# N1837M: 1944 Curtiss Wright C-46F

- Status: Valid registration
- Airframe: [Curtiss Wright C-46F](https://openairdocs.org/model/curtiss-wright-c-46f) (registry code 2622608, 65 seats)
- Engine: [Pratt & Whitney R-2800 series](https://openairdocs.org/engine/pratt-whitney-r-2800-series) (registry code 52026)
- Serial number: 22388
- Year built: 1944
- Type: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Restricted, other
- Airworthiness date: February 4, 2025
- Certificate issued: September 13, 1990
- Expires: April 30, 2028
- Mode S code: A14F2A
- Registered owner: [Everts Air Fuel Inc](https://openairdocs.org/faa-owner/EVERTS%20AIR%20FUEL%20INC)
- Location: [Fairbanks, AK](https://openairdocs.org/faa-place/AK/Fairbanks)
- Owner type: Corporation
- Owner's area on the map: 64.0097° N, 144.6830° W: Placed by OpenAirDocs at the center of ZIP code 99706, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1837M
- Page: https://openairdocs.org/aircraft/N1837M

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 Pratt & Whitney R-2800 model are included.

## ADs that may apply (OpenAirDocs): 41 in force

### Matched by airframe (Curtiss Wright C-46F)

- [AD 79-05-10](https://openairdocs.org/ad/79-05-10): Wheel Well · Airlift International C-46A, C-46D, C-46F and 12 more. Effective Mar 15, 1979
- [AD 74-18-03](https://openairdocs.org/ad/74-18-03): Main Landing Gear Axle Elbow · Airlift International C-46A, C-46D, C-46F and 12 more. Effective Aug 30, 1974
- [AD 66-05-01](https://openairdocs.org/ad/66-05-01): Main Landing Gear Drag Struts · Airlift International C-46A, C-46D, C-46F and 12 more. Effective Feb 25, 1966
- [AD 66-02-02](https://openairdocs.org/ad/66-02-02): Main Hydraulic Accumulator · Airlift International C-46A, C-46D, C-46F and 12 more. Effective Feb 5, 1966
- [AD 65-17-02](https://openairdocs.org/ad/65-17-02): Landing Gear Position Warning Light · Airlift International C-46A, C-46D, C-46F and 12 more. Effective Sep 2, 1965
- [AD 62-27-03](https://openairdocs.org/ad/62-27-03): Rudder Spring Tab · Airlift International C-46A, C-46D, C-46F and 12 more. Effective Jan 29, 1963
- [AD 60-25-01](https://openairdocs.org/ad/60-25-01): Wing Panel Attachment Bolts · Airlift International C-46A, C-46D, C-46F and 12 more. Effective Dec 6, 1960
- [AD 60-23-02](https://openairdocs.org/ad/60-23-02): Flap Actuator · Airlift International C-46A, C-46D, C-46F and 12 more. Effective Nov 4, 1960
- [AD 62-10-02](https://openairdocs.org/ad/62-10-02): Landing Gear Doors · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 60-03-02](https://openairdocs.org/ad/60-03-02): Cargo and Baggage Compartments · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 59-07-02](https://openairdocs.org/ad/59-07-02): Auxiliary Hydraulic Pump · L. B. Smith C-46A, C-46D and C-46F
- [AD 58-20-01](https://openairdocs.org/ad/58-20-01): Tail Wheel Retract Yoke · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 58-17-03](https://openairdocs.org/ad/58-17-03): Engine Cylinder · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 58-17-02](https://openairdocs.org/ad/58-17-02): Horizontal Tail Surfaces · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 57-15-02](https://openairdocs.org/ad/57-15-02): Lightening Holes · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 57-11-01](https://openairdocs.org/ad/57-11-01): Elevator Spring Tab Cartridge Assemblies · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 57-05-01](https://openairdocs.org/ad/57-05-01): Hydraulic Vent System · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 55-09-02](https://openairdocs.org/ad/55-09-02): Terminal Assemblies · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 54-14-01](https://openairdocs.org/ad/54-14-01): Horizontal Stabilizer Rib · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 54-05-01](https://openairdocs.org/ad/54-05-01): Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 53-10-01](https://openairdocs.org/ad/53-10-01): Vacuum Pump Discharge Port · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 52-19-01](https://openairdocs.org/ad/52-19-01): Cabin Heater Installation · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 52-18-01](https://openairdocs.org/ad/52-18-01): Carburetor Adapter Gasket · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 52-17-02](https://openairdocs.org/ad/52-17-02): Wheel Shimmy Damper Support · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 52-12-02](https://openairdocs.org/ad/52-12-02): Passenger Cabin Door · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 52-10-01](https://openairdocs.org/ad/52-10-01): Electric Power System · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 51-29-02](https://openairdocs.org/ad/51-29-02): Main Landing Gear · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 51-20-01](https://openairdocs.org/ad/51-20-01): Cockpit Light · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 51-10-06](https://openairdocs.org/ad/51-10-06): Hinge Fittings · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 50-29-01](https://openairdocs.org/ad/50-29-01): Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 50-26-01](https://openairdocs.org/ad/50-26-01): Landing Gear Side Braces · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 49-25-01](https://openairdocs.org/ad/49-25-01): Cargo Compartment Fire Protection · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 49-18-01](https://openairdocs.org/ad/49-18-01): Combustion Heater Fire Protection · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 49-12-01](https://openairdocs.org/ad/49-12-01): Aileron Trim Tab · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 48-44-02](https://openairdocs.org/ad/48-44-02): Wing Attach Bolts · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 48-03-05](https://openairdocs.org/ad/48-03-05): Hydraulic Lines · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 47-51-07](https://openairdocs.org/ad/47-51-07): Landing Gear Drag Strut · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 47-51-05](https://openairdocs.org/ad/47-51-05): Aileron Horn · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 47-51-04](https://openairdocs.org/ad/47-51-04): Propeller Antiheat Shield · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 47-51-03](https://openairdocs.org/ad/47-51-03): Aileron Rib Rework · Airlift International C-46A, C-46D, C-46F and 12 more
- [AD 47-51-02](https://openairdocs.org/ad/47-51-02): Elevator Hinge Bolts · Airlift International C-46A, C-46D, C-46F and 12 more

### Matched by engine (Pratt & Whitney R-2800 series)

None in force.

## Information bulletins (advisory)

None matched.

## 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 ANC13LA063](https://openairdocs.org/ntsb/ANC13LA063), Jul 3, 2013: Curtiss Wright C-46F (N1837M), Fairbanks, AK, substantial damage. Probable cause: The failure of the right main landing gear side brace due to fatigue, which resulted in a collapse of the right main landing gear.

## FAA accident and incident reports (2)

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.

- [Accident 20130702015419A](https://openairdocs.org/incident/20130702015419A), Jul 2, 2013: Curtiss Wright C-46F (N1837M), Fairbanks, AK, Substantial damage. Aircrew noted no downlock indication lights after gear extension in prep for landing. Cycled gear a few times after initial extension failure when green down…
- [Incident 20020709013919I](https://openairdocs.org/incident/20020709013919I), Jul 9, 2002: Curtis C46FFLYTIGER (N1837M), Iliamna, AK, Minor damage. (-23) [privacy data omitted] enroute 9K2 to ena when aircraft experienced no. 1 engine fire accompanied by both fire warning flight and bell. Fire was observed…

## Service difficulty reports (3)

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 EVAB2013F00140](https://openairdocs.org/sdr/EVAB2013F00140), Jul 3, 2013: LANDING GEAR. COLLAPSED. RT MLG COLLAPSED ON PARKING CAUSING DAMAGE TO PROP AND RIGHT WING.
- [SDR EVAB2002001](https://openairdocs.org/sdr/EVAB2002001), Jul 10, 2002: INTAKE PIPE. CRACKED. EXPERIENCED AN ENGINE FIRE ACCOMPANIED BY BOTH AUDIO AND VISUAL WARNING. FIRE WAS OBSERVED FROM THE COWLING. WHEN THE THROTTLE WAS PULLED BACK THE FIRE WENT OUT
- [SDR EVAB2001001](https://openairdocs.org/sdr/EVAB2001001), Jan 2, 2001: GOVERNOR. FAULTY. NR 1 ENGINE FEATHERED DUE TO UNCONTROLABLE RPM CAUSED BY A FAULTY PROP GOVERNOR. REPLACED GOVERNOR, GROUND CHECK, GOOD.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Curtiss Wright C-46F aircraft: https://openairdocs.org/model/curtiss-wright-c-46f/aircraft.md
- The Pratt & Whitney R-2800 series engine: https://openairdocs.org/engine/pratt-whitney-r-2800-series.md

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