-10, TPE331-10A and 82 more. Effective Oct 19, 2011
- [AD 2009-17-05](https://openairdocs.org/ad/2009-17-05): First stage turbine disks · Honeywell International TPE331-10, TPE331-10A, TPE331-10AV and 20 more. Effective Sep 1, 2009
- [AD 2006-14-03](https://openairdocs.org/ad/2006-14-03): New flight cycle counting method for first, second, and third-stage turbine rotors · Honeywell International TPE331-1, TPE331-10, TPE331-10A and 48 more. Effective Aug 9, 2006
- [AD 2004-09-29](https://openairdocs.org/ad/2004-09-29): First Stage Turbine Disks · Honeywell International TPE331-10, TPE331-10A, TPE331-10AV and 20 more. Effective Jun 15, 2004
- [AD 2002-25-02](https://openairdocs.org/ad/2002-25-02): First stage compressors implellers · Honeywell International TPE331-10, TPE331-10A, TPE331-10AV and 35 more. Effective Jan 21, 2003
- [AD 2002-21-15](https://openairdocs.org/ad/2002-21-15): Second stage turbine stator inner seal support · Honeywell International TPE331-1, TPE331-2, TPE331-2UA and 9 more. Effective Nov 26, 2002
- [AD 2002-12-09](https://openairdocs.org/ad/2002-12-09): Spectrometric Oil Analysis Program (SOAP) Sampling of Oil and Filter, Gearbox Components · Honeywell International TPE331-11U, TPE331-12B, TPE331-12JR and 3 more. Effective Jul 3, 2002
- [AD 2001-21-02](https://openairdocs.org/ad/2001-21-02): Airplane Flight Manual--Electronic Engine Controls · Honeywell International TPE331-10N, TPE331-12B and TPE331-8. Effective Nov 19, 2001
- [AD 98-12-09](https://openairdocs.org/ad/98-12-09): Fuel Manifold · Honeywell International TPE331-10, TPE331-10A, TPE331-10AV and 29 more. Effective Aug 7, 1998
- [AD 98-04-15](https://openairdocs.org/ad/98-04-15): Turbine Stators · Honeywell International TPE331-1, TPE331-2, TPE331-2UA and 9 more. Effective Apr 27, 1998
- [AD 97-15-10](https://openairdocs.org/ad/97-15-10): Engine Inlet Ice Protection · Honeywell International TPE331-10, TPE331-10A, TPE331-10AV and 39 more. Effective Sep 22, 1997
- [AD 95-16-08](https://openairdocs.org/ad/95-16-08): Life Limited Turbine Components · Honeywell International TPE331-1, TPE331-10, TPE331-10A and 62 more. Effective Sep 5, 1995
- [AD 94-26-07](https://openairdocs.org/ad/94-26-07): Fuel Control Governor Drive · Honeywell International TPE331-10, TPE331-10A, TPE331-10B and 32 more. Effective Apr 18, 1995
- [AD 94-09-08](https://openairdocs.org/ad/94-09-08): Third Stage Stator Turbine Assemblies · Honeywell International TPE331-1, TPE331-2, TPE331-2UA and 7 more. Effective May 20, 1994
- [AD 93-15-11](https://openairdocs.org/ad/93-15-11): Propeller Pitch Control (PPC) Gasket · Honeywell International TPE331-1, TPE331-10, TPE331-10A and 58 more. Effective Sep 7, 1993
- [AD 92-26-08](https://openairdocs.org/ad/92-26-08): Third Stage Stator Assemblies · Honeywell International TPE331-1, TPE331-2, TPE331-2UA and 7 more. Effective Jul 15, 1993
- [AD 93-05-09](https://openairdocs.org/ad/93-05-09): Third Stage Turbine Stator Assemblies · Honeywell International TPE331-1, TPE331-2, TPE331-2UA and 9 more. Effective Jun 28, 1993
- [AD 93-02-01](https://openairdocs.org/ad/93-02-01): Stratoflex Fuel Manifold Assemblies · Honeywell International TPE331-10, TPE331-10A, TPE331-10B and 21 more. Effective Mar 18, 1993
- [AD 89-07-07 R1](https://openairdocs.org/ad/89-07-07-R1): Oil Scavenge Pump Assembly · Honeywell International TPE331-1, TPE331-10, TPE331-10R and 26 more. Effective Oct 30, 1989
- [AD 86-08-06 R1](https://openairdocs.org/ad/86-08-06-R1): Second Stage Turbine Rotor Assembly · Honeywell International TPE331-25AA, TPE331-25AB, TPE331-25DA and 7 more. Effective Dec 21, 1987
- [AD 84-10-06 R1](https://openairdocs.org/ad/84-10-06-R1): Fuel Pump Assemblies · Honeywell International TPE331-1, TPE331-10, TPE331-10B and 45 more. Effective Dec 26, 1984
- [AD 84-01-04](https://openairdocs.org/ad/84-01-04): Third Stage Turbine Wheels · Honeywell International TPE331-1, TPE331-1U, TPE331-1UA and 11 more. Effective Jan 25, 1984
- [AD 73-26-07 R3](https://openairdocs.org/ad/73-26-07-R3): Fuel Pump Shaft Internal Drive Splines · Honeywell International TPE331-1, TPE331-1U, TPE331-1UA and 39 more. Effective Jul 31, 1980
- [AD 78-25-08 R3](https://openairdocs.org/ad/78-25-08-R3): Turbine Rotor · Honeywell International TPE331-1, TPE331-1U, TPE331-1UA and 11 more. Effective Jun 12, 1980
- [AD 79-12-04](https://openairdocs.org/ad/79-12-04): Forged Third Stage Turbine Wheel Blade · Honeywell International TPE331-10. Effective May 10, 1979
- [AD 78-05-02](https://openairdocs.org/ad/78-05-02): Propeller Pitch Control Cam Follower Pin · Honeywell International TPE331-1, TPE331-1U, TPE331-1UA and 11 more. Effective Apr 5, 1979
- [AD 76-16-01](https://openairdocs.org/ad/76-16-01): Bearing Oil Transfer Tube · Honeywell International TPE331-1, TPE331-1U, TPE331-1UA and 11 more. Effective Aug 6, 1976
- [AD 75-10-05](https://openairdocs.org/ad/75-10-05): Torque Sensor Assembly Mounting Arm · Honeywell International TPE331-1, TPE331-2, TPE331-3U and 3 more. Effective Jul 11, 1975
- [AD 74-10-10](https://openairdocs.org/ad/74-10-10): Fuel Control Assembly Support Bracket · Honeywell International TPE331-1, TPE331-2, TPE331-3U and 2 more. Effective Jul 11, 1975
- [AD 74-24-05](https://openairdocs.org/ad/74-24-05): Propeller Pitch Control Sleeve Assembly · Honeywell International TPE331-3U, TPE331-3UW, TPE331-5 and 1 more. Effective Nov 26, 1974
- [AD 70-19-02](https://openairdocs.org/ad/70-19-02): High Speed Pinion Bearings · Honeywell International TPE331-1, TPE331-1U, TPE331-1UA and 3 more. Effective Feb 20, 1974
- [AD 71-05-07](https://openairdocs.org/ad/71-05-07): High Speed Pinion Assembly · Honeywell International TPE331-1, TPE331-1U, TPE331-1UA and 30 more. Effective Apr 8, 1972
- [AD 70-16-09](https://openairdocs.org/ad/70-16-09): High Speed Pinion Assembly · Honeywell International TPE331-3W
- [AD 70-04-04](https://openairdocs.org/ad/70-04-04): High Speed Pinion Retaining Nut · Honeywell International TPE331-1, TPE331-1U, TPE331-1UA and 3 more

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

- [AD 2008-12-16](https://openairdocs.org/ad/2008-12-16) (historical): Left-hand (LH) and right-hand (RH) inboard wing leading edge/battery box areas · M7 Aerospace LP SA226-AT, SA226-T, SA226-TC and 4 more. Effective Jul 23, 2008
- [AD 2001-20-14](https://openairdocs.org/ad/2001-20-14) (historical): Brake Shuttle Valves · M7 Aerospace LP SA226-AT, SA226-T, SA226-TC and 4 more. Effective Nov 21, 2001
- [AD 2000-03-17](https://openairdocs.org/ad/2000-03-17) (historical): Pitch Trim Actuator · M7 Aerospace LP SA226-AT, SA226-T, SA226-TC and 8 more. Effective Apr 10, 2000
- [AD 98-19-15 R1](https://openairdocs.org/ad/98-19-15-R1) (historical): Pitch Trim Actuator · M7 Aerospace LP SA226-AT, SA226-T, SA226-TC and 7 more. Effective Mar 3, 2000
- [AD 99-06-02](https://openairdocs.org/ad/99-06-02) (historical): Wing Spar Center Web · M7 Aerospace LP SA226-AT, SA226-T, SA226-TC and 7 more. Effective Apr 16, 1999
- [AD 98-19-15](https://openairdocs.org/ad/98-19-15) (historical): Pitch Trim Actuator · M7 Aerospace LP SA226-AT, SA226-T, SA226-TC and 7 more. Effective Sep 25, 1998
- [AD 97-23-01](https://openairdocs.org/ad/97-23-01) (historical): Pitch Trim Actuator · M7 Aerospace LP SA226-AT, SA226-T, SA226-TC and 8 more. Effective Dec 1, 1997
- [AD 97-02-02](https://openairdocs.org/ad/97-02-02) (historical): Control Column Pitch Bearing Attaching Nuts · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 9 more. Effective Feb 6, 1997
- [AD 93-15-02 R2](https://openairdocs.org/ad/93-15-02-R2) (historical): Pitch Trim Actuator · M7 Aerospace LP SA226-AT, SA226-T, SA226-TC and 8 more. Effective Jul 25, 1996
- [AD 94-07-10](https://openairdocs.org/ad/94-07-10) (historical): Upper Wing Skin Inspection · M7 Aerospace LP SA226-AT, SA226-T, SA226-TC and 7 more. Effective May 27, 1994
- [AD 92-01-02](https://openairdocs.org/ad/92-01-02) (historical): Parking Brake System · M7 Aerospace LP SA226-AT, SA226-T, SA226-TC and 4 more. Effective Jan 16, 1992
- [AD 86-25-04](https://openairdocs.org/ad/86-25-04) (historical): POH/AFM Appendix - Icing · M7 Aerospace LP SA227-AC (C-26A), SA227-AT, SA227-BC (C-26A) and 4 more. Effective Dec 15, 1986
- [AD 2018-02-14](https://openairdocs.org/ad/2018-02-14) (historical): Turbine Engine Combustion Section · Honeywell International TPE331-1, TPE331-10, TPE331-10AV and 38 more. Effective Feb 28, 2018
- [AD 2015-12-04](https://openairdocs.org/ad/2015-12-04) (historical): Fuel control unit (FCU) · Honeywell International TPE331-1, TPE331-10, TPE331-10AV and 26 more. Effective Jul 22, 2015
- [AD 2011-18-51](https://openairdocs.org/ad/2011-18-51) (historical): Main shaft bearing · Honeywell International TPE331-1, TPE331-10, TPE331-10A and 82 more
- [AD 2006-15-08](https://openairdocs.org/ad/2006-15-08) (historical): Woodward fuel control unit (FCU) assemblies · Honeywell International TPE331-1, TPE331-10, TPE331-10AV and 26 more. Effective Aug 24, 2006
- [AD 88-12-10](https://openairdocs.org/ad/88-12-10) (historical): Turbine Rotor · Honeywell International TPE331-10, TPE331-10R, TPE331-10U and 6 more. Effective Jun 6, 1988
- [AD 92-02-19 PL](https://openairdocs.org/ad/92-02-19-PL) (historical): Fuel Manifold Assembly Leak · Honeywell International TPE331-10, TPE331-10A, TPE331-10AV and 29 more
- [AD 91-04-02](https://openairdocs.org/ad/91-04-02) (historical): Third stage stator assembly · Honeywell International TPE331-1, TPE331-2, TPE331-2UA and 7 more
- [AD 90-21-01](https://openairdocs.org/ad/90-21-01) (historical): Third stage stator assembly · Honeywell International TPE331-1, TPE331-2, TPE331-2UA and 7 more

All 112: https://openairdocs.org/aircraft/N425MA/ads.md

## Information bulletins (advisory) (18 in force)

- [SAIB 2026-15](https://openairdocs.org/saib/2026-15): Forward Pressure Bulkhead. Issued Sep 9, 2026
- [SAIB 2026-14](https://openairdocs.org/saib/2026-14): Rudder Control System, Brake. Issued Aug 25, 2026
- [SAIB CE-20-09](https://openairdocs.org/saib/CE-20-09): Nacelle/Pylon, Frame/Spar/Rib. Issued May 13, 2020
- [SAIB CE-18-11](https://openairdocs.org/saib/CE-18-11): Flight Controls, Elevator Control System. Issued Feb 9, 2018
- [SAIB CE-17-04](https://openairdocs.org/saib/CE-17-04): Landing Gear, Main Landing Gear. Issued Dec 16, 2016
- [SAIB CE-16-06](https://openairdocs.org/saib/CE-16-06): Flight Controls, Rudder Control System. Issued Nov 20, 2015
- [SAIB CE-16-04](https://openairdocs.org/saib/CE-16-04): Engine Controls, Power Lever. Issued Nov 2, 2015
- [SAIB CE-15-09](https://openairdocs.org/saib/CE-15-09): Windows; Flight Compartment Windows. Issued Feb 24, 2015
- [SAIB CE-15-05R1](https://openairdocs.org/saib/CE-15-05R1): Flight Controls, Aileron Control System. Issued Nov 26, 2014
- [SAIB CE-13-42](https://openairdocs.org/saib/CE-13-42): Wings, Ailerons. Issued Aug 1, 2013
- [SAIB CE-13-41](https://openairdocs.org/saib/CE-13-41): Landing Gear, Landing Gear Actuator. Issued Jul 23, 2013
- [SAIB CE-13-10](https://openairdocs.org/saib/CE-13-10): Windshield/Door Rain/Ice Removal. Issued Dec 21, 2012
- [SAIB CE-12-08](https://openairdocs.org/saib/CE-12-08): Flight Controls, Elevator Control System. Issued Nov 8, 2011
- [SAIB CE-11-26](https://openairdocs.org/saib/CE-11-26): Wings: Wing Skin. Issued Mar 30, 2011
- [SAIB NE-16-19](https://openairdocs.org/saib/NE-16-19): Turbine Engine Compressor Section  Stator Nozzle Distress. Issued Jul 22, 2016
- [SAIB NE-16-18](https://openairdocs.org/saib/NE-16-18): Power Lever  Loss of Power Control. Issued Jul 11, 2016
- [SAIB NE-06-70](https://openairdocs.org/saib/NE-06-70): . Issued Sep 25, 2006
- [SAIB NE-06-69](https://openairdocs.org/saib/NE-06-69): . Issued Sep 20, 2006
- [SAIB CE-15-05](https://openairdocs.org/saib/CE-15-05) (historical): Flight Controls, Aileron Control System. Issued Nov 25, 2014

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DCA26LA151](https://openairdocs.org/ntsb/DCA26LA151), Mar 7, 2026: Fairchild SA227-AC (N425MA), Denver, CO, substantial damage, investigation ongoing

## NTSB investigations on N425MA not matched to an aircraft (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB OPS07IA001](https://openairdocs.org/ntsb/OPS07IA001), Jan 5, 2007: Swearingen SW-4 (N425MA), Denver, CO, incident, no damage. Probable cause: The probable cause of the incident was the Key Lime Air flight 4216 pilot's inadvertant entry onto the active runway. A contributing factor to the incident was the failure of the Denver tower ground…

## FAA accident and incident reports (5)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20190319001649I](https://openairdocs.org/incident/20190319001649I), Mar 19, 2019: Fairchild SA227-AC (N425MA), Garden City, KS, Minor damage. N425MA, a SA-227 metroliner, operated by key lime air corporation, on a 14 CFR 135 on demand cargo flight, was landing on runway 17 at the Garden City…
- [Incident 20000726035539I](https://openairdocs.org/incident/20000726035539I), Jul 26, 2000: Swrngn SA227AC (N425MA), Billings, MT. (-23)Big sky airlines, inc. flt. Number 2577, a fairchild SA-227-AC experienced low hyfraulic pressure warning. The right and left warning lights illuminated.…
- [Incident 19990401017929I](https://openairdocs.org/incident/19990401017929I), Apr 1, 1999: Swrngn SA227AC (N425MA), Billings, MT, Minor damage. At the time of landing, the runway had only been partially plowed. Snow berms were present fifty (50) feet from either side of the runway centerline for the…
- [Incident 19980209003659I](https://openairdocs.org/incident/19980209003659I), Feb 9, 1998: Swrngn SA227AC (N425MA), Billings, MT. Narrative: during cruise flight engine oil pump failed. Pilot shut engine down. Aircraft continued flight and landed without further incident.
- [Incident 19931118050509I](https://openairdocs.org/incident/19931118050509I), Nov 18, 1993: Swrngn SA227AC (N425MA), Minneapolis, MN. Pilot lost control of aircraft on rollout. Veered off runway. Appears nosewheel steering unit failed.

## Service difficulty reports (64, 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 KY7A2026031106001](https://openairdocs.org/sdr/KY7A2026031106001), Mar 6, 2026: DRAG LINK. FRACTURED. AIRCRAFT DEPARTED KLBF FOR KDEN. PILOT REPORTED LT MLG FAILED TO INDICATE UP AFTER TAKEOFF. PILOT CYCLED GEAR SEVERAL TIMES, LT MAIN NEVER RETRACTED, SHOWED IN 
- [SDR KY7A2025091600038](https://openairdocs.org/sdr/KY7A2025091600038), Sep 15, 2025: STICK PUSHER. MALFUNCTIONED. STICK PUSHER MOMENTARILY ENGAGED ON FINAL AT ABOUT 1,200 FT. AGL. FLAPS WERE FULL AND LANDING GEAR DOWN ON 09/15/2025 08:06PM
- [SDR KY7A202508250038](https://openairdocs.org/sdr/KY7A202508250038), Aug 21, 2025: CONTROL UNIT. NOT REPORTED. REPLACED RH GENERATOR CONTROL UNIT C0303 P# 51509-002B SN 15239A
- [SDR KY7A202506182038](https://openairdocs.org/sdr/KY7A202506182038), Jun 16, 2025: GAUGE. INTERMITTENT. L & R HYDRO PRESS ANNUNCIATORS AS WELL AS ZERO ON HYDRO PRESSURE GAUGE INTERMITTENT.
- [SDR KY7A2025032800038](https://openairdocs.org/sdr/KY7A2025032800038), Mar 26, 2025: HOSE. FAILED. L & R HYDRO FAILURE IN FLIGHT. R & R E2 HYDRAULIC PUMP PRESSURE RIGID LINE W/FLEXIBLE HOSE IAW SA227 MM CH 29.00.00 & SA227 SB 227-71-005, NO LEAKS NOTED. FERRY
- [SDR KY7A2025031100038](https://openairdocs.org/sdr/KY7A2025031100038), Mar 8, 2025: WINDOW. DAMAGED. RAPID DECOMPRESSION AT FL210, WOULD NOT PRESSURIZE AFTER FLIGHT. REPLACED 7TH WINDOW RH FUSELAGE WITH NEW WINDOW IAW SA227 MM SL 56-20-20.
- [SDR KY7A2024010600038](https://openairdocs.org/sdr/KY7A2024010600038), Jan 3, 2025: HYDRAULIC LINE. LEAKING. HYDRAULIC FAILURE / LH MLG LEAKING. TIGHTENED HYDR LINES ON POWER. TIGHTENED HYDRAULIC LINES, TIGHTENED BOLTS ON FLAP SERVO. COMPLETED GROUND RUN, LEAK CHECK GO
- [SDR KY7A2023012230038](https://openairdocs.org/sdr/KY7A2023012230038), Dec 20, 2024: HYDRAULIC LINE. NOT REPORTED. R & R E2 HYDRAULIC PUMP RIGID LINE: IAW SA277 CH 29-00-00. PERFORMED ENGINE RUNS, NO LEAKS NOTED.
- [SDR KY7A2023012400038](https://openairdocs.org/sdr/KY7A2023012400038), May 6, 2024: MIXING VALVE. MALFUNCTIONED. SMOKE IN COCKPIT. REMOVED & REPLACED LH MODULATING VALVE & MIXING VALVE IAW SA227 MM 21-40-10 GROUND OPS GOOD.
- [SDR KY7A202504220038](https://openairdocs.org/sdr/KY7A202504220038), Apr 18, 2024: ENGINE. UNKNOWN. AIRCRAFT INTAKE ICING INGESTION DURING TAXI IN. WAITING ON MECHANIC'S FINDINGS, WHICH WILL BE REPORTED AT A LATER DATE.
- [SDR KY7A20250116038](https://openairdocs.org/sdr/KY7A20250116038), Jan 13, 2024: LINE. FAILED. L & R HYD FAILURE. R & R LH LANDING GEAR LINE IAW SA227 MM CH 29-00-00 GEAR SWINGS SATISFACTORY IAW SA227 MM CH 32-30-00
- [SDR KY7A2019041805001](https://openairdocs.org/sdr/KY7A2019041805001), Apr 18, 2019: ACCUMULATOR. CRACKED. PILOT REPORTED HYDRAULIC LEAK LH WHEEL WELL AND LOST ALL HYDRAULIC PRESSURE. MX FOUND HYDRAULIC ACCUMULATOR CRACKED. MX REMOVED AND REPLACED HYDAULIC ACCUMULATO
- [SDR KY7A20160516001](https://openairdocs.org/sdr/KY7A20160516001), May 16, 2016: UNKNOWN. LEAKING. PILOT REPORTED HOT RT NONESSENTIAL BUS CB PANEL & BURNING SMELL. ACFT LANDED AT DESTINATION WITHOUT INCIDENT. FOUND THAT THE RT NONESSENTIAL BUS CB OVERLAY LIGH
- [SDR 2001F00709](https://openairdocs.org/sdr/2001F00709), Oct 29, 2001: B-NUT. LOOSE. FLT 6003 - SEA - CREW OBSERVED THAT THE LEFT OIL PRESS LOW CAME ON PRESSURE DROPPING TO ZERO DURING DESCENT INTO SEA. THE LEFT ENGINE TORQUE ALSO STARTED TO DRO
- [SDR 20000810SH012](https://openairdocs.org/sdr/20000810SH012), Jul 26, 2000: LINE. CRACKED. BIL - FLT 2577 - LEFT AND RIGHT HYDRAULIC WARNING LIGHTS CAME ON IN CRUISE FLIGHT. CREW DECLARED EMERGENCY AS REQUIRED BY EMERGENCY CHECKLIST PROCEDURES. HYDRAU
- [SDR 20000614SH008](https://openairdocs.org/sdr/20000614SH008), Mar 18, 2000: DUCT. BROKEN. BIL - FLT 2561 - CREW NOTICED STRONG ODOR OF PLASTIC WHEN LEFT BLEED AIR WAS TURNED ON. LEFT CABIN HEAT DUCT HOSE TORN AT END. (TWICE AS LONG AS IT NEEDED TO BE
- [SDR 20000427SH006](https://openairdocs.org/sdr/20000427SH006), Mar 18, 2000: DUCT. BROKEN. BIL - FLT 2561 - CREW NOTICED STRONG ODOR OF PLASTIC WHEN LEFT BLEED AIR WAS TURNED ON. LEFT CABIN HEAT DUCT HOSE TORN AT END. REPAIRED BROKEN HEAT DUCT HOSE BY
- [SDR MALA975338](https://openairdocs.org/sdr/MALA975338), Feb 27, 1997: ACM. FAILED. FLT 3017 - EN ROUTE TO DTW, LEFT BLEED AIR FILLED THE AIRCRAFT WITH SMOKE. CREW VERIFIED LEFT ACM CAUSING SMOKE, TURNED ACM OFF. CREW DECLARED AND EMERGENCY AND
- [SDR MALA975314](https://openairdocs.org/sdr/MALA975314), Feb 4, 1997: ACTUATOR. INTERNAL FAULT. FLT 2911 - ON APPROACH TO CMI, CREW SELECTED GEAR DOWN AND DID NOT GET A NOSE WHEEL GREEN INDICATION. CREW CYCLED GEAR NUMEROUS TIMES, THEN PERFORMED EMERGENCY 
- [SDR MALA975303](https://openairdocs.org/sdr/MALA975303), Jan 24, 1997: SWITCH. FAILED. FLT 3264 - ON APPROACH TO MSP, CREW REPORTED RIGHT MAIN GEAR GREEN LIGHT SLOW TO ILLUMINATE ON GEAR RETRACTION. MAINTENANCE REMOVED AND REPLACED BOTH INBOARD AN
- [SDR MALA975289](https://openairdocs.org/sdr/MALA975289), Jan 16, 1997: RETRACT MECH. LACK OF LUBE. FLT 3455 - ON APPROACH TO DTW HAD TO CYCLE GEAR FOUR TIMES TO GET GREEN DOWN AND LOCKED INDICATION. MAINTENANCE CLEANED AND GREASED ALL LUBRICATION POINTS. REPL
- [SDR MALA975282](https://openairdocs.org/sdr/MALA975282), Jan 13, 1997: DOWNLOCK SWITCH. DIRTY. FLT 3277 - ON APPROACH TO FS, NOSE GEAR DOWN AND LOCK INDICATION INOP. GEAR CYCLED FOUR TIMES FOR PROPER INDICATINO. AIRCRAFT FERRIED TO MSP. MAINTENANCE COMPLE
- [SDR MALA965268](https://openairdocs.org/sdr/MALA965268), Dec 28, 1996: POSITION SWITCH. DIRTY. FLT 2999 - ON APPROACH TO MSP, THE CREW HAD TO CYCLE THE GEAR TWO TIMES BEFORE THE RIGHT GEAR DOWN/LOCKED LIGHT WAS RECEIVED. MAINTENANCE WAS UNABLE TO DUPLICAT
- [SDR MALA965232](https://openairdocs.org/sdr/MALA965232), Dec 5, 1996: RIB. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND A .5 INCH CRACK ON THE RIGHT FLAP OUTBOARD NOSE RIB. (M)
- [SDR MALA965231](https://openairdocs.org/sdr/MALA965231), Dec 4, 1996: SWITCH. FAILED. FLT 3016 - ON APPROACH TO CWA, THE NOSE GEAR UNSAFE LIGHT REMAINED ILLUMINATED AFTER GEAR EXTENSION AND NO DOWN AND LOCKED LIGHT WAS RECEIVED. THE CREW CYCLED T
- [SDR MALA965196](https://openairdocs.org/sdr/MALA965196), Nov 12, 1996: SWITCH. DIRTY. FLIGHT 3085 - ON APPROACH TO MSP, THE RIGHT GEAR INTRANSIT LIGHT AS SLOW TO EXTINGUISH AFTER GEAR EXTENSION. MAINTENANCE CLEANED AND LUBED THE RIGHT INTRANSIT L
- [SDR MALA965195](https://openairdocs.org/sdr/MALA965195), Nov 11, 1996: SWITCH. DIRTY. FLT 3355 - ON APPROACH TO DTW, THE RIGHT MAIN GEAR DIDN'T INDICATED DOWN AND LOCKED AFTER GEAR EXTENSION. THE CREW CYCLED THE GEAR UNTIL A DOWN INDICATION WAS R
- [SDR MALA965109](https://openairdocs.org/sdr/MALA965109), Sep 4, 1996: HANDLE. WORN. FLT 3095 - ON TAXI, CREW REPORTED THE CARGO DOOR WARNING LIGHT ILLUMINATED. MAINTENANCE FOUND THE CARGO DOOR EXTERNAL HANDLE WORN AND THE HANDLE RETURN SPRING W
- [SDR 96ZZZM1380](https://openairdocs.org/sdr/96ZZZM1380), Sep 4, 1996: SPRING. WORN. FLT 3095 - ON TAXI, CREW REPORTED THE CARGO DOOR WARNING LIGHT ILLUMINATED. MAINTENANCE FOUND THE CARGO DOOR EXTERNAL HANDLE WORN AND THE HANDLE RETURN SPRING W
- [SDR MALA965061](https://openairdocs.org/sdr/MALA965061), Jul 3, 1996: INTRANSIT LIGHT. ILLUMINATED. FLT NR 3376 - ON APPROACH TO ERI, THE RIGHT GEAR INTRANSIT LIGHT REMAINED ILLUMINATED, AND THE DOWN AND LOCKED LIGHT REMAINED EXTINGUISHED. THE CREW CYCLED THE 
- [SDR MALA965041](https://openairdocs.org/sdr/MALA965041), Jun 12, 1996: MOUNT. CRACKED. DURING A SCHEDULED INSPECTION AT MSP, MAINTENANCE FOUND A GAS STRUT MOUNT POST HOLE TO BE CRACKED. PERFORMED REPAIR TO CARGO DOOR FRAME AT FS 491.00 BY REMOVING
- [SDR MALA965040](https://openairdocs.org/sdr/MALA965040), Jun 12, 1996: FRAME. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERFORMED REPAIR TO CRACK ON THE RIGHT LOWER BELT FRAME AT FS 212.271. STOP DRILLED CRACK, FABRICATED, PREPPED
- [SDR MALA965037](https://openairdocs.org/sdr/MALA965037), Jun 12, 1996: FRAME. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND AN INTERCOSTAL CRACK. PERFORMED REPAIR TO RT LOWER BELT FRAME AT FS 377-271. STOP DRILLED CRACK, FABRICA
- [SDR MALA965033](https://openairdocs.org/sdr/MALA965033), Jun 12, 1996: SKIN. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE RIGHT VERTICAL STABILIZER SKIN CRACKED AFT OF THE CUT OUT FOR THE HORIZONTAL STABILIZER SPAR. PERFOR
- [SDR MALA965032](https://openairdocs.org/sdr/MALA965032), Jun 12, 1996: NUT PLATE. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, MX FOUND FLIGHT OFFICERS INBOARD SEAT TRACK CENTER NUT PLATE CRACKED OUT TO RIVET. COMPLETED REPAIR BY FABRICATING AND INS
- [SDR MALA965031](https://openairdocs.org/sdr/MALA965031), Jun 12, 1996: SKIN. CHAFED. DURNG A SCHEDULED INSPECTION IN MSP, MX FOUND THE INBOARD MOST TRAILING EDGE ON THE RIGHT FLAP TO HAVE CHAFE DAMAGE. COMPLETED REPAIR TO RT FLAP P/N 27-36000-04
- [SDR MALA965030](https://openairdocs.org/sdr/MALA965030), Jun 12, 1996: ANGLE. WORN. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE RIGHT NACELLE INBOARD LOWER WING SKIN TO NACELLE ATTACH ANGLE REPAIR DOUBLER WORN. REMOVED EXISTING 
- [SDR MALA963034](https://openairdocs.org/sdr/MALA963034), Jun 12, 1996: DOUBLER. WORN. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE RIGHT FLAP ROLLER DOUBLER WORN. COMPLETED REPAIR BY REMOVING WORN ROLLER DOUBLER AND INSTALLING NEW 
- [SDR 96ZZZM1124](https://openairdocs.org/sdr/96ZZZM1124), Jun 12, 1996: PLATE. WORN. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE RIGHT FLAP ROLLER DOUBLER WORN. COMPLETED REPAIR BY REMOVING WORN ROLLER DOUBLER AND INSTALLING NEW 
- [SDR MALA964990](https://openairdocs.org/sdr/MALA964990), May 12, 1996: COMP SEAL. LEAKING. FLT NR 3134 - AFTER TAKEOFF FROM MSP, THE CREW NOTED SMOKE IN THE COCKPIT AND CABIN. THE SMOKE DISSIPATED AFTER THE CREW TURNED OFF THE BLEED AIR SYSTEMS. THE A
- [SDR MALA964978](https://openairdocs.org/sdr/MALA964978), May 1, 1996: RADAR R/T UNIT. FAILED. DTW - FLT 3354 - IN CRUISE FLIGHT, WEATHER RADAR SIGNAL BECAME WEAK AND INTERMITTENT. THE RADAR ALSO TILTED 10-15 DEGREES DOWN AT VARIOUS RANGES. THE AIRCRAFT R
- [SDR MALA964954](https://openairdocs.org/sdr/MALA964954), Apr 15, 1996: CONNECTORS. FAILED. MSP - FLT 3495 - ON CLIMB-OUT, LEFT ENGINE FIRE INDICATORS ILLUMINATED. ALL OTHER ENGINE INDICATIONS WERE NORMAL. THE AIRCRAFT RETURNED TO MSP WITHOUT INCIDENT.
- [SDR MALA964949](https://openairdocs.org/sdr/MALA964949), Apr 12, 1996: FIRE DETECTOR. MALFUNCTIONED. FLT NR 3302 - DURING THE TAKEOFF ROLL IN MSP, THE LEFT ENGINE FIRE LIGHT ILLUMINATED. THE TAKEOFF ATTEMPT WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAI
- [SDR MALA964900](https://openairdocs.org/sdr/MALA964900), Mar 7, 1996: ACTUATOR. DIRTY. FLT NR 3346 - ON APPROACH TO CWA, THE RIGHT GEAR INTRANSIT LIGHT REMAINED ILLUMINATED. THE CREW CYCLED THE GEAR AND THE PROBLEM PERSISTED. THE CREW PERFORMED AN
- [SDR MALA964868](https://openairdocs.org/sdr/MALA964868), Feb 12, 1996: WARNING HORN. SOUNDED. FLT NR 3460 - DURING APPROACH TO DTW, THE GEAR WARNING HORN SOUNDED WHEN FLAPS WERE SELECTED TO FULL. AFTER EXECUTING A GO-AROUND, THE AIRCRAFT LANDED WITHOUT I
- [SDR MALA964848](https://openairdocs.org/sdr/MALA964848), Jan 30, 1996: BRAKEY. WORN. FLT 3045 - WHILE TAXIING IN DTW, CREW NOTED THE CAPTAIN'S BRAKES WERE SOFT AND NEEDED TO BE PUMPED IN ORDER TO OBTAIN BRAKE PRESSURE. MAINTENANCE REPLACED THE R
- [SDR MALA954591](https://openairdocs.org/sdr/MALA954591), Aug 18, 1995: BATTERY. FAILED. FLT NR 3245 - IN CRUISE FLIGHT TO MSP, THE LEFT BATTERY HOT LIGHT ILLUMINATED. THE CREW DISCONNECTED THE BATTERY AND CONTINUED TO MSP. MAINTENANCE REPLACED THE 
- [SDR MALA954528](https://openairdocs.org/sdr/MALA954528), Jun 28, 1995: CONNECTOR. FAILED. YNG - FLT 3360 - IN CRUSIE, THE LT TEMP WARNING LIGHT ILLUMINATED. THE CREW DISCONNECTED THE LT BATTERY AND THE TEMPERATURE CONTINUED TO INDICATE A HIGH TEMPERA
- [SDR MALA954524](https://openairdocs.org/sdr/MALA954524), Jun 28, 1995: CONNECTOR. FAILED. YNG - FLT 3360 - IN CRUISE, THE LT BATTERY TEMP WARNING LIGHT ILLUMINATED. THE CREW DISCONNECTED THE LT BATTERY AND THE TEMPERATURE CONTINUED TO INDICATE A HIGH
- [SDR MALA954523](https://openairdocs.org/sdr/MALA954523), Jun 28, 1995: BATTERY. MALFUNCTIONED. LEX - FLT 3376 - EN ROUTE, THE LT BATTERY TEMP WARNING LIGHT ILLUMINATED. THE CREW DISCONNECTED THE LT BATTERY AND THE TEMPERATURE RETURNED TO NORMAL. THE AC RE

All 64: https://openairdocs.org/aircraft/N425MA/reports.md

## STCs that may be installed (OpenAirDocs) (130, 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 (Fairchild SA227-AC)

- [STC SA01800SE](https://openairdocs.org/stc/SA01800SE): Fabrication and installation of new or replacement of existing instrument panel lights dimmer control. TCW Technologies, LLC
- [STC SA01861SE](https://openairdocs.org/stc/SA01861SE): Fabrication and installation of Landing Light Controller. TCW Technologies, LLC
- [STC SA04837NY](https://openairdocs.org/stc/SA04837NY): Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights. AeroLED's Holdings, LLC
- [STC SA02019SE-D](https://openairdocs.org/stc/SA02019SE-D): Installation of Garmin Model GTN 625/635/650; 725/750 Navigation System. Garmin International Inc
- [STC SA11300DS](https://openairdocs.org/stc/SA11300DS): Upgrade previously installed Collins Aerospace Radar Altimeter. BHE & Associates Ltd
- [STC SA8006NM](https://openairdocs.org/stc/SA8006NM): Installation of interior fluorescent cabin lighting system. Bruce Aerospace Inc
- [STC SA8773SW](https://openairdocs.org/stc/SA8773SW): Installation of a TCAS-791 Traffic Alert and Collision Avoidance System (TCAS I). Acron Aviation Inc
- [STC SA09768DS](https://openairdocs.org/stc/SA09768DS): Installation of S-TEC 01236 Digital Flight Control System (DFCS). S-Tec Corporation
- [STC SA04627CH](https://openairdocs.org/stc/SA04627CH): Installation of Luma Technologies LT-4048 Series LED Display Panel. Luma Technologies LLC
- [STC SA04051CH](https://openairdocs.org/stc/SA04051CH): Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D Transponders. CMD Flight Solutions LLC
- [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc
- [STC ST00789WI](https://openairdocs.org/stc/ST00789WI): Installation of the Fairchild Digital Data Flight Recorder Model F800 or F1000. Worldwide Aircraft Services LLC
- [STC SA09111AC](https://openairdocs.org/stc/SA09111AC): Installation of Concorde RG390ES sealed lead-acid battiers. Ontic Engineering and Manufacturing Inc
- [STC SA10352SC](https://openairdocs.org/stc/SA10352SC): Installation of an Aviation Communication & Surveillance Systems (ACSS) TCAS II, dual ACSS Mode-S transponders and dual Sextant VSI/TCAS display. Ontic Engineering and Manufacturing Inc
- [STC SA5901NM](https://openairdocs.org/stc/SA5901NM): Mk VI ground proximity warning system installed. Honeywell International Inc
- [STC SA04514NY](https://openairdocs.org/stc/SA04514NY): Single/Dual Transponder System ADS-B Upgrade. Scandinavian Avionics Design ApS
- [STC SA2062CE-D](https://openairdocs.org/stc/SA2062CE-D): Installation of King KNS-660 multi-sensor flight management system. Honeywell International Inc
- [STC SA2060CE-D](https://openairdocs.org/stc/SA2060CE-D): Installation of King KFC-400 automatic flight control system. Honeywell International Inc
- [STC SA2064CE-D](https://openairdocs.org/stc/SA2064CE-D): Installation of Bendix 3 tube or 5 tube EFS-10 electronic flight instrument system. Honeywell International Inc
- [STC SA02677LA](https://openairdocs.org/stc/SA02677LA): Modification to upgrade the existing Mode S Transponder system by installing the ACSS NXT-700 Transponder with ADS-B Out and optionally install the ACSS NXG-900 GPS as the position source for ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC SA02678LA](https://openairdocs.org/stc/SA02678LA): Modification to upgrade the existing Mode S Transponder system by installing the ACSS NXT-600 Transponder with ADS-B Out and optionally install the ACSS NXG-900 GPS as the position source for ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC SA01714WI](https://openairdocs.org/stc/SA01714WI): Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R with ADS-B Out functionality in select airplanes installed with G950/G1000 systems. Garmin International Inc
- [STC SA04405CH](https://openairdocs.org/stc/SA04405CH): Installation of a dual Garmin G700TXi Display System in accordance with Toledo Jet Center Master Data List, Document No. TJC-G700.001-MDL, Revision IR, dated May 6, 2019, or later FAA approved revision. Toledo Jet Center LLC
- [STC SA00163MC](https://openairdocs.org/stc/SA00163MC): Installation of Airborne Systems Training and Research (ASTARS III) systems. Naval Air Systems Command PMA-207
- [STC SA04273NY](https://openairdocs.org/stc/SA04273NY): Installation of the Garmin G950 Integrated Flight Deck System upgrade. Midland Instruments Ltd
- [STC SA02796CH](https://openairdocs.org/stc/SA02796CH): Install Air Ambulance conversion. Paul/ Lanna Egan LLC
- [STC SA02890AT](https://openairdocs.org/stc/SA02890AT): Installation of a Honeywell Model CAS 67A Traffic Alert and Collision Avoidance System II (TCAS II) with Single Mode-S Transponder. Toledo Jet Center, LLC
- [STC SA04165NY](https://openairdocs.org/stc/SA04165NY): Installation of Latitude Technologies Skynode S200 Satcom system must be performed. Latitude Technologies Corporation
- [STC SA02153LA-D PAGE 2](https://openairdocs.org/stc/SA02153LA-D%20PAGE%202): Installation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) System. Garmin International Inc
- [STC SA02013CH](https://openairdocs.org/stc/SA02013CH): Installation of Avidyne Corporation Traffic Advisory System (TAS). Avidyne Corporation
- [STC SA01933LA-D](https://openairdocs.org/stc/SA01933LA-D): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin International Inc
- [STC SA8919SW](https://openairdocs.org/stc/SA8919SW): Conversion of aircraft from passenger configuration to cargo only configuration. Worldwide Aviation Engineering LLC
- [STC SA03973NY](https://openairdocs.org/stc/SA03973NY): Replacement of existing TCAS 7.0 by TCAS 7.1. Scandinavian Avionics Design ApS
- [STC ST00276WI](https://openairdocs.org/stc/ST00276WI): Installation of Kedeg Company 21BC11e Coaleser Assemly. Purolator Facet, Inc
- [STC SA00343BO](https://openairdocs.org/stc/SA00343BO): Installation of a single configuration or a dual configuration Avidyne Corporation Integrated Flight Display, Model IFD540 loaded with Release 10.0 software (or later FAA approved release). Avidyne Corporation
- [STC SA00352BO PAGE 1](https://openairdocs.org/stc/SA00352BO%20PAGE%201): Installation of an Avidyne Corporation Mode A/C/S Transponder with ADS-B Out capability, Model AXP340 loaded with Version 3.13 software (or later FAA approved version),. Avidyne Corporation
- [STC SA02444LA](https://openairdocs.org/stc/SA02444LA): Interior Arrangement. Ameriflight LLC
- [STC SA1542GL](https://openairdocs.org/stc/SA1542GL): Install Aero Medical Products Mfg., Inc. Air Ambulance Stretcher P/N 126 using Installation Kit P/N 805. Paul/ Lanna Egan LLC
- [STC SA00780SE](https://openairdocs.org/stc/SA00780SE): Installation of the True Lock Safety Retention Axle Lock Nut System. True Lock LLC
- [STC SA01969SE](https://openairdocs.org/stc/SA01969SE): Installation of a Mid-Continent MD302 Standby Attitude Module. Mid-Continent Instruments and Avionics
- [STC SA01229SE PAGE 1](https://openairdocs.org/stc/SA01229SE%20PAGE%201): Installation of GNS 480 (CNX80) GPS WAAS Navigator with integrated VHF Navigation and Communication radios. Garmin International Inc
- [STC SA01933LA-D PAGE 1](https://openairdocs.org/stc/SA01933LA-D%20PAGE%201): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin International Inc
- [STC SA04182AT](https://openairdocs.org/stc/SA04182AT): Installation of Pilot and Copilot Main Windshield. PPG Aerospace
- [STC SA02121SE](https://openairdocs.org/stc/SA02121SE): Installation of Garmin GTS 825 (TAS) or GTS 855 (TCAS I) Traffic System. Garmin International Inc
- [STC SA00269BO](https://openairdocs.org/stc/SA00269BO): Installation of Avidyne Corporation TWX 670 Tactical Weather Detection System P/N 850-00026-000-( ) consisting of Avidyne Processor P/N 700-00033-000-( ), Sensor Systems Inc. Antenna P/N S72-1715-1 with doubler plate P/N S72-171530-1, and Avidyne Mounting Tray P/N 700-00034-000. Avidyne Corporation
- [STC SA03893AT](https://openairdocs.org/stc/SA03893AT): Installation of MT-Propeller Model MTV-27-1-E-C-F-R(G)/CFRL250-103. MT-Propeller USA Inc
- [STC SA02149AK](https://openairdocs.org/stc/SA02149AK): Installation of GX50/60 GPS Navigator, Capstone configured MX20 Multi-Function Display and UAT transceiver. Garmin International Inc
- [STC SA01692SE](https://openairdocs.org/stc/SA01692SE): Installation of a Garmin GMX 200 Multi-Function Display. Garmin International Inc
- [STC SA03148NY](https://openairdocs.org/stc/SA03148NY): The installation of the Latitude Technologies Corporation S100 Tracking System. Latitude Technologies Corporation
- [STC SA00674WI-D](https://openairdocs.org/stc/SA00674WI-D): Modification of Collins VHF-22A/VHF-22B VHF COMM Receiver Transmitter with CTL-22 Control Pro Line II System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II system installation. Rockwell Collins Inc

All 130: https://openairdocs.org/aircraft/N425MA/stcs.md

## Earlier aircraft with N425MA

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N425MA before.

- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N425MA-undated): Boeing 707-331C, S/N 17689

## Related

- Other Fairchild SA227-AC aircraft: https://openairdocs.org/model/fairchild-sa227-ac/aircraft.md
- The AiResearch TPE331 series engine: https://openairdocs.org/engine/airesearch-tpe331-series.md

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