# Accident 19810408016629A: Enstrm F28A, Knoxville, TN, April 8, 1981

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 8, 1981, 16:11 local time
- Place: Knoxville, TN
- Airport: Mckee Tyson
- Damage: Substantial damage
- Phase of flight: Hovering
- Operating rules: General operating rules (Part 91)
- Location: 35.9606° N, 83.9207° W: Placed by OpenAirDocs: center of Knoxville, TN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.9606&lon=-83.9207&mi=10
- Aircraft: N4871, a cancelled registration (https://openairdocs.org/deregistered/N4871-2012-08-08) (OpenAirDocs)
- Registry model: Enstrom F-28A (registry code 3300406, https://openairdocs.org/model/enstrom-f-28a) (OpenAirDocs)
- Registry engine: Lycoming I0360 series (registry code 41515, https://openairdocs.org/engine/lycoming-i0360-series) (OpenAirDocs)
- Reported make and model: ENSTRM F28A
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 5,997 total, 26 in this make and model, 102 in the last 90 days
- NTSB investigation: [NTSB ATL81FKW15](https://openairdocs.org/ntsb/ATL81FKW15) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19810408016629A

## Narrative

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

LOST ROTOR RPM IN DOWNWIND TAKEOFF HOVER. SKID HIT SIDEWAYS & COLLAPSED. HELICOPTER ROLLED OVER.

## 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 ATL81FKW15](https://openairdocs.org/ntsb/ATL81FKW15), Apr 8, 1981: Enstrom F-28A (N4871), Knoxville, TN, 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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