# N487AF: 1975 Mitsubishi MU-2B-26

- Status: Valid registration
- Airframe: [Mitsubishi MU-2B-26](https://openairdocs.org/model/mitsubishi-mu-2b-26) (registry code 5780408, 9 seats)
- Engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01514)
- Serial number: 333
- Year built: 1975
- Type: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Standard
- Certificate issued: January 27, 2011
- Expires: January 31, 2027
- Mode S code: A602A0
- Registered owner: [Air 1st Aviation Companies Inc](https://openairdocs.org/faa-owner/AIR%201ST%20AVIATION%20COMPANIES%20INC)
- Location: [Tyndall Afb, FL](https://openairdocs.org/faa-place/FL/Tyndall%20Afb)
- Owner type: Corporation
- Owner's area on the map: 30.0486° N, 85.5532° W: Placed by OpenAirDocs at the center of ZIP code 32403, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=487AF
- Page: https://openairdocs.org/aircraft/N487AF

From the FAA registry file of October 22, 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): 71 in force

### Matched by airframe (Mitsubishi MU-2B-26)

- [AD 2020-26-14](https://openairdocs.org/ad/2020-26-14): Propellers · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Feb 2, 2021
- [AD 2010-10-17](https://openairdocs.org/ad/2010-10-17): Airplane flight manual · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Jul 22, 2010
- [AD 2007-17-09](https://openairdocs.org/ad/2007-17-09): Elevator nose-down trim · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Sep 25, 2007
- [AD 2006-17-05](https://openairdocs.org/ad/2006-17-05): Flight checks of the rigging of the engine and propeller systems · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Sep 22, 2006
- [AD 2006-13-15](https://openairdocs.org/ad/2006-13-15): Wing attach barrel nuts, bolts · Mitsubishi Heavy Industries MU-2B-10, MU-2B-15, MU-2B-20 and 9 more. Effective Aug 11, 2006
- [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 2005-01-19](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 2003-22-07 R1](https://openairdocs.org/ad/2003-22-07-R1): AFM- forecast icing conditions · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Apr 16, 2004
- [AD 2003-17-04](https://openairdocs.org/ad/2003-17-04): Cockpit Windshield and Cabin Window · Mitsubishi Heavy Industries MU-2B-10, MU-2B-15, MU-2B-20 and 9 more. Effective Oct 3, 2003
- [AD 2000-09-15 R1](https://openairdocs.org/ad/2000-09-15-R1): Icing Conditions · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Jul 24, 2000
- [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 98-20-39](https://openairdocs.org/ad/98-20-39): Forward Attachment Fitting Bolt · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Nov 20, 1998
- [AD 96-25-02](https://openairdocs.org/ad/96-25-02): Airplane Flight Manual (AFM) - Icing Limitations · Mitsubishi Heavy Industries MU-2B-10, MU-2B-15, MU-2B-20 and 9 more. Effective Dec 27, 1996
- [AD 88-21-01 R1](https://openairdocs.org/ad/88-21-01-R1): Control Yoke · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Jan 28, 1989
- [AD 88-23-01](https://openairdocs.org/ad/88-23-01): Torque Tube Joints · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Dec 4, 1988
- [AD 88-13-01](https://openairdocs.org/ad/88-13-01): Autopilots · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Jul 11, 1988
- [AD 87-12-02](https://openairdocs.org/ad/87-12-02): Generator Shield Jumper Wires · Mitsubishi Heavy Industries MU-2B-25, MU-2B-26 and MU-2B-35. Effective Jul 3, 1987
- [AD 87-04-03](https://openairdocs.org/ad/87-04-03): Flap Flexible Shafts · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Mar 7, 1987
- [AD 86-26-02](https://openairdocs.org/ad/86-26-02): POH/AFM Appendix - Icing · Mitsubishi Heavy Industries MU-2B-10, MU-2B-15, MU-2B-20 and 9 more. Effective Dec 31, 1986
- [AD 86-20-01](https://openairdocs.org/ad/86-20-01): Pitot System Modification · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Oct 6, 1986
- [AD 86-15-03](https://openairdocs.org/ad/86-15-03): NLG Strut Assembly · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 6 more. Effective Aug 13, 1986
- [AD 84-25-02](https://openairdocs.org/ad/84-25-02): Trim Tab Brackets · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Dec 18, 1984
- [AD 84-12-04](https://openairdocs.org/ad/84-12-04): Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Jun 28, 1984
- [AD 83-09-02](https://openairdocs.org/ad/83-09-02): Strobe Light Assemblies · Mitsubishi Heavy Industries MU-2B-25, MU-2B-26, MU-2B-30 and 2 more. Effective May 17, 1983
- [AD 82-08-02](https://openairdocs.org/ad/82-08-02): Electrical Wiring Inspection · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 6 more. Effective Apr 15, 1982
- [AD 81-25-04 R1](https://openairdocs.org/ad/81-25-04-R1): Electrical Wiring Inspection · Mitsubishi Heavy Industries MU-2B-25, MU-2B-26, MU-2B-26A and 4 more. Effective Jan 21, 1982
- [AD 81-06-01 R1](https://openairdocs.org/ad/81-06-01-R1): Engine Aft Nacelles · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 3 more. Effective Apr 1, 1981
- [AD 79-24-02](https://openairdocs.org/ad/79-24-02): Outer Fuel Tank Wiring · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Nov 21, 1979
- [AD 78-03-05](https://openairdocs.org/ad/78-03-05): Cowling Latches · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 6 more. Effective Feb 23, 1978
- [AD 75-03-06](https://openairdocs.org/ad/75-03-06): Cracks and Optical Distortion · Mitsubishi Heavy Industries MU-2B-26 and MU-2B-36. Effective Nov 13, 1974

### 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 2006-17-01](https://openairdocs.org/ad/2006-17-01) (historical): Airplane Flight Manual (AFM) · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Sep 22, 2006
- [AD 2006-15-07](https://openairdocs.org/ad/2006-15-07) (historical): Airplane Flight Manual (AFM) · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Aug 24, 2006
- [AD 2003-22-07](https://openairdocs.org/ad/2003-22-07) (historical): Airplane Flight Manual (AFM) - icing conditions · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Dec 15, 2003
- [AD 2000-09-15](https://openairdocs.org/ad/2000-09-15) (historical): Icing · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Jul 24, 2000
- [AD 2000-02-25](https://openairdocs.org/ad/2000-02-25) (historical): Airframe Pneumatic Deicing Boots · Mitsubishi Heavy Industries MU-2B-10, MU-2B-15, MU-2B-20 and 9 more. Effective Mar 24, 2000
- [AD 97-25-02](https://openairdocs.org/ad/97-25-02) (historical): Airplane Flight Manual (AFM) - Power Levers · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 9 more. Effective Jan 21, 1998
- [AD 97-20-14](https://openairdocs.org/ad/97-20-14) (historical): Airplane Flight Manual (AFM) - Icing Limitations · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Oct 17, 1997
- [AD 94-04-16](https://openairdocs.org/ad/94-04-16) (historical): Elevator Nose-Down Trim · Mitsubishi Heavy Industries MU-2B-10, MU-2B-15, MU-2B-20 and 5 more. Effective Apr 11, 1994
- [AD 93-07-11](https://openairdocs.org/ad/93-07-11) (historical): Elevator Nose-Down Trim · Mitsubishi Heavy Industries MU-2B-25, MU-2B-26, MU-2B-26A and 5 more. Effective Jun 1, 1993
- [AD 75-16-20](https://openairdocs.org/ad/75-16-20) (historical): Propeller Pitch Control Lever · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 6 more. Effective Aug 12, 1975
- [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

## Information bulletins (advisory) (6 in force)

- [SAIB CE-19-09](https://openairdocs.org/saib/CE-19-09): Wing Miscellaneous Structure. Issued Jun 10, 2019
- [SAIB CE-12-33](https://openairdocs.org/saib/CE-12-33): Landing Gear Retraction/Extension System, Nose Landing Gear. Issued Jun 12, 2012
- [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

## NTSB investigations

None matched to N487AF.

## FAA accident and incident reports

None matched to N487AF.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs) (20)

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 engine (AiResearch TPE331 series)

- [STC SE02538AK](https://openairdocs.org/stc/SE02538AK): Modification of Honeywell TPE331-12JR-702TT engine. TAE Aerospace (CTEC). Lists TPE331-12JR
- [STC SE03035AT](https://openairdocs.org/stc/SE03035AT): Installation of Royal Atlantic Aviation Engine Oil Filter Bypass Warning System, Kit P/N RAA2003-1-1. Reds Aircraft Service Inc. Lists TPE331-10N
- [STC SE00265AT](https://openairdocs.org/stc/SE00265AT): Install Ayres Fuel Manifold Purge Assembly Kit, P/N 21757-1 in accordance with "Installation Instructions - Ayres P/N 21757-1 Fuel Manifold Purge Assy-Kit" Dwg. No. 21757-1(1), Revision none, dated April 20, 1993, or later FAA approved revision. Thrush Aircraft Inc. Lists TPE331-1
- [STC SE2924SO](https://openairdocs.org/stc/SE2924SO): Installation of Garrett TPE-331-10 combustor and turbine in the TPE331-8 engine. National Flight Lakeland. Lists TPE331-8
- [STC SE01461NY](https://openairdocs.org/stc/SE01461NY): Propeller pitch control system modification. Hartzell HC-E4N-5D/D9690(B) propeller installed per STC SA01462NY. Not approved on serial numbers TC-398 through TC-418. Hartzell Propeller Inc. Lists TPE331-10UA
- [STC SE01604CH](https://openairdocs.org/stc/SE01604CH): Convert Honeywell TPE331-10AV-511B to a TPE331-10AV-511KA. National Flight Services, Inc. Lists TPE331-10AV
- [STC SE00229AT](https://openairdocs.org/stc/SE00229AT): Installation of Garrett TPE331-10 Combustor and Turbine in TPE331-6 engine. National Flight Services, Inc. Lists TPE331-6
- [STC SE00275AT](https://openairdocs.org/stc/SE00275AT): Installation of GarrettTPE331-10 combustor and turbine in the TPE331-5 engine. National Flight Services, Inc. Lists TPE331-5
- [STC SE00691CH](https://openairdocs.org/stc/SE00691CH): Modification of a turboprop engine to a turboshaft configuration by incorporation of AlliedSignal (Garrett) TSE331-3U turboshaft gearbox components and other associated changes. National Flight Services, Inc. Lists TPE331-10UA
- [STC SE383CH](https://openairdocs.org/stc/SE383CH): Modification of engines. National Flight Services, Inc. Lists TPE331-1
- [STC SE7547SW](https://openairdocs.org/stc/SE7547SW): Install Garrett P/N 865558-16 or865558-1E propeller pitch control cam. Peacock Joe N. Lists TPE331-25A
- [STC SE8029SW](https://openairdocs.org/stc/SE8029SW): Modify propeller pitch control, P/N 869130, by installing pitch control cam, Garrett P/N869386-1. Agri Jet Power, Inc. Lists TPE331-1
- [STC SE1725CE](https://openairdocs.org/stc/SE1725CE): Modification to replace torque pressure compensator with a plug for raw torque pressure indicating provision. Air Midwest, Inc. Lists TPE331-3UW
- [STC SE33WE](https://openairdocs.org/stc/SE33WE): Modification of: ( 1) Manual fuel valve and beta cams; (2) Fuel control linkage and propeller servo cam; and (3)Automatic control of bleed valve and engine starting functions; S/N P61801 only. Garrett Turbine Engine Company A Division of the Garrett Corporation. Lists TPE331-25D
- [STC SE35WE](https://openairdocs.org/stc/SE35WE): Modification of the fuel control, linkage to permit 75% r.p.m. for low ground idle. Garrett Turbine Engine Company Division of Garret Corporation. Lists TPE331-47
- [STC SE39WE](https://openairdocs.org/stc/SE39WE): Modification of the fuel control linkage to permit 75% r.p.m. for ground idle doe S/N 86001. Garrett Turbine Engine Company A Division of the Garrett Corporation. Lists TPE331-57
- [STC SE50WE](https://openairdocs.org/stc/SE50WE): One engine only. Modification of a Model TPE331-25DAL to. incorporate the engine components associated with a torque and temperature 1imitinq system in accordance with AiResearch Kit PIN 896642-1. An en9ine incorporating this kit is reidentified as a Model TPE331-25DALT . Garrett Turbine Engine Company Division of Garret Corporation. Lists TPE331-25DA
- [STC SE68WE](https://openairdocs.org/stc/SE68WE): Deletion of fireshield installation kit. West-Figueroa Trust. Lists TPE331-6
- [STC SE56WE](https://openairdocs.org/stc/SE56WE): Serial Numbers P-06012 AND P-06024: Installation of heated compressor inlet temperature sensor lines. AiResearch Manufacturing Company. Lists TPE331-5
- [STC SE38WE](https://openairdocs.org/stc/SE38WE): Modification of fuel control linkage to permit operation of 75% idle speed. S/N 61701 & 61702. Garrett Turbine Engine Company Division of Garret Corporation. Lists TPE331-55

## Related

- Other Mitsubishi MU-2B-26 aircraft: https://openairdocs.org/model/mitsubishi-mu-2b-26/aircraft.md
- The AiResearch TPE331 series engine: https://openairdocs.org/engine/airesearch-tpe331-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.