# NTSB investigations: Pratt & Whitney R-985 series: Collision during takeoff/land

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 ANC25LA074](https://openairdocs.org/ntsb/ANC25LA074.md): Dehavilland Beaver DHC-2 MK.1 · Nelson Lagoon, AK · Accident · No injuries · Class 4 · Limited · Final report · Jul 11, 2025 · N109KS · Substantial damage
  > The pilot’s failure to maintain clearance from a creek bank while maneuvering to land.
- [NTSB ANC22LA078](https://openairdocs.org/ntsb/ANC22LA078.md): Dehavilland DHC-2 · Egegik, AK · Accident · Minor injuries · Class 4 · Limited · Final report · Sep 19, 2022 · N24BR · Substantial damage
  > The pilot’s loss of control during takeoff in gusting wind conditions.
- [NTSB CEN21LA333](https://openairdocs.org/ntsb/CEN21LA333.md): Boeing E75 · Baraboo, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 23, 2021 · N51CF · Substantial damage
  > The pilot’s failure to maintain clearance from the fence while on final approach.
- [NTSB ERA17CA251](https://openairdocs.org/ntsb/ERA17CA251.md): Weatherly 620 · Pemberton Twp, NJ · Accident · No injuries · Data collection · Final report · Jul 19, 2017 · N9270W · Substantial damage
  > An in-flight collision with a bird during takeoff, which resulted in a partial loss of engine power and subsequent collision with trees and terrain.
- [NTSB ANC17LA032](https://openairdocs.org/ntsb/ANC17LA032.md): Dehavilland DHC-2 · Ketchikan, AK · Accident · Minor injuries · Class 2 · Limited · Final report · Jun 18, 2017 · N930TG · Substantial damage
  > The pilot's misjudgment of the takeoff distance needed to depart the lake, and his subsequent failure to maintain clearance from the water during a turn to avoid terrain, which resulted in impact with water.
- [NTSB ANC11LA007](https://openairdocs.org/ntsb/ANC11LA007.md): Beech E18S-9700 · New Stuyahok, AK · Accident · No injuries · Limited investigation · Final report · Jan 3, 2011 · N9001 · Substantial damage
  > The pilot's misjudgment of the runway surface condition, resulting in an aborted landing and collision with rising terrain during the ensuing takeoff attempt.
- [NTSB CEN10CA568](https://openairdocs.org/ntsb/CEN10CA568.md): Beech D17S · Fort Worth, TX · Accident · No injuries · Data collection · Final report · Sep 21, 2010 · N17GB · Substantial damage
  > The pilot’s improper fuel management, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB ANC10CA054](https://openairdocs.org/ntsb/ANC10CA054.md): Dehavilland DHC-2 MK. I(L20A) · Igiugig, AK · Accident · No injuries · Data collection · Final report · Jun 28, 2010 · N9RW · Substantial damage
  > The pilot's decision to use only a portion of the available takeoff area, which resulted in a collision with terrain during takeoff.
- [NTSB WPR09CA393](https://openairdocs.org/ntsb/WPR09CA393.md): Grumman Acft ENG Cor-Schweizer G-164B · Westley, CA · Accident · No injuries · Data collection · Final report · Aug 13, 2009 · N6697Q · Substantial damage
  > The pilot’s inadequate preflight planning and preparation, and his decision to operate the airplane well in excess of its maximum gross weight.
- [NTSB ANC09LA072](https://openairdocs.org/ntsb/ANC09LA072.md): Dehavilland Beaver DHC-2 · Iliamna, AK · Accident · No injuries · Limited investigation · Final report · Jul 22, 2009 · N68088 · Substantial damage
  > The pilot's selection of an unsuitable landing/takeoff area with an unfavorable wind.

## 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 ('52008')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '490'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/490/cases?engine=52008

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