# NTSB investigations: Pratt & Whitney Canada PT6A-60A: In flight collision with object

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 CHI05LA130](https://openairdocs.org/ntsb/CHI05LA130.md): Pilatus PC-6 · Sturtevant, WI · Accident · Minor injuries · Limited investigation · Final report · May 26, 2005 · N346F · Substantial damage
  > Failure of the jump plane pilot to maintain clearance from the parachutist descent area/drop zone until assured that all jumpers had landed, and the parachutist's failure to maintain an adequate visual lookout for the jump plane during all phases of the jump.…
- [NTSB CHI03LA171](https://openairdocs.org/ntsb/CHI03LA171.md): Ayres S2R-T34 · Marked Tree, AR · Accident · Serious injuries · Limited investigation · Final report · Jun 19, 2003 · N4004U · Substantial damage
  > The pilot's failure to maintain clearance with the wire. Contributing factors were the low altitude flight/maneuver and the static wire.
- [NTSB FTW95LA347](https://openairdocs.org/ntsb/FTW95LA347.md): Ayres S2R-T34 · Lake City, AR · Accident · No injuries · Limited investigation · Final report · Aug 11, 1995 · N3095W · Substantial damage
  > The pilot's failure to maintain clearance with the transmission wires.
- [NTSB DEN93LA093](https://openairdocs.org/ntsb/DEN93LA093.md): Air Tractor AT-502 · Brookland, AR · Accident · No injuries · Limited investigation · Final report · Jul 30, 1993 · N7319V · Substantial damage
  > The pilot's failure to maintain adequate object clearance.
- [NTSB MIA91LA196](https://openairdocs.org/ntsb/MIA91LA196.md): Air Tractor AT-502 · Cleveland, MS · Accident · No injuries · Limited investigation · Final report · Aug 10, 1991 · N45192 · Substantial damage
  > The pilot's decision to continue the flight with reduced visual lookout due to a dirty foggy windshield.
- [NTSB FTW91DPG05](https://openairdocs.org/ntsb/FTW91DPG05.md): Ayres S2R-T34 · Wheatley, AR · Accident · 1 fatal · Final report · May 2, 1991 · N4015Z · Minor damage
  > The failure of the flagman to follow established procedures.
- [NTSB ATL89FA142](https://openairdocs.org/ntsb/ATL89FA142.md): Embraer EMB-110-P1 · Mt. Pleasant, TN · Accident · 1 fatal · Field investigation · Final report · May 6, 1989 · N95PB · Destroyed
  > Pilot attempted to make a VFR landing in instrument conditions that were below minimums for the published instrument approach and collided with trees and the ground after allowing the airplane to descend below the proper altitude.
- [NTSB LAX88DVA14](https://openairdocs.org/ntsb/LAX88DVA14.md): Ayres S2R-T34 · Five Points, CA · Accident · Minor injuries · Final report · Sep 2, 1988 · N4009M · Substantial damage
  > Plt was engaged in aerial application and had been overflying power lines. On last pass, plt elected to fly beneath power lines, struck bracing wire between poles with vertical fin, disabling elevator. The acft crashed nose down in a field in an uncontrolled…
- [NTSB LAX88DVA10](https://openairdocs.org/ntsb/LAX88DVA10.md): Ayres S2R-T34 · Huron, CA · Accident · No injuries · Final report · Aug 14, 1988 · N40071 · Substantial damage
  > During an aerial application flight at night, the airplane's vertical stabilizer collided with a transmission wire. Subsequently, the vertical stabilizer & rudder were dislocated & directional control was lost. Realizing he had lost directional control, 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.engine_model_code IN ('52043', '51999')
    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" = 220))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52043&occurrence=220

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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.