# N422MA: 1986 Fairchild SA227-AC

- Status: Valid registration
- Airframe: [Fairchild SA227-AC](https://openairdocs.org/model/fairchild-sa227-ac) (registry code 3377509, 12 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Data sheets: [TCDS A8SW](https://openairdocs.org/tcds/A8SW) (Ontic Engineering and Manufacturing Inc.) (OpenAirDocs)
- Serial number: AC-635
- Year built: 1986
- Type: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: February 12, 1986
- Certificate issued: April 12, 2007
- Expires: January 31, 2030
- Mode S code: A50421
- Registered owner: [Uas Transervices Inc](https://openairdocs.org/faa-owner/UAS%20TRANSERVICES%20INC)
- Location: [Boca Raton, FL](https://openairdocs.org/faa-place/FL/Boca%20Raton)
- Owner type: Corporation
- Owner's area on the map: 26.3746° N, 80.1066° W: Placed by OpenAirDocs at the center of ZIP code 33431, 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=422MA
- Page: https://openairdocs.org/aircraft/N422MA

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.

## ADs that may apply (OpenAirDocs): 51 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 (Amateur-built UNKNOWN ENG)

None in force.

### 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

All 63: https://openairdocs.org/aircraft/N422MA/ads.md

## Information bulletins (advisory) (14 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 CE-15-05](https://openairdocs.org/saib/CE-15-05) (historical): Flight Controls, Aileron Control System. Issued Nov 25, 2014

## NTSB investigations

None matched to N422MA.

## FAA accident and incident reports (3)

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 20140909023909I](https://openairdocs.org/incident/20140909023909I), Sep 9, 2014: Fairchild SA227-AC (N422MA), Phoenix, AZ, Minor damage. Pilot while taxing to the west cargo area taxied onto a closed taxiway hitting a barrier with the left propellor. Pilot was aware of NOTAM that the taxiway was…
- [Incident 19921118050219I](https://openairdocs.org/incident/19921118050219I), Nov 18, 1992: Swrngn SA227AC (N422MA), Detroit, MI. Smoke in cabin. Noticed burning smell on final. Evacuated on taxiway. Turbine fins scraping housing on left engine.
- [Incident 19880215008629I](https://openairdocs.org/incident/19880215008629I), Feb 15, 1988: Swrngn SA227AC (N422MA), Fort Dodge, IA. Oil pressure light illuminated. Pressure gage read zero. Engine shut donw. Found starter bearing failed. Cut oil line

## Service difficulty reports (49)

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 JIKA2025123001](https://openairdocs.org/sdr/JIKA2025123001), Dec 24, 2025: HYDRAULIC LINE. CHAFED. DURING FLIGHT AFTER SHORTY AFTER LEVEL OFF, THE FLIGHT CREW EXPERIENCE A LOW HYDRAULIC PRESSURE MALFUNCTION AND AIR RETURNED BACK TO BASE. THE EMERGENCY LANDING
- [SDR JIKA2020110901](https://openairdocs.org/sdr/JIKA2020110901), Nov 9, 2020: COOLING TURBINE. BROKEN. JUST PRIOR TO LEVEL OFF AT 13000, STEADY WING OVERHEAT ANNUNCIATOR LIGHT CAME ON AND SMALL AMOUNT OF SMOKE CAME INTO THE CABIN. THE PILOT WENT THROUGH THE MEMOR
- [SDR JIKA201910110901](https://openairdocs.org/sdr/JIKA201910110901), Oct 9, 2019: CIRCUIT BREAKER. BURNED. AMF FLT 1367 - ON DECENT INTO KLAS PILOT NOTICED A BURNING SMELL / ODOR COMING FROM THE RH ESSENTIAL CIRCUIT BREAKER PANEL. CREW CONTINUED WITH SAFEST COURSE OF
- [SDR JIKA201812241901](https://openairdocs.org/sdr/JIKA201812241901), Dec 19, 2018: HEATER. OVERHEATED. DISCREPANCY: THE PILOT DEPARTED KPHX HEADING TO KOLS. DURING THE CLIMB, THE PILOT REPORTED THAT THE RIGHT WING OVERHEAT ANNUNCIATOR ILLUMINATED. THE PILOT REQUE
- [SDR JIKA2018032600001](https://openairdocs.org/sdr/JIKA2018032600001), Mar 20, 2018: SHUTOFF VALVE. FAULTY. THE PILOT REPORTED AFTER TAKEOFF, THE LEFT ENGINE BEGAN BY-PASSING, FUEL PRESSURE AND ENGINE RPM REDUCED. THE PILOT FOLLOWED PROCEDURES AND PERFORMED AND INFLIG
- [SDR JIKA2017122101](https://openairdocs.org/sdr/JIKA2017122101), Dec 21, 2017: COALESCER BAG. DIRTY. THE PILOT WAS EN-ROUTE TO KPHX WHEN HE NOTICED SMOKE DEVELOPING IN THE COCKPIT AND SHORTLY AFTER THAT THE RIGHT WING OVERHEAT ANNUNCIATOR ILLUMINATED STEADY. TH
- [SDR JIKA2017121501](https://openairdocs.org/sdr/JIKA2017121501), Dec 15, 2017: CIRCUIT BREAKER. TRIPPED. THE PILOT WAS ON CLIMB-OUT FROM KPHX WHEN THE ENVIRONMENTAL SYSTEM BEGAN TO BLOW VERY HOT AIR FROM THE VENTS AND THE RIGHT WING OVERHEAT ANNUNCIATOR ILLUMINATED
- [SDR JIKA2017091801](https://openairdocs.org/sdr/JIKA2017091801), Sep 14, 2017: LINE. FAILED. WHILE ENROUTE, THE PILOT REPORTED THAT THE LEFT AND RIGHT HYDRAULIC LOW PRESSURE ANNUNCIATORS ILLUMINATED, FOLLOWED BY A COMPLETE LOSS OF HYDRAULIC PRESSURE. TH
- [SDR JIKA2017012001](https://openairdocs.org/sdr/JIKA2017012001), Jan 20, 2017: COOLING TURBINE. FAILED. WHILE TURNING TO ESTABLISH LOC RECEIVED A RT WING OVERHEAT INDICATION. SHORTLY AFTER THE ANNUNCIATOR ILLUM THERE WAS A SMALL AMOUNT OF SMOKE IN THE COCKPIT. FOL
- [SDR JIKA2016080301](https://openairdocs.org/sdr/JIKA2016080301), Aug 3, 2016: COOLING TURBINE. LEAKING. WHILE ENROUTE, THE PILOT NOTICED THE RT WING OVER HEAT ANNUNCIATOR LIGHT ILLUMINATED. THIS WAS FOLLOWED BY VISIBLE SMOKE OBSERVED IN THE COCKPIT. THE PILOT FOLL
- [SDR JIKA2015100801](https://openairdocs.org/sdr/JIKA2015100801), Oct 8, 2015: UNKNOWN. SMOKE. AFTER TAKEOFF, PILOT NOTICED THE RT WING OVERHEAT LIGHT ILLUMINATED & OBSERVED SMOKE IN THE COCKPIT. PILOT DECLARED AN EMER & RETURNED, LANDED WITHOUT INCIDENT.
- [SDR JIKA2014081101](https://openairdocs.org/sdr/JIKA2014081101), Aug 11, 2014: STRUT. MALFUNCTIONED. AFTER ROTATION PILOT SELECTED LG HANDLE IN THE RETRACT POSITION. LG REMAINED EXTENDED & LOCKED WITH THREE GREEN INDICATOR LIGHTS ILLUMINATED. PILOT SWITCHED THE
- [SDR JIKA2013090601](https://openairdocs.org/sdr/JIKA2013090601), Sep 3, 2013: FLEX HOSE. LEAKING. DURING CRUISE FLIGHT, BOTH HYDRAULICS FAILED ANNUNCIATORS ILLUMINATED. HYD PRESSURE READ 200PSI. PERFORMED AN EMERGENCY GEAR EXTENSION AND A FLAPS UP LANDING WI
- [SDR MALA965201](https://openairdocs.org/sdr/MALA965201), Nov 14, 1996: SWITCHES. DIRTY. FLT 3226 - ON APPROACH TO YQT, THE NOSE GEAR DOOR LIGHT FAILED TO ILLUMINATE FTER GEAR EXTENSION. THE CREW CYCLED THE GEAR UNTIL ALL INDICATIONS WERE NORMAL. MA
- [SDR MALA965251](https://openairdocs.org/sdr/MALA965251), Nov 8, 1996: SWITCH. DIRTY. FLT 3342 - ON APPROACH TO DTW, THE NOSE GEAR DOWN AND LOCKED LIGHT FAILED TO ILLUMINATE AFTER GEAR EXTENSION. THE CREW CYCLED THE GEAR UNTIL THE LIGHT ILLUMINAT
- [SDR MALA965200](https://openairdocs.org/sdr/MALA965200), Nov 3, 1996: SWITCH. DIRTY. FLT 3342 - ON APPROACH TO DTW, THE GREEN DOWN AND LOCKED LIGHT FOR THE NOSE GEAR WASN'T RECEIVED UNTIL THE GEAR WAS CYCLED THREE TIMES. MAINTENANCE CLEANED AND 
- [SDR MALA965171](https://openairdocs.org/sdr/MALA965171), Oct 25, 1996: COMPRESSOR SEAL. FAILED. FLT 3094 - ON CLIMB-OUT FROM MSP, THE CREW NOTED A BAD ODOR FROM THE BLEED AIR SYSTEM AND A HAZE IN THE CABIN. THE AIRCRAFT RETURNED TO MSP. MAINTENANCE REPLACE
- [SDR MALA965107](https://openairdocs.org/sdr/MALA965107), Sep 1, 1996: COOLING TURBINE. FAILED. FLT 3092 - ON CLIMB-OUT FROM DTW, CREW REPORTED SMOKE IN THE CABIN. AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE VERIFIED RIGHT COO
- [SDR MALA965021](https://openairdocs.org/sdr/MALA965021), Jun 7, 1996: PACK. SMOKING. FLT NR 3283 - WHILE TAXIING TO THE GATE IN DTW, SMOKE BEGAN TO COME THROUGH THE BLEED AIR VENTS. THE CREW TURNED OFF THE BLEEDS AND THE SMOKE DISSIPATED. MAINTE
- [SDR MALA965044](https://openairdocs.org/sdr/MALA965044), May 27, 1996: FRAME. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERFORMED REPAIR TO LOWER RIGHT BELT FRAME RELIEF RADIUS AT FS 197.27 AND BL 8. STOP DRILLED CRACK, FABRICATED
- [SDR MALA965043](https://openairdocs.org/sdr/MALA965043), May 27, 1996: FLOOR BOARD. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND A CRACKED OUT RIVET HOLE IN RIGHT CENTER AISLE FLOOR BOARD WEB AT FS 227.221. CRACK LENGTH APPROXIMATELY
- [SDR MALA965042](https://openairdocs.org/sdr/MALA965042), May 27, 1996: FRAME. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, PERFORMED REPAIR TO RIGHT LOWER BELT FRAME AT FS 189.060. STOP DRILLED CRACK, FABRICATED, PREPPED AND INSTALLED REPAIR DOU
- [SDR MALA965039](https://openairdocs.org/sdr/MALA965039), May 27, 1996: DOOR FRAMES. SCUFFED. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE PASSENGER DOOR OPENING ON FUSELAGE FRAME AT FS 133.873 SCUFFED BY PASSENGER DOOR GUIDES. COMPLETED R
- [SDR MALA965038](https://openairdocs.org/sdr/MALA965038), May 27, 1996: DOOR FRAME. SCUFFED. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE PASSENGER DOOR OPENING ON FUSELAGE FRAME AT FS 159.247 SCUFFED BY PASSENGER DOOR GUIDES. COMPLETED R
- [SDR MALA965036](https://openairdocs.org/sdr/MALA965036), May 27, 1996: ANGLE. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND LEFT INBOARD UPPER NACELLE TO WING TRANSIT ANGLE FORWARD EDGE CRACKED. COMPLETED REPAIR BY STOP DRILLING
- [SDR MALA965035](https://openairdocs.org/sdr/MALA965035), May 27, 1996: ANGLE. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, FOUND LEFT INBOARD LOWER NACELLE TO WING TRANSIT ANGLE FORWARD EDGE CRACKED ON PREVIOUS REPAIR. REMOVED PREVIOUS REPAIR, F
- [SDR MALA965025](https://openairdocs.org/sdr/MALA965025), May 27, 1996: STIFFENER. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, MX FOUND CRACKS IN STIFFENER, P/N 27-31110, AT BL 0.0. FREPAIRED IAW FAC SRM 57-90-30 PAGES 3 THROUGH 12, REPAIR NR 1 AND 
- [SDR MALA965024](https://openairdocs.org/sdr/MALA965024), May 27, 1996: SKIN. CRACKED. DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE CARGO DOOR SKIN UPPER TABS CRACKED AT FORWARD AND AFT HINGE RECESS. COMPLETED REPAIRS BY REMOVING DA
- [SDR MALA964870](https://openairdocs.org/sdr/MALA964870), Feb 13, 1996: SWITCH. FAILED. FLT NR 3245 - DURING APPROACH TO MSP, THE RIGHT MAIN GEAR INTRANSIT LIGHT DID NOT ILLUMINATE WHEN THE LANDING GEAR WAS EXTENDED. THE AIRCRAFT CONTINUED TO MSP A
- [SDR MALA964866](https://openairdocs.org/sdr/MALA964866), Feb 10, 1996: COALESCER BAG. DIRTY. FLT NR 3011 - AFTER DEPARTURE FROM DTW, THE CABIN BEGAN TO FILL WITH SMOKE. THE CREW SHUT OFF THE BLEEDS AND RETURNED TO DTW WITHOUT INCIDENT. MAINTENANCE PERSO
- [SDR MALA954742](https://openairdocs.org/sdr/MALA954742), Dec 10, 1995: DOOR FRAME. CRACKED. DURING SCHEDULED MAINTENANCE IN MSP, THE AFT CARGO FUSELAGE DOOR FRAME, FS 491.060 WAS FOUND TO BE CRACKED AT THE DOOR SNUBBER ATTACH POINT. REPAIRS WERE COMPLE
- [SDR MALA954740](https://openairdocs.org/sdr/MALA954740), Dec 8, 1995: AIRSPEED IND. FAILED. DURING A DEADHEAD FLIGHT FROM GRB TO MSP, THE CREW NOTED UNRELIABLE INDICATIONS FROM THE CAPTAINS AND FLIGHT OFFICERS AIRSPEED INDICATORS. DUE TO WEATHER, THE A
- [SDR MALA954721](https://openairdocs.org/sdr/MALA954721), Nov 24, 1995: INTAKE HEAT WIRE. FAILED. FLT NR 3277 - EN ROUTE, THE LEFT ENGINE INTAKE LIGHT AND VALVE CYCLED ON AND OFF. THE AIRCRAFT RETURNED TO MSP DUE TO EN ROUTE WEATHER. MAINTENANCE REPAIRED A B
- [SDR MALA954429](https://openairdocs.org/sdr/MALA954429), Apr 21, 1995: ACTUATOR. FAILED. MSP - FLT 3494 - ON APPROACH, RIGHT MAIN GEAR DOWN AND LOCKED LIGHT FAILED TO ILLUMINATE AFTER GEAR EXTENSION. THE CREW CYCLED THE GEAR UNTIL A DOWN AND LOCKED 
- [SDR 95ZZZX2357](https://openairdocs.org/sdr/95ZZZX2357), Apr 21, 1995: BELLCRANK. FAILED. MSP - FLT 3494 - ON APPROACH, RIGHT MAIN GEAR DOWN AND LOCKED LIGHT FAILED TO ILLUMINATE AFTER GEAR EXTENSION. THE CREW CYCLED THE GEAR UNTIL A DOWN AND LOCKED 
- [SDR MALA954425](https://openairdocs.org/sdr/MALA954425), Apr 18, 1995: TQ TUBE. TWISTED. MSP - DURING BLOCK CHECK, FOUND RUDDER TORQUE TUBE, PN 27-42051-037, TWISTED. REPLACED WITH SERVICEABLE PN 27-42051-0837 IAW FAIRCHILD MM 27-20-20, PAGES 201-20
- [SDR MALA954424](https://openairdocs.org/sdr/MALA954424), Apr 18, 1995: FRAME. CRACKED. MSP - DURING BLOCK INSPECTION FOUND RT LOWER BELT FRAME CRACKED AT RELIEF RADIUS. LOCATION FS 159.24 AND WL 81.00, RIGHT BELOW STR 11A. REPAIRED IAW FAC SRM 53-
- [SDR MALA954423](https://openairdocs.org/sdr/MALA954423), Apr 18, 1995: FRAME. CRACKED. MSP - DURING BLOCK INSPECTION, FOUND LOWER LT BELT FRAME CRACKED AT RELIEF RADIUS. LOCATION: FS 317.21 AND WL 81.07, RIGHT BELOW STR 11. REPAIRED IAW FAC SRM 53
- [SDR MALA954422](https://openairdocs.org/sdr/MALA954422), Apr 18, 1995: DOUBLER. WORN. MSP - DURING BLOCK INSPECTION, FOUND LT FLAP WALKING BEAM ROLLER DOUBLER WORN. REPAIRED WORN DOUBLER WITH NEW. PN 27-31141-001, IAW FAC SRM 57-90-10, NR 11 AND 
- [SDR MALA954421](https://openairdocs.org/sdr/MALA954421), Apr 18, 1995: DOOR SILL. CRACKED. MSP - DURING BLOCK CHECK, FOUND SMALL CRACK APROXIMATELY .250-.300 INCH AT RADIUS OF CUT-OUT FOR FUSELAGE FRAME AT FS 438.0 IN CARGO DOOR SILL. REPAIRED BY STOP
- [SDR MALA954420](https://openairdocs.org/sdr/MALA954420), Apr 18, 1995: FRAME. CRACKED. DURING BLOCK INSPECTION IN MSP, FOUND LOWER LEFT BELT FRAME CRACKED AT RELIEF RADIUS, FS 332.27 AND WL 81.07, RIGHT BELOW STRINGER NR 11. REPAIRED IAW FAC SRM 5
- [SDR MALA954419](https://openairdocs.org/sdr/MALA954419), Apr 18, 1995: FRAME. CRACKED. DURING BLOCK INSPECTION IN MSP, FOUND LOWER LEFT BELT FRAME CRACKED AT RELIEF RADIUS, LOCATION FS 242.27 AND WL 81.07, RIGHT BELOW STRINGER NR 11. REPAIRED IAW 
- [SDR MALA954418](https://openairdocs.org/sdr/MALA954418), Apr 18, 1995: DOOR FRAME. CRACKED. DURING BLOCK INSPECTION IN MSP, MAINTENANCE FOUND AT CARGO DOOR FRAME, FORWARD GAS STRUT MOUNT HOLE CRACKED OUT, FS 438.060. REPAIRED IAW FAIRCHILD ARP 53-20-95
- [SDR MALA954383](https://openairdocs.org/sdr/MALA954383), Mar 21, 1995: POSITION IND. INTERNAL FAULT. FLT 3213 - ON APPROACH TO BJI, THE CREW DID NOT RECEIVE A GREEN DOWN AND LOCKED INDICATION FROM THE RIGHT GEAR. THE CREW PUSHED ON THE INDICATOR HOUSING AND THE
- [SDR MALA954374](https://openairdocs.org/sdr/MALA954374), Mar 13, 1995: ACTUATORS. FAILED. FLT 3306 - IN CRUISE FLIGHT TO MSP, THE NOSE GEAR BEGAN TO CYCLE IN THE WHEEL WELL. THE CREW LOWERED THE GEAR AND CONTINUED TO MSP. MAINTENANCE REPLACED THE LEF
- [SDR MALA954369](https://openairdocs.org/sdr/MALA954369), Mar 11, 1995: SWITCH. OUT OF ADJUST. FLT 3235 - ON CLIMB-OUT FROM YQT, THE NOSE GEAR CONTINUED TO CYCLE AFTER GEAR RETRACTION. THE CREW RECYCLED THE GEAR AND THE GEAR RETRACTED NORMALLY. MAINTENANC
- [SDR MALA954323](https://openairdocs.org/sdr/MALA954323), Feb 16, 1995: SWITCH. OUT OF ADJUST. YNG - FLT 3147 - ON CLIMB-OUT, NOSE GEAR CONTINUED TO CYCLE AFTER GEAR RETRACTION. THE CREW CYCLED THE GEAR AND THE PROBLEM WAS CORRECTED. THE AIRCRAFT CONTINUE
- [SDR MALA954243](https://openairdocs.org/sdr/MALA954243), Jan 15, 1995: RETRACT MECH. SLOW. MSP - FLT 3252 - ON APPROACH, THE RT MAIN GEAR WAS SLOW TO INDICATE DOWN AND LOCKED. THE ACFT LANDED IN MSP WITHOUT INCIDENT. MAINTENANCE WAS UNABLE TO DUPLICAT
- [SDR MALA954228](https://openairdocs.org/sdr/MALA954228), Jan 3, 1995: UPLOCK SWITCH. FAILED. FLT NR 3038 - DURING CLIMB-OUT FROM CAK, THE NOSE GEAR BEGAN TO CYCLE. THE AIRCRAFT CONTINUED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE NOSE 

## STCs that may be installed (OpenAirDocs) (110, 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 110: https://openairdocs.org/aircraft/N422MA/stcs.md

## Related

- Other Fairchild SA227-AC aircraft: https://openairdocs.org/model/fairchild-sa227-ac/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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