# N3948: 1971 Allen HEADWIND M-2

- Status: Valid registration
- Airframe: [Allen HEADWIND M-2](https://openairdocs.org/model/allen-headwind-m-2) (registry code 05619AZ, 1 seats)
- Engine: [Franklin 4AC176B series](https://openairdocs.org/engine/franklin-4ac176b-series) (registry code 27006)
- Serial number: AB-7
- Year built: 1971
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: March 20, 1979
- Certificate issued: August 18, 2021
- Expires: August 31, 2028
- Mode S code: A49515
- Registered owner: [Carpenter Thomas L](https://openairdocs.org/faa-owner/CARPENTER%20THOMAS%20L)
- Location: [Kingman, AZ](https://openairdocs.org/faa-place/AZ/Kingman)
- Owner type: Individual
- Owner's area on the map: 35.4610° N, 114.0178° W: Placed by OpenAirDocs at the center of ZIP code 86409, within about 11 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3948
- Page: https://openairdocs.org/aircraft/N3948

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 Franklin 4AC176B model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Allen HEADWIND M-2)

None in force.

### Matched by engine (Franklin 4AC176B series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N3948.

## FAA accident and incident reports

None matched to N3948.

## Service difficulty reports (1)

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 2001FA0000469](https://openairdocs.org/sdr/2001FA0000469), Oct 3, 2001: GEAR. BROKEN. FOLLOWING TAKEOFF, AT ABOUT 200 FT, ENGINE FAILED. AIRCRAFT LANDED IN FIELD WITHOUT FURTHER INCIDENT. SUBSEQUENT INSPECTION REVEALED CAM GEAR, WHICH DRIVE BOTH 

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Allen HEADWIND M-2 aircraft: https://openairdocs.org/model/allen-headwind-m-2/aircraft.md
- The Franklin 4AC176B series engine: https://openairdocs.org/engine/franklin-4ac176b-series.md

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