# Final NTSB investigations: Alliedsign T5317A-1

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 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 GAA17CA146](https://openairdocs.org/ntsb/GAA17CA146.md): Kaman Aerospace K 1200 · Julian, CA · Accident · No injuries · Data collection · Final report · Mar 13, 2017 · N675TH · Substantial damage
  > The pilot’s failure to conduct a thru-flight walkaround inspection, which resulted in the engine cowling remaining open and subsequently separating from the helicopter and striking the main rotor blades and vertical stabilizer during departure.
- [NTSB SEA04TA158](https://openairdocs.org/ntsb/SEA04TA158.md): Bell 205A1 · Leavenworth, WA · Accident · 1 fatal · Final report · Aug 11, 2004 · N205XP · Destroyed
  > The pilot's failure to maintain clearance from the snag while hovering out of ground effect during an external load operation. Factors were the smoke jumper's misjudgment of the tree heights in the area, which resulted in the use of too short a long line, and…
- [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.

## 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('02501'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=02501&status=final

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