# NTSB investigations: Pratt & Whitney PT6A series: Loss of control - on ground/water

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 SEA07CA244](https://openairdocs.org/ntsb/SEA07CA244.md): Air Tractor AT-502B · Salome, AZ · Accident · No injuries · Data collection · Final report · Aug 30, 2007 · N8521Z · Substantial damage
  > The pilot's inadequate compensation for the tailwind condition and failure to maintain directional control during the takeoff roll/run, which resulted in a ground loop.
- [NTSB CHI07LA246](https://openairdocs.org/ntsb/CHI07LA246.md): Air Tractor AT-502B · Hampton, IA · Accident · No injuries · Limited investigation · Final report · Aug 1, 2007 · N50877 · Substantial damage
  > The pilot's failure to maintain directional control during landing. Contributing to the accident was a ditch.
- [NTSB DEN07LA030](https://openairdocs.org/ntsb/DEN07LA030.md): Piper PA-46-500TP · Steamboat Springs, CO · Accident · No injuries · Limited investigation · Final report · Nov 30, 2006 · N804JH · Substantial damage
  > The inadequate design of the engine mount, which caused an uncommanded left turn, loss of directional control, and impact with snow-covered terrain. Contributing to the accident was the low nose gear tire pressure.
- [NTSB LAX06CA142](https://openairdocs.org/ntsb/LAX06CA142.md): Air Tractor 502A · Stanfield, AZ · Accident · No injuries · Data collection · Final report · Apr 12, 2006 · N1539X · Substantial damage
  > the pilot's inadequate compensation for the wind conditions and failure to maintain directional control during the landing roll.
- [NTSB ANC06CA012](https://openairdocs.org/ntsb/ANC06CA012.md): Cessna 208 · Brevig Mission, AK · Accident · No injuries · Data collection · Final report · Dec 19, 2005 · N303GV · Substantial damage
  > The pilot's inadequate compensation for crosswind conditions, which resulted in the left wing striking the ground while taxiing. A factor in the accident was a crosswind.
- [NTSB ANC06CA011](https://openairdocs.org/ntsb/ANC06CA011.md): Cessna 208B · Newtok, AK · Accident · No injuries · Data collection · Final report · Dec 13, 2005 · N454SF · Substantial damage
  > The pilot's inadequate compensation for gusting crosswind conditions, which resulted in the airplane exiting the runway, encountering snow, and the nose gear collapsing. Factors associated with the accident were the gusting wind and the icy runway.
- [NTSB FTW04CA139](https://openairdocs.org/ntsb/FTW04CA139.md): Air Tractor AT-402 · Beedeville, AR · Accident · No injuries · Data collection · Final report · May 24, 2004 · N45553 · Substantial damage
  > The pilot's failure to maintain directional control of the airplane during landing roll-out. Contributing factors were the crosswind and condition of the the runway.
- [NTSB ANC04LA032](https://openairdocs.org/ntsb/ANC04LA032.md): Cessna 208B · Toksook Bay, AK · Accident · No injuries · Limited investigation · Final report · Feb 10, 2004 · N1276P · Substantial damage
  > The pilot's inadequate planning and decision to initiate a takeoff into a crosswind that exceeded the airplane's demonstrated crosswind component, which resulted in a loss of directional control during the takeoff roll, and subsequent collision with terrain…
- [NTSB LAX02LA147](https://openairdocs.org/ntsb/LAX02LA147.md): Air Tractor AT-802A · Kingman, AZ · Accident · No injuries · Limited investigation · Final report · May 2, 2002 · N90802 · Substantial damage
  > The failure of the pilot to maintain directional control during landing.
- [NTSB NYC02LA069](https://openairdocs.org/ntsb/NYC02LA069.md): Piper P46T · Philadelphia, PA · Accident · No injuries · Limited investigation · Final report · Mar 8, 2002 · N117NU · Substantial damage
  > The pilot's improper recovery from a bounced landing. A factor was the pilot's failure to flare during initial touchdown.
- [NTSB SEA01LA139](https://openairdocs.org/ntsb/SEA01LA139.md): Pilatus PC-6/B2-H4 · Great Falls, MT · Accident · No injuries · Limited investigation · Final report · Jul 21, 2001 · N2TS · Substantial damage
  > Pilot's failure to maintain directional control of the aircraft while landing.
- [NTSB CHI00FA071](https://openairdocs.org/ntsb/CHI00FA071.md): Beech 1900D · Escanaba, MI · Accident · No injuries · Field investigation · Final report · Feb 15, 2000 · N81SK · Substantial damage
  > the failure of the flightcrew to maintain directional control due to unsafe/hazardous conditions on the runway that was not relayed to them. Factors were the uneven snow covered runway and the snowbank.
- [NTSB CHI98LA243](https://openairdocs.org/ntsb/CHI98LA243.md): Air Tractor AT-502 · Minto, ND · Accident · Minor injuries · Limited investigation · Final report · Jul 9, 1998 · N9185C · Substantial damage
  > the pilot's selection of unsuitable terrain for takeoff. Factors were wet and soft runway conditions, and a ditch and the end of the overrun area.
- [NTSB LAX97LA250](https://openairdocs.org/ntsb/LAX97LA250.md): de Havilland DHC-6-300 · Elko, NV · Accident · No injuries · Limited investigation · Final report · Jul 21, 1997 · N776BF · Substantial damage
  > The failure of maintenance personnel to correctly diagnose and correct a reoccurring nose gear steering problem, and the improperly tensioned nose wheel steering actuator cables which provided the pilot with an erroneous cockpit indication that the nose gear…
- [NTSB LAX96LA328](https://openairdocs.org/ntsb/LAX96LA328.md): Cessna 425 · Auburn, CA · Accident · No injuries · Limited investigation · Final report · Sep 5, 1996 · N425WB · Substantial damage
  > failure of the right brake system (master cylinder O-ring seal). Factors relating to the accident were: the narrow runway, and the presence of a ditch adjacent to the runway.
- [NTSB MIA95LA173](https://openairdocs.org/ntsb/MIA95LA173.md): Air Tractor AT-502 · Belzoni, MS · Accident · No injuries · Limited investigation · Final report · Jul 3, 1995 · N91955 · Substantial damage
  > Inadequate compensation for wind conditions by the pilot. The gusty crosswind was a factor.
- [NTSB MKC90LA023](https://openairdocs.org/ntsb/MKC90LA023.md): Air Tractor AT-502 · Heafer, AR · Accident · Minor injuries · Limited investigation · Final report · Oct 13, 1989 · N1012Z · Substantial damage
  > The intentional swerve by the pilot during the takeoff roll. Contributing to the accident was the rough and soft terrain conditions.
- [NTSB FTW82DA301](https://openairdocs.org/ntsb/FTW82DA301.md): Beech B99A · Abilene, TX · Accident · No injuries · Final report · Jul 28, 1982 · N326CA · Substantial damage
  > The pilot was in the left seat and was getting a check ride from the chief pilot who was in the right seat. After making a series of touch-and-go landings, the aircraft pulled slightly to the left during a takeoff. A full pattern was then flown to runway 17R…

## 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 ('52032', '52034')
    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" = 260))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52032&occurrence=260

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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.