# N5691H: 1979 Enstrom Helicopter 280C, registration cancelled 2013-04-23

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 23, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Enstrom Helicopter 280C](https://openairdocs.org/model/enstrom-helicopter-280c) (registry code 3300505)
- Engine: [Lycoming HI0-360 series](https://openairdocs.org/engine/lycoming-hi0-360-series) (registry code 41553)
- Data sheets: [TCDS H1CE](https://openairdocs.org/tcds/H1CE), [TCDS 1E10](https://openairdocs.org/tcds/1E10) (OpenAirDocs)
- Serial number: 1175
- Year built: 1979
- Type of aircraft: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Standard, normal
- Airworthiness date: June 30, 1979
- Certificate issued: September 24, 1980
- Last registry action: July 4, 1986
- Mode S code: A74ADC
- Owner when cancelled: [Telecommunications Properties](https://openairdocs.org/faa-owner/TELECOMMUNICATIONS%20PROPERTIES)
- Location: [Concord, CA](https://openairdocs.org/faa-place/CA/Concord)
- Owner type: Partnership
- Owner's area on the map: 37.9932° N, 122.0356° W: Placed by OpenAirDocs at the center of ZIP code 94520, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N5691H
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5691H
- Page: https://openairdocs.org/deregistered/N5691H-2013-04-23

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 Helicopter 280C: https://openairdocs.org/model/enstrom-helicopter-280c.md

## 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 LAX83LA134](https://openairdocs.org/ntsb/LAX83LA134), Mar 11, 1983: Enstrom F280C (N5691H), Concord, CA, substantial damage

## 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.

- [Accident 19830311007329A](https://openairdocs.org/incident/19830311007329A), Mar 11, 1983: Enstrm 280C (N5691H), Concord, CA, Substantial damage. Struck a tree on an attempted takeoff from a saddle in the hills. Insufficient egress area.

## Other aircraft with N5691H

- [Cancelled 1972-01-05](https://openairdocs.org/deregistered/N5691H-1972-01-05): Piper PA-16, S/N 16-291. Owner: [Pipestone Funeral Chapel Inc](https://openairdocs.org/faa-owner/PIPESTONE%20FUNERAL%20CHAPEL%20INC), [Pipestone, MN](https://openairdocs.org/faa-place/MN/Pipestone)

---
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.