# NTSB investigations: Pratt & Whitney R-985 series, MN

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 CEN25LA286](https://openairdocs.org/ntsb/CEN25LA286.md): Weatherly 620B · Rushmore, MN · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 23, 2025 · N2032J · Substantial damage
  > The pilot’s failure to maintain clearance from a tree during low-level maneuvering.
- [NTSB CEN09FA518](https://openairdocs.org/ntsb/CEN09FA518.md): Beech E18S · Eden Prairie, MN · Accident · 2 fatal · Field investigation · Final report · Aug 12, 2009 · N3038C · Substantial damage
  > The pilot’s lack of experience flying the accident make and model of airplane, which led to a loss of control while maneuvering to return to the airport. Contributing to the accident was a partial loss of engine power for undetermined reasons.
- [NTSB CHI06LA147](https://openairdocs.org/ntsb/CHI06LA147.md): Allied Ag Cat Productions G-164A · Gonvick, MN · Accident · Minor injuries · Limited investigation · Final report · Jun 2, 2006 · N600T · Substantial damage
  > The aborted takeoff not performed by the pilot. A contributing factor is the reported loss of takeoff performance.
- [NTSB CHI04CA244](https://openairdocs.org/ntsb/CHI04CA244.md): Beech BE-18 · Lakeville, MN · Accident · Minor injuries · Data collection · Final report · Aug 29, 2004 · N5180V · Substantial damage
  > The pilot's inadequate flare, the improper recovery from a bounced landing, the loss of directional control, and inadequate compensation for the crosswind. A factor was the crosswind.
- [NTSB CHI04CA163](https://openairdocs.org/ntsb/CHI04CA163.md): Grumman G-164A · Hutchinson, MN · Accident · No injuries · Data collection · Final report · Jun 23, 2004 · N5339 · Substantial damage
  > The pilot's failure to maintain airspeed during the low altitude turn after takeoff. A factor to the accident was the low altitude and the swampy terrain condition.
- [NTSB CHI99LA254](https://openairdocs.org/ntsb/CHI99LA254.md): Beech G18S · Minneapolis, MN · Accident · No injuries · Limited investigation · Final report · Jul 23, 1999 · N621KE · Substantial damage
  > the premature gear retraction and proper runway alignment not maintained during takeoff by the pilot. An additional cause was the proper descent rate not maintained by the pilot. Contributing factors were the carburetor icing conditions
- [NTSB CHI98LA003](https://openairdocs.org/ntsb/CHI98LA003.md): Beech E18S · Lake Elmo, MN · Accident · No injuries · Limited investigation · Final report · Oct 2, 1997 · N916TM · Substantial damage
  > the pilot's failure identify the unsafe condition (vortex turbulence) which existed due to departing airplane and his subsequent inability to control the airplane once encountering the turbulence.
- [NTSB CHI97LA219](https://openairdocs.org/ntsb/CHI97LA219.md): Weatherly 201C · Stephen, MN · Accident · No injuries · Limited investigation · Final report · Jul 18, 1997 · N9054W · Substantial damage
  > the pilot's exceeding the design stress limits of the aircraft. A factor was the crosswind.
- [NTSB CHI96LA186](https://openairdocs.org/ntsb/CHI96LA186.md): Grumman-Schweizer G-164B · Crookston, MN · Accident · No injuries · Limited investigation · Final report · May 25, 1996 · N48518 · Substantial damage
  > catastrophic engine failure.
- [NTSB CHI95LA272](https://openairdocs.org/ntsb/CHI95LA272.md): Grumman G-164 · Wadena, MN · Accident · Minor injuries · Limited investigation · Final report · Aug 13, 1995 · N48611 · Substantial damage
  > the pilot's inattentiveness during the reversal turn, the pilot not maintaining control of the airplane, and the stall/mush encountered by the pilot.
- [NTSB CHI94LA320](https://openairdocs.org/ntsb/CHI94LA320.md): Weatherly 201C · Stephen, MN · Accident · Serious injuries · Limited investigation · Final report · Sep 11, 1994 · N9054W · Substantial damage
  > improper rigging of the parking brake control cable resulting in inadvertent application of the left wheel brake.
- [NTSB CHI93LA303](https://openairdocs.org/ntsb/CHI93LA303.md): Schweizer G167B · Borup, MN · Accident · No injuries · Limited investigation · Final report · Jul 27, 1993 · N6637Q · Substantial damage
  > the loss of engine power due to a cracked cylinder head.
- [NTSB CHI93LA254](https://openairdocs.org/ntsb/CHI93LA254.md): Grumman G164B · Eldred, MN · Accident · No injuries · Limited investigation · Final report · Jul 13, 1993 · N48518 · Substantial damage
  > the pilot's failure to maintain directional control during the takeoff roll.
- [NTSB CHI93FA180](https://openairdocs.org/ntsb/CHI93FA180.md): Beech C-18S · North Branch, MN · Accident · 1 fatal · Field investigation · Final report · May 22, 1993 · N67E · Destroyed
  > excessive use of brakes by the pilot-in-command.
- [NTSB CHI92LA235](https://openairdocs.org/ntsb/CHI92LA235.md): Boeing A75N1 · St. Paul, MN · Accident · No injuries · Limited investigation · Final report · Aug 8, 1992 · N55982 · Substantial damage
  > The pilot's inattentiveness and improper use of the airplanes brakes. A factor which contributed to this accident was the incorrect brake system installed on the airplane.
- [NTSB CHI91LA004](https://openairdocs.org/ntsb/CHI91LA004.md): Beech E-18 · Minneapolis, MN · Accident · No injuries · Limited investigation · Final report · Oct 5, 1990 · N703M · Substantial damage
  > Failure of the pilot-in-command to maintain directional control of the aircraft during landing roll.
- [NTSB CHI88LA136](https://openairdocs.org/ntsb/CHI88LA136.md): de Havilland DHC2-MK I · Warroad, MN · Accident · Minor injuries · Limited investigation · Final report · Jun 20, 1988 · N49771 · Substantial damage
  > The pilot decided to land in the lake approximately 1000 yds from the sea plane base and was attempting a step-taxi back to the base when the acft struck a sand bar. The pilot stated that he was taxiing near tall grass where he thought the water was deep…
- [NTSB CHI86LA054](https://openairdocs.org/ntsb/CHI86LA054.md): Beech G18S · Minneapolis, MN · Accident · No injuries · Limited investigation · Final report · Dec 29, 1985 · N100VE · Substantial damage
  > The aircraft collided with a snowbank while goundlooping after landing at the completion of a cargo flight from chicago ill. The winds were calm. The pilot stated that he needed to take timely and sufficient action.
- [NTSB CHI84LA357](https://openairdocs.org/ntsb/CHI84LA357.md): Grumman G-164A · Rice, MN · Accident · No injuries · Limited investigation · Final report · Aug 18, 1984 · N600T · Substantial damage
  > Pilot stated that during the takeoff roll the acft suddenly began to pull to the left. The pilot reduced power and applied right brake and rudder to correct but the left wing struck corn stalks. Examination of the acft after the accident revealed the left…
- [NTSB CHI83LER03](https://openairdocs.org/ntsb/CHI83LER03.md): Boeing A75N1 · Sabin, MN · Accident · Serious injuries · Final report · Aug 14, 1983 · N51125 · Substantial damage
  > Acft collided with power lines.
- [NTSB CHI83LA288](https://openairdocs.org/ntsb/CHI83LA288.md): Grumman G-164A · Morris, MN · Accident · No injuries · Limited investigation · Final report · Jul 1, 1983 · N8379 · Substantial damage
  > The plt reported that while he was waiting for the flagman, circling the field to be sprayed, & talking to the flagman, the acft began to sink & struck trees. The load was dumped, but the plane continued to sink to the ground. During the landing, the acft…
- [NTSB MKC80DER05](https://openairdocs.org/ntsb/MKC80DER05.md): Grumman G-164 · Campbell, MN · Accident · No injuries · Closed · Aug 15, 1979 · N10214 · Substantial damage
- [NTSB MKC76FER90](https://openairdocs.org/ntsb/MKC76FER90.md): Weatherly 201C · Hollandale, MN · Accident · No injuries · Closed · Aug 22, 1976 · N1244W · Substantial damage
- [NTSB MKC71AK034](https://openairdocs.org/ntsb/MKC71AK034.md): Beech C-45H · Minneapolis, MN · Accident · No injuries · Closed · Dec 12, 1970 · N5043K · Substantial damage
- [NTSB MKC71FDM26](https://openairdocs.org/ntsb/MKC71FDM26.md): Beech C-45H · Rochester, MN · Accident · No injuries · Closed · Sep 19, 1970 · N5043K · Substantial damage
- [NTSB MKC69A0028](https://openairdocs.org/ntsb/MKC69A0028.md): Beech D18S · Alexandria, MN · Accident · No injuries · Closed · Nov 4, 1968 · N203W · Substantial damage
- [NTSB MKC69D0047](https://openairdocs.org/ntsb/MKC69D0047.md): Boeing A75 · Waseca, MN · Accident · No injuries · Closed · Jun 27, 1968 · N49997 · Substantial damage

## 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."eventStateOrRegion" = 'MN' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52008'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52008&state=MN

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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.