# NTSB investigations: Enstrom Helicopter 280C, CA

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB LAX94LA239](https://openairdocs.org/ntsb/LAX94LA239.md): Enstrom 280C · California City, CA · Accident · No injuries · Limited investigation · Final report · Jun 5, 1994 · N123MT · Substantial damage
  > the pilot's inadequate compensation for the gusty wind conditions and his subsequent failure to maintain control of the helicopter.
- [NTSB LAX90LA121](https://openairdocs.org/ntsb/LAX90LA121.md): Enstrom F-28C · Canyon Lake, CA · Accident · No injuries · Limited investigation · Final report · Mar 18, 1990 · N554H · Substantial damage
  > The pilot to maintain proper rotor RPM during a practice autorotation. Contributing to the accident was the uneven terrain selected by the pilot to conduct practice touch maneuvers.
- [NTSB LAX88FA140](https://openairdocs.org/ntsb/LAX88FA140.md): Enstrom 280C · Fremont, CA · Accident · No injuries · Field investigation · Final report · Mar 27, 1988 · N5692P · Substantial damage
  > Failure of the engine to main rotor drive system due to a drive belt slippage caused by a drive pulley worn beyond its service limit. Contributing to the accident was the inadequate factory maintenance manuals which did not provide the serviceable limits for…
- [NTSB LAX86LA291](https://openairdocs.org/ntsb/LAX86LA291.md): Enstrom EN-280-C · Los Altos, CA · Accident · No injuries · Limited investigation · Final report · Jul 13, 1986 · N5692P · Substantial damage
  > The instructor stated that during a practice auto rotative landing the helicopter lost rotor RPM and a hard landing followed. On ground contact, the main rotor blades struck the tail cone, resulting in substantial damage. The instructor further stated that…
- [NTSB LAX83LA248](https://openairdocs.org/ntsb/LAX83LA248.md): Enstrom 280C · Goshen, CA · Accident · Minor injuries · Limited investigation · Final report · May 24, 1983 · N51763 · Substantial damage
  > About 5 min after taking off, the plt noticed a sudden loss of power to the tail rotor. He made an emergency landing in an alfalfa field. He reported that during an autorotative landing, he had insufficient collective to flare properly. Subsequently, the main…
- [NTSB LAX83LA134](https://openairdocs.org/ntsb/LAX83LA134.md): Enstrom F280C · Concord, CA · Accident · Minor injuries · Limited investigation · Final report · Mar 11, 1983 · N5691H · Substantial damage
  > The helicopter collided with a tree during a landing after a decay in rotor RPM during takeoff. According to the pilot the acft was facing southeast prior to departure and the pilot estimated that the wind was from the northwest at 8 KTS. Following a pedal…
- [NTSB LAX81FA089](https://openairdocs.org/ntsb/LAX81FA089.md): Enstrom F-280C · Bridgeport, CA · Accident · No injuries · Closed · May 20, 1981 · N51708 · Destroyed

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'CA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3300505'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=3300505&state=CA

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