# NTSB investigations: Lycoming 0-540 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 CEN26LA242](https://openairdocs.org/ntsb/CEN26LA242.md): Piper PA-25-235 · Forest Lake, MN · Accident · No injuries · Class 3 · Limited · Preliminary report · Jul 4, 2026 · N386AB · Substantial damage
  > On July 4, 2026, about 0942 central daylight time, a Piper PA-25-235 airplane, N386AB, was substantially damaged when it was involved in an accident near Forest Lake, Minnesota. The pilot was not injured. The airplane was operated as a Title 14 Code of…
- [NTSB CEN26LA211](https://openairdocs.org/ntsb/CEN26LA211.md): Piper PA-28-235 · Montevideo, MN · Accident · Minor injuries · Class 4 · Limited · Final report · Jun 1, 2026 · N15291 · Substantial damage
  > A total loss of engine power on approach due to carburetor icing.
- [NTSB CEN26LA038](https://openairdocs.org/ntsb/CEN26LA038.md): Cessna R182 · Brainerd, MN · Accident · No injuries · Class 4 · Limited · Final report · Nov 5, 2025 · N9054C · Substantial damage
  > The pilot’s failure to extended to landing gear before landing.
- [NTSB CEN22LA404](https://openairdocs.org/ntsb/CEN22LA404.md): Robinson Helicopter R44 · Beardsley, MN · Accident · Minor injuries · Class 4 · Limited · Final report · Aug 30, 2022 · N7048C · Substantial damage
  > The pilot’s failure to maintain aircraft control during the approach to land that resulted in an excessive descent rate and impact with terrain.
- [NTSB CEN21LA461](https://openairdocs.org/ntsb/CEN21LA461.md): Piper PA-32-260 · Hancock, MN · Accident · Minor injuries · Class 4 · Limited · Final report · Sep 29, 2021 · N130GH · Substantial damage
  > A total loss of engine power as a result of fuel starvation. Contributing to the accident was the pilot’s failure to properly manage the fuel on board the airplane and his failure to perform an adequate preflight inspection.
- [NTSB CEN20LA374](https://openairdocs.org/ntsb/CEN20LA374.md): Piper PA28 · Walker, MN · Accident · 1 fatal · Class 3 · Limited · Final report · Sep 2, 2020 · N8957W · Substantial damage
  > The pilot’s impairment from the effects of an undiagnosed brain tumor.
- [NTSB CEN17FA361](https://openairdocs.org/ntsb/CEN17FA361.md): Cessna TR182 · Thief River Falls, MN · Accident · 3 fatal · Field investigation · Final report · Sep 23, 2017 · N4777T · Destroyed
  > The noninstrument-rated pilot's decision to depart into instrument meteorological conditions, and his subsequent loss of control due to spatial disorientation.
- [NTSB CEN09CA109](https://openairdocs.org/ntsb/CEN09CA109.md): Piper PA28 · Ely, MN · Accident · No injuries · Data collection · Final report · Dec 17, 2008 · N845D · Substantial damage
  > The pilot's failure to maintain directional control during landing. Contributing to the accident were the reduced left main landing gear wheel rotation for undetermined reasons and the snow-covered runway.
- [NTSB CHI08CA243](https://openairdocs.org/ntsb/CHI08CA243.md): Piper PA-25-235 · Cosmos, MN · Accident · Minor injuries · Data collection · Final report · Aug 11, 2008 · N7297Z · Substantial damage
  > The pilot's failure to maintain clearance from the guide wire while maneuvering on an aerial application flight. Contributing to the accident was the presence of the guide wire.
- [NTSB CHI05CA066](https://openairdocs.org/ntsb/CHI05CA066.md): Robinson R44 · Minneapolis, MN · Accident · No injuries · Data collection · Final report · Feb 5, 2005 · N7091C · Substantial damage
  > The pilot's inadequate compensation for the wind conditions and his failure to maintain control of the helicopter while maneuvering to center the helicopter on a cart. A factor associated with the accident was the wind gusts.
- [NTSB CHI03FA219](https://openairdocs.org/ntsb/CHI03FA219.md): Piper PA-28-235 · Jackson, MN · Accident · 1 fatal · Field investigation · Final report · Jul 21, 2003 · N33774 · Destroyed
  > The pilot's intentional flight into terrain as an act of suicide.
- [NTSB CHI00LA300](https://openairdocs.org/ntsb/CHI00LA300.md): Piper PA-23-250 · Sandstone, MN · Accident · No injuries · Limited investigation · Final report · Sep 15, 2000 · N4584P · Substantial damage
  > the pilot exceeding the proper touchdown point on the runway.
- [NTSB CHI98LA037](https://openairdocs.org/ntsb/CHI98LA037.md): Piper PA-32-260 · Lakeville, MN · Accident · No injuries · Limited investigation · Final report · Oct 31, 1997 · N3359W · Substantial damage
  > fuel starvation due a deteriorated grommet in an Adel clamp, and a loose mixture control cable.
- [NTSB CHI97LA052](https://openairdocs.org/ntsb/CHI97LA052.md): Piper PA-24-250 · Franklin, MN · Accident · No injuries · Limited investigation · Final report · Jan 13, 1997 · N6495P · Substantial damage
  > The pilot's inadequate inflight planning and his fuel mismanagement, which resulted in fuel exhaustion and the loss of engine power. A contributing factor with this accident was a frost blocked cockpit windshield.
- [NTSB CHI96LA245](https://openairdocs.org/ntsb/CHI96LA245.md): Piper PA-25-235 · Beltrami, MN · Accident · Minor injuries · Limited investigation · Final report · Jul 17, 1996 · N4997Y · Substantial damage
  > the pilot's inadequate preflight planning. Factors in the accident were the pilot's failure to jettison the load and the soft runway overrun area.
- [NTSB CHI96LA137](https://openairdocs.org/ntsb/CHI96LA137.md): Piper PA-32-260 · Aitkin, MN · Accident · No injuries · Limited investigation · Final report · Apr 22, 1996 · N4883S · Substantial damage
  > the pilot's improper planning/decision, which resulted in his failure (or inability) to adequately compensation for wind conditions. Factors relating to the accident were: the gusty crosswind condition and the snowbank.
- [NTSB CHI95LA245](https://openairdocs.org/ntsb/CHI95LA245.md): Piper PA-25-235 · Oklee, MN · Accident · No injuries · Limited investigation · Final report · Jul 28, 1995 · N7797Z · Destroyed
  > the pilot failed to maintain clearance with trees. Factors associated with the accident were the trees and the pilot's diverted attention.
- [NTSB CHI93LA087](https://openairdocs.org/ntsb/CHI93LA087.md): Piper PA-32 · Austin, MN · Accident · Minor injuries · Limited investigation · Final report · Feb 4, 1993 · N3658W · Substantial damage
  > The pilot's failure to maintain altitude. The pilot's continued flight into IMC, diverted attention and the environmental conditions were factors.
- [NTSB MKC90LA135](https://openairdocs.org/ntsb/MKC90LA135.md): Callair A-9 · Barrett, MN · Accident · No injuries · Limited investigation · Final report · Jun 22, 1990 · N9621Z · Substantial damage
  > Inadequate visual outlook and a delayed pull-up by the pilot in command.
- [NTSB CHI88DER04](https://openairdocs.org/ntsb/CHI88DER04.md): Piper PA-25 · Elbow Lake, MN · Accident · No injuries · Final report · Jul 24, 1988 · N6590Z · Substantial damage
  > The pilot was practicing low level flight in preparation for his certification under 14 CFR 137 when the aircraft experienced a collision with wires. The aircraft was substantially damaged during this collision and the subsequent collision with trees and the…
- [NTSB CHI87DER04](https://openairdocs.org/ntsb/CHI87DER04.md): Piper PA-32-260 · Pine Center, MN · Accident · Minor injuries · Final report · Apr 10, 1987 · N56721 · Substantial damage
  > After noticing a loss in oil pressure, the pilot initiated an emergency landing in a swamp. The aircraft impacted trees and received substantial damage. The pilot reported minor injuries. Subsequent investigation revealed that the oil sump contained several…
- [NTSB CHI86FER12](https://openairdocs.org/ntsb/CHI86FER12.md): Piper PA-25-235 · New Richland, MN · Accident · Minor injuries · Final report · Jul 6, 1986 · N9824P · Substantial damage
  > The aircraft performed a forced landing which resulted in substantial damage. Water was found in the fuel system. Water was also found in the underground fuel supply used to refuel the crop duster.
- [NTSB CHI85LA363](https://openairdocs.org/ntsb/CHI85LA363.md): Callair A-9 · Hollandale, MN · Accident · No injuries · Limited investigation · Final report · Aug 30, 1985 · N8273H · Substantial damage
  > During a maneuvering turn while crop dusting the pilot experienced a muffler failure and engine fire. He landed successfully and abandoned the aircraft. Subsequent investigation revealed that the bracket that holds the muffler/ exhaust pipe to the aircraft…
- [NTSB CHI83LA243](https://openairdocs.org/ntsb/CHI83LA243.md): Piper PA-25 · Roseau, MN · Accident · Minor injuries · Limited investigation · Final report · Jun 6, 1983 · N7221L · Substantial damage
  > During an aerial application flt, the acft collided with power lines during a pull-up from a swath run. The plt reported no preimpact malfunctions.
- [NTSB CHI82DA347](https://openairdocs.org/ntsb/CHI82DA347.md): Bell 47G-4A · Near Brooten, MN · Accident · No injuries · Final report · Aug 20, 1982 · N4090G · Substantial damage
  > The pilot had been engaged in a spraying operation for 2.5 hrs when he returned and landed on a flat bed type trailer to service the helicopter. After the hopper was serviced with 60 gal of herbicide, the pilot began his take off. He stated that just after…
- [NTSB CHI80DER58](https://openairdocs.org/ntsb/CHI80DER58.md): Piper PA-25 · Bingham Lake, MN · Accident · No injuries · Closed · Sep 5, 1980 · N9785P · Substantial damage
- [NTSB MKC79DER69](https://openairdocs.org/ntsb/MKC79DER69.md): Piper PA-32 · Minneapolis, MN · Accident · No injuries · Closed · Aug 18, 1979 · N3641W · Substantial damage
- [NTSB MKC79DER58](https://openairdocs.org/ntsb/MKC79DER58.md): Piper PA-25 · Warroad, MN · Accident · Minor injuries · Closed · Jul 29, 1979 · N7298Z · Substantial damage
- [NTSB MKC79DER55](https://openairdocs.org/ntsb/MKC79DER55.md): Piper PA-25 · Roseau, MN · Accident · No injuries · Closed · Jul 17, 1979 · N9750P · Substantial damage
- [NTSB MKC79DER03](https://openairdocs.org/ntsb/MKC79DER03.md): Cessna 182RG · Wolverton, MN · Accident · No injuries · Closed · Oct 21, 1978 · N3277C · Substantial damage
- [NTSB MKC79DER57](https://openairdocs.org/ntsb/MKC79DER57-202541.md): Piper PA-25 · Mahnomen, MN · Accident · No injuries · Closed · Jun 16, 1978 · N7739Z · Substantial damage
- [NTSB MKC78DER47](https://openairdocs.org/ntsb/MKC78DER47.md): Piper PA-25 · Warren, MN · Accident · Minor injuries · Closed · May 27, 1978 · N6816Z · Substantial damage
- [NTSB MKC77DER84](https://openairdocs.org/ntsb/MKC77DER84.md): Piper PA-28 · Starbuck, MN · Accident · No injuries · Closed · Sep 20, 1977 · N8671W · Substantial damage
- [NTSB MKC77FER71](https://openairdocs.org/ntsb/MKC77FER71.md): Piper PA-25 · Springfield, MN · Accident · No injuries · Closed · Jul 30, 1977 · N7634Z · Substantial damage
- [NTSB MKC76IK011](https://openairdocs.org/ntsb/MKC76IK011.md): Piper PA-24 · Houston, MN · Incident · Minor injuries · Closed · Jul 28, 1975 · N7179P · Minor damage
- [NTSB MKC76FER09](https://openairdocs.org/ntsb/MKC76FER09.md): Piper PA-25 · Olivia, MN · Accident · No injuries · Closed · Jul 18, 1975 · N7630Z · Substantial damage
- [NTSB MKC75FER41](https://openairdocs.org/ntsb/MKC75FER41.md): Piper PA-24 · Rochester, MN · Accident · No injuries · Closed · Jan 15, 1975 · N7179P · Substantial damage
- [NTSB MKC75DER06](https://openairdocs.org/ntsb/MKC75DER06.md): Piper PA-25 · Moorhead, MN · Accident · No injuries · Closed · Jul 27, 1974 · N8600L · Substantial damage
- [NTSB MKC74FER59](https://openairdocs.org/ntsb/MKC74FER59.md): Callair A-9 · Stephen, MN · Accident · Serious injuries · Closed · Jun 20, 1974 · N7238V · Substantial damage
- [NTSB MKC74DER06](https://openairdocs.org/ntsb/MKC74DER06.md): Callair A-9 · Stephen, MN · Accident · Minor injuries · Closed · Aug 20, 1973 · N8414V · Substantial damage
- [NTSB MKC73DER49](https://openairdocs.org/ntsb/MKC73DER49.md): Piper PA-32 · Starbuck, MN · Accident · No injuries · Closed · Apr 7, 1973 · N3364W · Substantial damage
- [NTSB MKC73FER45](https://openairdocs.org/ntsb/MKC73FER45.md): Piper PA-24 · Grand Rapids, MN · Accident · No injuries · Closed · Mar 25, 1973 · N5671P · Substantial damage
- [NTSB MKC73DER13](https://openairdocs.org/ntsb/MKC73DER13.md): Piper PA-25 · Mapleton, MN · Accident · No injuries · Closed · Aug 19, 1972 · N7217Z · Substantial damage
- [NTSB MKC71FDD13](https://openairdocs.org/ntsb/MKC71FDD13.md): Piper PA-25 · Humboldt, MN · Accident · No injuries · Closed · Sep 18, 1970 · N7767Z · Substantial damage
- [NTSB MKC70D0025](https://openairdocs.org/ntsb/MKC70D0025.md): Piper PA-24 · Dora Lake, MN · Accident · No injuries · Closed · Jun 22, 1969 · N5186P · Substantial damage
- [NTSB MKC67D0542](https://openairdocs.org/ntsb/MKC67D0542.md): Piper PA-32 · Albert Lea, MN · Accident · No injuries · Closed · Mar 22, 1967 · N3805W · Substantial damage
- [NTSB MKC66F0121](https://openairdocs.org/ntsb/MKC66F0121.md): Piper PA-24 · Dodge Center, MN · Accident · No injuries · Closed · Apr 22, 1965 · N5186P · Substantial damage
- [NTSB UNK65X0208](https://openairdocs.org/ntsb/UNK65X0208.md): Piper PA28 · Duluth, MN · Accident · No injuries · Closed · Oct 9, 1964 · N8769W · Substantial damage
- [NTSB UNK64X0624](https://openairdocs.org/ntsb/UNK64X0624.md): Piper PA23 · Alexandria, MN · Accident · No injuries · Closed · Feb 20, 1964 · N4743P · 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 ('41532'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41532&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.