# N51737: 1978 Enstrom F-28C, registration cancelled 2013-04-01

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 1, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Enstrom F-28C](https://openairdocs.org/model/enstrom-f-28c) (registry code 3300407)
- Engine: [Lycoming HIO-360 series](https://openairdocs.org/engine/lycoming-hio-360-series) (registry code 41524)
- Data sheets: [TCDS H1CE](https://openairdocs.org/tcds/H1CE), [TCDS 1E10](https://openairdocs.org/tcds/1E10) (OpenAirDocs)
- Serial number: 426
- Year built: 1978
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: May 1, 1978
- Certificate issued: June 6, 1984
- Last registry action: October 15, 1996
- Mode S code: A67E51
- Owner when cancelled: [Helicopters Unlimited Inc](https://openairdocs.org/faa-owner/HELICOPTERS%20UNLIMITED%20INC)
- Location: [Oakland, CA](https://openairdocs.org/faa-place/CA/Oakland)
- Owner type: Corporation
- Owner's area on the map: 37.8044° N, 122.2708° W: Placed by OpenAirDocs: center of Oakland, CA, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N51737
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=51737
- Page: https://openairdocs.org/deregistered/N51737-2013-04-01

From the FAA registry file of November 5, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Enstrom F-28C: https://openairdocs.org/model/enstrom-f-28c.md

## FAA accident and incident reports (1)

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 19790418024189I](https://openairdocs.org/incident/19790418024189I), Apr 18, 1979: Enstrm F28C (N51737), Oakland, CA, Minor damage. Student lost directional control during hover practive. Hit a parked helicopter N51747.

## Other aircraft with N51737

- [Cancelled 1948-11-02](https://openairdocs.org/deregistered/N51737-1948-11-02): Fairchild M-62A, S/N T42-3426. Owner: [R Z Howell](https://openairdocs.org/faa-owner/R%20Z%20HOWELL), [Roanoke, VA](https://openairdocs.org/faa-place/VA/Roanoke)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.