# NTSB investigations: Kaman HH-43F

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 SEA06LA162](https://openairdocs.org/ntsb/SEA06LA162.md): Kaman HH-43F · Metaline Falls, WA · Accident · 1 fatal · Limited investigation · Final report · Aug 18, 2006 · N559D · Destroyed
  > The failure of the left-hand cross-shaft input internal spline while the helicopter was in a hover, which resulted in the loss of gear box timing, in-flight blade contact and separation, and the subsequent loss of control and impact with a log deck.
- [NTSB LAX99FA317](https://openairdocs.org/ntsb/LAX99FA317.md): Kaman HH-43F · Phoenix, AZ · Accident · 2 fatal · Field investigation · Final report · Sep 25, 1999 · N100PL · Destroyed
  > Failure of the horizontal stabilizer left outboard forward attach point because of a previously existing crack that resulted from inadequate maintenance inspection by the operator. A factor was the use of automotive parts.
- [NTSB LAX95LA075](https://openairdocs.org/ntsb/LAX95LA075.md): Kaman HH43 · Glendale, AZ · Accident · No injuries · Limited investigation · Final report · Jan 10, 1995 · N321WN · Substantial damage
  > The pilot's failure to maintain an adequate visual lookout to avoid a collision with a tree during an aerial application swath run.
- [NTSB SEA93LA105](https://openairdocs.org/ntsb/SEA93LA105.md): Kaman HH-43F · Anatone, WA · Accident · 1 fatal · Limited investigation · Final report · May 12, 1993 · N846D · Destroyed
  > Fatigue failure of the rotor transmission drive system, resulting from the improper certification/approval of the aircraft modification by the federal aviation administration.
- [NTSB ATL93LA033](https://openairdocs.org/ntsb/ATL93LA033.md): Kaman HH43F · Columbia, SC · Accident · Minor injuries · Limited investigation · Final report · Dec 11, 1992 · N100PL · Substantial damage
  > The deterioration of the engine fuel shutoff solenoid valve which failed in the closed position.
- [NTSB ATL92LA075](https://openairdocs.org/ntsb/ATL92LA075.md): Kaman HH-43F · Manteo, NC · Accident · No injuries · Limited investigation · Final report · Apr 9, 1992 · N100PL · Substantial damage
  > The pilot's improper use of the flight controls, in that he inadvertently activated the tail rotor pedals. Factors in the accident were the cross wind, and the slope of the landing area.
- [NTSB LAX91LA377](https://openairdocs.org/ntsb/LAX91LA377.md): Kaman HH43 B/F · Coleville, CA · Accident · 1 fatal · Limited investigation · Final report · Aug 31, 1991 · N53RH · Destroyed
  > The failure of the pilot to adequately calculate the helicopter performance. Contributing to the accident was a delay in jettisoning the external load; the pilot's overconfidence in his abilities; and exceeding of the helicopter's hover ability during high…
- [NTSB MIA83FA183](https://openairdocs.org/ntsb/MIA83FA183.md): Kaman H-43B · Near Clermont, FL · Accident · Serious injuries · Field investigation · Final report · Jul 14, 1983 · N57996 · Destroyed
  > The helicopter crashed in an uncontrolled descent from a hover. A witness stated that the helicopter was slowing descending to position a 150 ft line for the ground crew when he observed something separate and the helicopter came down in a vertical descent.…

## 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 ('4800708'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4800708

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