# N55CW: 1942 Douglas C54D-DC

- Status: Valid registration
- Airframe: [Douglas C54D-DC](https://openairdocs.org/model/douglas-c54d-dc) (registry code 3021522, 60 seats)
- Engine: [Pratt & Whitney R-2000](https://openairdocs.org/engine/pratt-whitney-r-2000) (registry code 51755)
- Data sheets: [TCDS A-762](https://openairdocs.org/tcds/A-762) (The Boeing Company) (OpenAirDocs)
- Serial number: 10673
- Year built: 1942
- Type: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard, transport
- Airworthiness date: August 19, 2011
- Certificate issued: August 12, 2011
- Expires: August 31, 2027
- Mode S code: A6FD59
- Registered owner: [Aircraft Guaranty Corp Trustee](https://openairdocs.org/faa-owner/AIRCRAFT%20GUARANTY%20CORP%20TRUSTEE)
- Location: [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City)
- Owner type: Corporation
- Owner's area on the map: 35.3253° N, 97.5522° W: Placed by OpenAirDocs at the center of ZIP code 73170, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=55CW
- Page: https://openairdocs.org/aircraft/N55CW

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): 44 in force

### Matched by airframe (Douglas C54D-DC)

- [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2011-12-01](https://openairdocs.org/ad/2011-12-01): Equipment/Furnishings · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 268 more. Effective Aug 1, 2011
- [AD 93-14-12](https://openairdocs.org/ad/93-14-12): Crewmember Protective Breathing Equipment Units · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 201 more. Effective Sep 2, 1993
- [AD 85-23-04](https://openairdocs.org/ad/85-23-04): LH/RH Elevator Trim Tab Inspection · Boeing C54-DC, C54A-DC, C54B-DC and 4 more. Effective Dec 5, 1985
- [AD 47-02-03](https://openairdocs.org/ad/47-02-03): Accumulator · Boeing C54-DC, C54A-DC, C54B-DC and 4 more. Effective Mar 27, 1980
- [AD 77-10-01](https://openairdocs.org/ad/77-10-01): Fire Resistant Prop Feathering System · Boeing C54-DC, C54A-DC, C54B-DC and 4 more. Effective Jun 16, 1977
- [AD 57-16-01](https://openairdocs.org/ad/57-16-01): Nose Gear Piston Tube · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 49-38-02](https://openairdocs.org/ad/49-38-02): Bolt Replacement · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-44-01](https://openairdocs.org/ad/48-44-01): Nose Gear Orifice Fitting · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-28-02](https://openairdocs.org/ad/48-28-02): Cabin Heater Combustion Ducts · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-17-04](https://openairdocs.org/ad/48-17-04): Vacuum Pumps · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-15-03](https://openairdocs.org/ad/48-15-03): Hydraulic Pressure Regulator Rework · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-14-04](https://openairdocs.org/ad/48-14-04): Tailpipe Shroud Deflector · Boeing C54-DC, C54A-DC, C54B-DC and 2 more
- [AD 48-12-02](https://openairdocs.org/ad/48-12-02): Nose And Cabin Heater Rework · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-12-01](https://openairdocs.org/ad/48-12-01): Fire Prevention Requirements · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-09-02](https://openairdocs.org/ad/48-09-02): Electrical Distribution Bus · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-09-01](https://openairdocs.org/ad/48-09-01): Fuel Transfer Placard · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-06-05](https://openairdocs.org/ad/48-06-05): Control Surface Attachment Rework · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-03-02](https://openairdocs.org/ad/48-03-02): Emergency Air Brake · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-02-02](https://openairdocs.org/ad/48-02-02): Fire Detector Clamp · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 48-01-01](https://openairdocs.org/ad/48-01-01): Wheel-Retaining Flange · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-42-03](https://openairdocs.org/ad/47-42-03): Fire Prevention Changes · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-42-02](https://openairdocs.org/ad/47-42-02): Cowling Fire Seal · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-42-01](https://openairdocs.org/ad/47-42-01): Gust Lock Rework · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-33-01](https://openairdocs.org/ad/47-33-01): Horizontal Stabilizer Outer Hinge Bracket · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-27-04](https://openairdocs.org/ad/47-27-04): Exhaust Collector Rings · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-27-02](https://openairdocs.org/ad/47-27-02): Spar Web Structure · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-16-02](https://openairdocs.org/ad/47-16-02): Flexible Conduit Between the Solenoid and the Firewall Junction Box · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-16-01](https://openairdocs.org/ad/47-16-01): Circuit Breaker Switches in Each Nacelle Junction Box · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-12-02](https://openairdocs.org/ad/47-12-02): Center Main Bearings · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-12-01](https://openairdocs.org/ad/47-12-01): Openings Around the Control Cables and Flap Buss System · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-02-05](https://openairdocs.org/ad/47-02-05): Electrical System · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-02-04](https://openairdocs.org/ad/47-02-04): Engine Primer Solenoid · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-02-02](https://openairdocs.org/ad/47-02-02): Vertical Stabilizer Forward Attach Fitting · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 47-02-01](https://openairdocs.org/ad/47-02-01): Exhaust Collector Rings · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 46-39-05](https://openairdocs.org/ad/46-39-05): Main Fuel Line Supporting Brackets · Boeing C54-DC, C54A-DC, C54B-DC and 3 more
- [AD 46-39-04](https://openairdocs.org/ad/46-39-04): Fuel Tank Selector and Crossfeed Valves · Boeing C54-DC, C54A-DC, C54B-DC and 3 more
- [AD 46-39-03](https://openairdocs.org/ad/46-39-03): Magneto Wires · Boeing C54-DC, C54A-DC, C54B-DC and 3 more
- [AD 46-27-02](https://openairdocs.org/ad/46-27-02): Nose Wheel Brace Strut Collar · Boeing C54-DC, C54A-DC, C54B-DC and 4 more
- [AD 46-27-01](https://openairdocs.org/ad/46-27-01): Spar Webs · Boeing C54-DC, C54A-DC, C54B-DC and 3 more
- [AD 46-24-02](https://openairdocs.org/ad/46-24-02): Magneto Wires · Boeing C54-DC, C54A-DC, C54B-DC and 3 more
- [AD 46-11-03](https://openairdocs.org/ad/46-11-03): Landing Gear Door Stud · Boeing C54-DC, C54A-DC, C54B-DC and 1 more
- [AD 46-11-02](https://openairdocs.org/ad/46-11-02): Copilot Oxygen Regulator · Boeing C54-DC, C54A-DC, C54B-DC and 3 more

### Matched by engine (Pratt & Whitney R-2000)

None in force.

## Information bulletins (advisory) (1 in force)

- [SAIB NM-15-03](https://openairdocs.org/saib/NM-15-03): Flight Controls. Issued Nov 24, 2014

## NTSB investigations

None matched to N55CW.

## FAA accident and incident reports

None matched to N55CW.

## 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) (17)

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 (Douglas C54D-DC)

- [STC SA2622NM](https://openairdocs.org/stc/SA2622NM): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101). Precise Flight Inc
- [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation
- [STC SA01282NY](https://openairdocs.org/stc/SA01282NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K015 on aircraft powered by Pratt & Whitney radial reciprocating engine Series R-985, R-1340 and R-1830. Airwolf Filter Corporation
- [STC SA3254WE](https://openairdocs.org/stc/SA3254WE): Nose wheel installation. United Aeronautical Corporation
- [STC SA3298WE](https://openairdocs.org/stc/SA3298WE): Bendix wheels and brakes installation. United Aeronautical Corporation
- [STC ST334CH](https://openairdocs.org/stc/ST334CH): Installation of Superflite 102 fabric. Aviation Products Systems Inc
- [STC SA1-115](https://openairdocs.org/stc/SA1-115): Installation of Chamberlain 1012 Series radomes. Saint-Gobain Performance Plastics Corp
- [STC SA1-507](https://openairdocs.org/stc/SA1-507): 2012X Series radomes. Saint-Gobain Performance Plastics Corp
- [STC SA8075SW](https://openairdocs.org/stc/SA8075SW): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER). Razorback Fabrics Inc
- [STC SA1365GL](https://openairdocs.org/stc/SA1365GL): Surrendered and incorporated into STC ST334CH. Cooper Aviation Supply Company, Inc
- [STC SA3173WE](https://openairdocs.org/stc/SA3173WE): Installation of P&WA R-2000-6 engines in Douglas C54 airplanes. Globe Air, Inc
- [STC SA1351WE](https://openairdocs.org/stc/SA1351WE): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12). Ceconite Inc
- [STC SA1621CE](https://openairdocs.org/stc/SA1621CE): Restricted category tanker conversion. Central Air Services
- [STC SA1587CE](https://openairdocs.org/stc/SA1587CE): Restricted category tanker conversion. Central Air Services
- [STC SA1404CE](https://openairdocs.org/stc/SA1404CE): Restricted category tanker conversion. Central Air Services
- [STC SA1334CE](https://openairdocs.org/stc/SA1334CE): Restricted category tanker conversion. Central Air Services
- [STC SA3199WE](https://openairdocs.org/stc/SA3199WE): Cargo handling system installation. Pemco Engineers, Inc

## Earlier aircraft with N55CW

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N55CW before.

- [Cancelled 2009-04-08](https://openairdocs.org/deregistered/N55CW-2009-04-08): Bellanca 7ECA, S/N 1294-79, built 1979. Triennial form not returned. Owner: [Sutton Aviation Inc](https://openairdocs.org/faa-owner/SUTTON%20AVIATION%20INC), [Lapeer, MI](https://openairdocs.org/faa-place/MI/Lapeer)
- [Cancelled 1993-03-19](https://openairdocs.org/deregistered/N55CW-1993-03-19): Bell 206B, S/N 3376. Exported to Canada. Owner: [Whitcomb Frank W DBA](https://openairdocs.org/faa-owner/WHITCOMB%20FRANK%20W%20DBA), [Walpole, NH](https://openairdocs.org/faa-place/NH/Walpole)

## Related

- Other Douglas C54D-DC aircraft: https://openairdocs.org/model/douglas-c54d-dc/aircraft.md
- The Pratt & Whitney R-2000 engine: https://openairdocs.org/engine/pratt-whitney-r-2000.md

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