# Accident 19860713032589A: Enstrm 280C, Los Altos, CA, July 13, 1986

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 13, 1986, 10:15 local time
- Place: Los Altos, CA
- Damage: Substantial damage
- Phase of flight: Sfl Autorotation
- Operating rules: General operating rules (Part 91)
- Location: 37.3598° N, 122.1406° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=37.3598&lon=-122.1406&mi=10
- Aircraft: N5692P, a cancelled registration (https://openairdocs.org/deregistered/N5692P-2011-05-18) (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 HIO360E1BD
- Fatal injuries: 0
- Pilot flight hours: 2,394 total, 215 in this make and model, 78 in the last 90 days
- NTSB investigation: [NTSB LAX86LA291](https://openairdocs.org/ntsb/LAX86LA291) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19860713032589A

## Narrative

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

THE HELICOPTER LANDED HARD DURING AUTOROTATION PRACTICE. INSTRUCTOR FAILED TO MONITOR STUDENT ACTIONS CLOSELY.

## 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 LAX86LA291](https://openairdocs.org/ntsb/LAX86LA291), Jul 13, 1986: Enstrom EN-280-C (N5692P), Los Altos, CA, substantial damage

## Other reports on N5692P (2)

Matched to the same aircraft by N-number and date.

- [Accident 19880327008969A](https://openairdocs.org/incident/19880327008969A), Mar 27, 1988: Enstrm 280C (N5692P), Fremont, CA, Substantial damage. Worn main rotor drive pulley allowed belt slippage and rotor decay. Unable to arrest autorotation descent. Crashed.
- [Incident 19880305014469I](https://openairdocs.org/incident/19880305014469I), Mar 5, 1988: Enstrm 280C (N5692P), San Jose, CA, Minor damage. Precautionary landing in an open field due to a hung starter. Tapped solenoid and starter disengaged. Took off.

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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