# Accident 19810909058069A: Enstrm 280C, Helena, MT, September 9, 1981

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 9, 1981, 12:10 local time
- Place: Helena, MT
- Airport: Helena
- Damage: Substantial damage
- Phase of flight: Sfl Autorotation
- Operating rules: General operating rules (Part 91)
- Location: 46.6067° N, 111.9833° W: Placed by OpenAirDocs at HELENA RGNL (HLN), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.6067&lon=-111.9833&mi=10
- Aircraft: N51694, a cancelled registration (https://openairdocs.org/deregistered/N51694-1989-01-06) (OpenAirDocs)
- Registry model: Enstrom Helicopter 280C (registry code 3300505, https://openairdocs.org/model/enstrom-helicopter-280c) (OpenAirDocs)
- Reported make and model: ENSTRM 280C
- Reported engine: LYC HIO360E1AD
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 3,954 total, 8 in this make and model, 0 in the last 90 days
- NTSB investigation: [NTSB DEN81FTI19](https://openairdocs.org/ntsb/DEN81FTI19) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19810909058069A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

DURING SIMULATED AUTOROTATION, ENGINE QUIT AND HARD LANDING OCCURRED CAUSING SUBSTANTIAL DAMAGE.

## The NTSB's investigation of this event (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 DEN81FTI19](https://openairdocs.org/ntsb/DEN81FTI19), Sep 9, 1981: Enstrom 280C (N51694), Helena, MT, substantial damage

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. For accidents, the NTSB's own investigation is the fuller record.

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