# NTSB investigations: Bell UH-1B: Loss of engine power(total) - 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 LAX04LA015](https://openairdocs.org/ntsb/LAX04LA015.md): Bell UH-1B · Durham, CA · Accident · No injuries · Limited investigation · Final report · Oct 16, 2003 · N234SJ · Substantial damage
  > Separation of the power turbine shaft retaining bolt resulting in extensive power turbine area damage and a loss of shaft output power.
- [NTSB ATL94LA180](https://openairdocs.org/ntsb/ATL94LA180.md): Bell UH-1B · Ozark, AL · Accident · Minor injuries · Limited investigation · Final report · Sep 29, 1994 · N41870 · Substantial damage
  > The failure of the engines' main bearings because of a lack of lubrication. A factor was the heavily wooded terrain.
- [NTSB ATL87LA121](https://openairdocs.org/ntsb/ATL87LA121.md): Bell UH-1B · Bay Minette, AL · Accident · No injuries · Limited investigation · Final report · Apr 21, 1987 · N88987 · Destroyed
  > During a logging operation, the helicopter experienced a complete engine failure shortly after attempting a pickup. The pilot entered an autorotative glide. The helicopter impacted the water and sank. The wreckage examination disclosed that the compressor…
- [NTSB MIA86LA138](https://openairdocs.org/ntsb/MIA86LA138.md): Bell UH-1B · North Port, FL · Accident · No injuries · Limited investigation · Final report · Apr 14, 1986 · N4242T · Substantial damage
  > The flt experienced an eng failure at an alt of aprx 8 ft AGL shortly after takeoff and the helicopter sustained substantial damage when a hard landing was made. Post accident inspection of the eng revealed the pwr turbine wheel experienced a loss of two…
- [NTSB SEA85FA134](https://openairdocs.org/ntsb/SEA85FA134.md): Bell UH-1B · Juneau, AK · Accident · 1 fatal · Field investigation · Final report · Jun 11, 1985 · N99676 · Destroyed
  > While engaged in a log slinging operation over mountainous, densely forested terrain the rotor craft suffered a total power loss forcing the pilot to execute an autorotative landing into high conifer trees. Disassembly of the engine revealed evidence that the…

## 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 ('1181410')
    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" = 351))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1181410&occurrence=351

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