# NTSB investigations: Hughes 369HS: Loss of engine power(partial) - mech failure/malf

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 LAX98LA053](https://openairdocs.org/ntsb/LAX98LA053.md): McDonnell Douglas 369HS · Saipan, India · Accident · Minor injuries · Limited investigation · Final report · Dec 6, 1997 · N9068F · Destroyed
  > The failure of the maintenance facility to comply with the service bulletins, which resulted in the development of a corrosion pit, subsequent leakage and failure of the acceleration bellows of the fuel control.
- [NTSB MIA93LA143](https://openairdocs.org/ntsb/MIA93LA143.md): Hughes 369HS · Orlando, FL · Accident · Minor injuries · Limited investigation · Final report · Jun 15, 1993 · N500RT · Substantial damage
  > Unsuitable terrain encountered during the autorotative forced landing. Contributing to the accident was total loss of engine power due to seizure of the compressor impeller following failure of the no.2 bearing for undetermined reasons.
- [NTSB MIA87FA046](https://openairdocs.org/ntsb/MIA87FA046.md): Hughes 369HS · Zephyrhills, FL · Accident · 2 fatal · Field investigation · Final report · Dec 9, 1986 · N8390F · Destroyed
  > A witness stated that she heard the eng on the helicopter quit. She looked out her window and watched the helicopter hit the ground, bounce, hit again, flip over and the tail broke off. The helicopter then burst into flames and exploded. Exam of the eng…
- [NTSB LAX84LA163](https://openairdocs.org/ntsb/LAX84LA163.md): Hughes 500C (369HS) · San Diego, CA · Accident · Serious injuries · Limited investigation · Final report · Feb 5, 1984 · N8319F · Substantial damage
  > The plt reported a partial power loss. During the forced landing tahe right skid collapsed & the t/r severed the tail boom. During a subsequent eng test, the eng would produce no more than 20 PSI torque at 100% N2. The fuel control & fuel nozzle were found to…

## 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 ('4470728')
    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" = 352))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4470728&occurrence=352

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