# N91945: 1952 Douglas AD4-DW

- Status: Valid registration
- Airframe: [Douglas AD4-DW](https://openairdocs.org/model/douglas-ad4-dw) (registry code 3026016, 2 seats)
- Engine: [Wright R3350-32WA](https://openairdocs.org/engine/wright-r3350-32wa) (registry code 67042)
- Serial number: 126882-SF85
- Year built: 1952
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: June 16, 1993
- Certificate issued: June 7, 2002
- Expires: August 31, 2027
- Mode S code: ACBB1C
- Registered owners: [Marine Aviation Museum Inc](https://openairdocs.org/faa-owner/MARINE%20AVIATION%20MUSEUM%20INC), [Sharpe Richard E Jr](https://openairdocs.org/faa-owner/SHARPE%20RICHARD%20E%20JR)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Co-owned
- Owner's area on the map: 39.7376° N, 75.6671° W: Placed by OpenAirDocs at the center of ZIP code 19808, 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=91945
- Page: https://openairdocs.org/aircraft/N91945

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): 0 in force

### Matched by airframe (Douglas AD4-DW)

None in force.

### Matched by engine (Wright R3350-32WA)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (2)

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 MIA92LA103](https://openairdocs.org/ntsb/MIA92LA103), Apr 4, 1992: Douglas AD4-DW (N91945), Titusville, FL, substantial damage, 1 fatal. Probable cause: THE PILOT IN COMMANDS APPROACH AT HIGHER THAN NORMAL AIRSPEED AND HIS LANDING THE AIRCRAFT AT HIGHER THAN NORMAL AIRSPEED AT A POINT ONE HALF TO THREE QUARTERS DOWN THE RUNWAY RESULTING IN THE…
- [NTSB CHI79DEG10](https://openairdocs.org/ntsb/CHI79DEG10), Apr 3, 1979: Douglas AD-4N (N91945), Harrison, OH, substantial damage

## 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 19920404008739A](https://openairdocs.org/incident/19920404008739A), Apr 4, 1992: N91945, Titusville, FL, Substantial damage, 1 fatal. Overshot runway after air show routine. Nosed over off end runway.
- [Accident 19790403006389A](https://openairdocs.org/incident/19790403006389A), Apr 3, 1979: Doug AD4NKALAERO (N91945), Harrison, OH, Substantial damage. Pilot landed short of runway. Right main gear broke off.

## 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)

None matched to this aircraft's models.

## Earlier aircraft with N91945

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N91945 before.

- [Cancelled 1970-06-26](https://openairdocs.org/deregistered/N91945-1970-06-26): Cessna 182M, S/N 18259965, built 1969. Exported to Mexico. Owner: [Pan Am Distributors Inc](https://openairdocs.org/faa-owner/PAN%20AM%20DISTRIBUTORS%20INC), [Brownsville, TX](https://openairdocs.org/faa-place/TX/Brownsville)
- [Cancelled 1956-02-24](https://openairdocs.org/deregistered/N91945-1956-02-24): Piper J3C-65, S/N 16365. Owner: [Ziegler William A](https://openairdocs.org/faa-owner/ZIEGLER%20WILLIAM%20A), [Philadelphia, PA](https://openairdocs.org/faa-place/PA/Philadelphia)

## Related

- Other Douglas AD4-DW aircraft: https://openairdocs.org/model/douglas-ad4-dw/aircraft.md
- The Wright R3350-32WA engine: https://openairdocs.org/engine/wright-r3350-32wa.md

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