# Fatal NTSB investigations: Kaman Aerospace K-1200

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 CEN26FA247](https://openairdocs.org/ntsb/CEN26FA247.md): Kaman Aerospace K-1200 · Silver Jack Reservoir, CO · Accident · 1 fatal · Class 3 · Field · Preliminary report · Jul 12, 2026 · N40HX · Substantial damage
  > On July 12, 2026, about 1705 mountain daylight time, a Kaman Aerospace Corporation K-1200 (K-MAX) helicopter, N40HX, was substantially damaged when it was involved in an accident at Silver Jack Reservoir, Colorado. The pilot was fatally injured. The…
- [NTSB WPR20LA283](https://openairdocs.org/ntsb/WPR20LA283.md): Kaman K 1200 · Pine Grove, OR · Accident · 1 fatal · Class 3 · Limited · Final report · Aug 25, 2020 · N314 · Substantial damage
  > An in-flight breakup resulting from contact of the left rotor system with the right rotor system after an in-flight failure of a servo flap from a left rotor blade.
- [NTSB WPR10FA295](https://openairdocs.org/ntsb/WPR10FA295.md): Kaman Aerospace K-1200 · Donnelly, ID · Accident · 1 fatal · Field investigation · Final report · Jun 16, 2010 · N134WC · Substantial damage
  > The collision of two counter-rotating main rotor blades for undetermined reasons, which resulted in a loss of control.
- [NTSB WPR09LA057](https://openairdocs.org/ntsb/WPR09LA057.md): Kaman K-1200 · Santa Clarita, CA · Accident · 1 fatal · Limited investigation · Final report · Dec 17, 2008 · N267KA · Substantial damage
  > The helicopter's encounter with a gusty crosswind condition during engine start that exceeded the helicopter's demonstrated wind envelope.
- [NTSB SEA06FA067](https://openairdocs.org/ntsb/SEA06FA067.md): Kaman K-1200 · Dayville, OR · Accident · 1 fatal · Field investigation · Final report · Mar 17, 2006 · N263KA · Substantial damage
  > The improper overhaul of the reduction gear box assembly and improper installation of the N1 seal and nut assembly lockcup by maintenance personnel, which resulted in failure of the reduction gear box and a total loss of engine power. A contributing factor…
- [NTSB SEA04LA082](https://openairdocs.org/ntsb/SEA04LA082.md): Kaman K-1200 · West Fork, OR · Accident · 1 fatal · Limited investigation · Final report · May 12, 2004 · N162KA · Substantial damage
  > The pilot's failure to maintain adequate clearance with trees during logging operations. Contributing factors were the trees, mountainous (steeply sloped) terrain, and the pilot's decision to conduct operations in this terrain with a 200 foot long line.
- [NTSB SEA03GA153](https://openairdocs.org/ntsb/SEA03GA153.md): Kaman K-1200 · Keller, WA · Accident · 1 fatal · Final report · Jul 26, 2003 · N314KA · Destroyed
  > Corrosion fatigue within the blade retention bolt bushing(s) of the main rotor blade grip resulting in fatigue, cracking and ultimate separation of the upper grip plate. The separation of the upper blade grip plate led to a dynamic imbalance within the rotor…

## 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."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('13027LS'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?fatal=1&model=13027LS

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