# NTSB investigations: Bell UH-1B, FL

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 MIA02LA133](https://openairdocs.org/ntsb/MIA02LA133.md): Bell UH-1B · Lorida, FL · Accident · Serious injuries · Limited investigation · Final report · Jul 16, 2002 · N91281 · Substantial damage
  > The pilot's continued operation with known engine anomalies resulting in loss of engine power due to failure of the engine fuel control pump drive clutch assembly due to wear and collision with the terrain during the resultant descent.
- [NTSB MIA97LA099](https://openairdocs.org/ntsb/MIA97LA099.md): Bell UH-1B · Labelle, FL · Accident · Minor injuries · Limited investigation · Final report · Mar 11, 1997 · N70696 · Destroyed
  > Company maintenance personnel's failure to properly evaluate a main rotor system problem resulting in main rotor straps with multiple laminates separated due to fatigue cracking being allowed to continue in service until failure and separation of a main rotor…
- [NTSB MIA96LA166](https://openairdocs.org/ntsb/MIA96LA166.md): Bell UH-1B · Lorida, FL · Accident · Minor injuries · Limited investigation · Final report · Jun 28, 1996 · N9846F · Substantial damage
  > failure of company maintenance personnel to properly torque the tail rotor 90 degree gear box mounting bolts during installation, which resulted in failure of the mounting studs due to bending fatigue and subsequent separation of the gearbox.
- [NTSB MIA91LA113](https://openairdocs.org/ntsb/MIA91LA113.md): Bell UH-1B · Vero Beach, FL · Accident · Minor injuries · Limited investigation · Final report · Mar 12, 1991 · N9687R · Substantial damage
  > Improper maintenance adjustment by company maintenance personnel resulting in overtorque of a tailboom attach bolt which allowed the tailboom to shift. This disengaged the tail rotor drive shaft at a coupling resulting in the loss of tail rotor drive.
- [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…

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

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

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.