# NTSB investigations: Hughes 269B: Loss of engine power

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 CHI01LA293](https://openairdocs.org/ntsb/CHI01LA293.md): Hughes 269B · Pontiac, MI · Accident · No injuries · Limited investigation · Final report · Aug 26, 2001 · N9390F · Substantial damage
  > the checklist not compiled with by the operator and not verified by the operator’s pilot and the operator's flight instructor. An additional cause was the improper autorotation by the pilot in command. The out of calibration engine idle speed was a…
- [NTSB NYC97LA138](https://openairdocs.org/ntsb/NYC97LA138.md): Hughes 269B · Paducah, KY · Accident · Minor injuries · Limited investigation · Final report · Jul 14, 1997 · N9398F · Substantial damage
  > The failure of maintenance personnel to identify and correct the worn holes on the lower fuselage fairing and the failure of the flight instructor to maintain main rotor RPM during the autorotative landing. A contributing factor was the flight instructor's…
- [NTSB LAX96LA217](https://openairdocs.org/ntsb/LAX96LA217.md): Hughes 269B · Georgetown, CA · Accident · No injuries · Limited investigation · Final report · Jun 1, 1996 · N9332F · Substantial damage
  > loss of engine power for undetermined reason(s), while practicing an autorotation, which resulted in a forced landing; and the flight instructor's misjudged landing flare during the emergency autorotation/landing.
- [NTSB LAX88LA233](https://openairdocs.org/ntsb/LAX88LA233.md): Hughes 269B · Big Bear, CA · Accident · No injuries · Limited investigation · Final report · Jun 25, 1988 · N9350F · Substantial damage
  > While cruising, the plt perceived he was experiencing a loss of engine & rotor RPM. The plt stated that he attempted to regain RPM by autorotating. The RPM was regained in the autorotative descent. The plt elected to continue the descent to a landing. Upon…
- [NTSB MIA82DA096](https://openairdocs.org/ntsb/MIA82DA096.md): Hughes 269B · Near Kissimmee, FL · Accident · Minor injuries · Final report · Apr 12, 1982 · N9393F · Substantial damage
  > The engine lost power while the pilot was on a low altitude aerial observation flight over trees. He attempted to land on a nearby road. While approaching the road at 10 to 15 ft AGL, he ran out of RPM. He hit the ground flat, but did not roll over.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470502')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 350))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4470502&occurrence=350

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