# NTSB investigations: Lycoming 0-540 series, WY

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 WPR26LA075](https://openairdocs.org/ntsb/WPR26LA075.md): Maule M-5-235C · Jay Em, WY · Accident · No injuries · Class 4 · Limited · Final report · Jan 1, 2026 · N56500 · Substantial damage
  > The loss of directional control and subsequent nose over due to the inadvertent engagement of the right wheel parking brake as a result of cabin floor carpeting migrating between the right brake master cylinder and parking brake locking lever.
- [NTSB WPR25FA079](https://openairdocs.org/ntsb/WPR25FA079.md): Piper PA-24-250 · Rock Springs, WY · Accident · 1 fatal · Class 3 · Field · Preliminary report · Jan 14, 2025 · N6502P
  > On January 14, 2025, about 0622 mountain standard time, a Piper PA-24-250, N6502P, was destroyed when it was involved in an accident near Rock Springs, Wyoming. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations…
- [NTSB ANC24LA070](https://openairdocs.org/ntsb/ANC24LA070.md): Roberts Jeff Super RV8 · Carter, WY · Accident · No injuries · Class 4 · Limited · Final report · Jul 27, 2024 · N854 · Substantial damage
  > The pilots encounter with a shifting winds during takeoff, which resulted in a loss of control and runway excursion.
- [NTSB GAA19CA395](https://openairdocs.org/ntsb/GAA19CA395.md): Maule M5 · Gillette, WY · Accident · No injuries · Data collection · Final report · Jun 27, 2019 · N6127M · Substantial damage
  > The pilot's selection of unsuitable terrain for landing, which resulted in a nose-over.
- [NTSB CEN17LA356](https://openairdocs.org/ntsb/CEN17LA356.md): Cessna R182 · Worland, WY · Accident · No injuries · Limited investigation · Final report · Sep 12, 2017 · N1835R · Substantial damage
  > The pilot's decision to operate an airplane with unreliable fuel gauges and the worn fuel cap seal that allowed fuel to siphon from the left wing fuel tank, which ultimately resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB CEN15LA284](https://openairdocs.org/ntsb/CEN15LA284.md): Cessna TR182 · Casper, WY · Accident · Serious injuries · Limited investigation · Final report · Jun 27, 2015 · N4751S · Substantial damage
  > The improper repair of the carburetor heat cable sheath to clamp joint, which prevented the proper operation of the carburetor heat and resulted in the loss of engine power.
- [NTSB WPR13LA094](https://openairdocs.org/ntsb/WPR13LA094.md): Piper PA-28-235 · Rock Springs, WY · Accident · No injuries · Limited investigation · Final report · Jan 18, 2013 · N49DS · Substantial damage
  > The pilot's inadvertent movement of the fuel selector valve beyond its tank detent, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the failure of the fuel selector interlock mechanism.
- [NTSB DEN02FA105](https://openairdocs.org/ntsb/DEN02FA105.md): Piper PA-24-260 · Rock Springs, WY · Accident · No injuries · Field investigation · Final report · Sep 15, 2002 · N8822P · 2 aircraft · Substantial damage
  > the flight crew of the Beech and the pilot of the Piper's failure to attain proper clearance from the other during their respective landings. Factors contributing to the accident were the crew's and the pilot of the other airplane's inadequate visual lookout…
- [NTSB DEN00LA038](https://openairdocs.org/ntsb/DEN00LA038.md): Piper PA-23-250 · Rock Springs, WY · Accident · No injuries · Limited investigation · Final report · Jan 8, 2000 · N128Y · Substantial damage
  > A forced landing on rough, unsuitable terrain. Factors were: Inadequate preflight planning, flight into known adverse weather conditions containing snow, high gusting winds, low temperatures, and a total loss of power for non mechanical reasons due to…
- [NTSB DEN99FA012](https://openairdocs.org/ntsb/DEN99FA012.md): Piper PA-28-235 · Buffalo, WY · Accident · 2 fatal · Field investigation · Final report · Oct 19, 1998 · N8537N · Destroyed
  > The non-instrument rated pilot's initiated flight into adverse weather conditions and inadvertently flew into IMC weather conditions. Factors were the low ceiling weather conditions, the dark night light conditions, and a non operating VOR navigational aid.
- [NTSB SEA97LA021](https://openairdocs.org/ntsb/SEA97LA021.md): Maule M-7-235 · Laramie, WY · Accident · No injuries · Limited investigation · Final report · Oct 25, 1996 · N5664Y · Substantial damage
  > VFR flight by the pilot into instrument meteorological conditions (IMC), his misjudged speed/distance on final approach for landing, and his failure to attain the proper touchdown point during the landing. Factors relating to the accident include snow, low…
- [NTSB SEA96FA010](https://openairdocs.org/ntsb/SEA96FA010.md): Maule M-5-235C · Alta, WY · Accident · 1 fatal · Field investigation · Final report · Oct 23, 1995 · N71AR · Destroyed
  > the corrosion, consequent fatigue cracking and ultimate separation of the right wing forward lift strut.
- [NTSB SEA95FA199](https://openairdocs.org/ntsb/SEA95FA199.md): Piper PA-24-250 · Sheridan, WY · Accident · 2 fatal · Field investigation · Final report · Sep 3, 1995 · N700TD · Substantial damage
  > fuel starvation for undetermined reasons. The lack of suitable terrain for the forced landing was a factor.
- [NTSB SEA92FA222](https://openairdocs.org/ntsb/SEA92FA222.md): Maule M-5-235C · Moran, WY · Accident · 3 fatal · Field investigation · Final report · Oct 16, 1991 · N19AR · Destroyed
  > The pilot's failure to maintain clearance and altitude from terrain while maneuvering, and his failure to adequately compensate for the wind conditions. Factors contributing to the accident are terrain-induced turbulence, unfavorable winds, gusty high winds,…
- [NTSB DEN87FA050](https://openairdocs.org/ntsb/DEN87FA050.md): Cessna TR-182 · Moran, WY · Accident · 1 fatal · Field investigation · Final report · Feb 2, 1987 · N6089T · Destroyed
  > The pilot received several weather briefings prior to departure. Briefings included reports of icing conditions, low clouds and turbulence. VFR flight was not recommended. Plt departed VFR and filed IFR enroute to jackson. The pilot was issued instructions…
- [NTSB DEN85LA154](https://openairdocs.org/ntsb/DEN85LA154.md): Callair A-9 · Riverton, WY · Accident · Minor injuries · Limited investigation · Final report · Jun 7, 1985 · N8280H · Substantial damage
  > During an aerial application turn-around maneuver, the eng lost power. The plt stated that he immediately changed the fuel selector & turned on the boost pump, but the acft was too low for the eng to have time to restore power. The eng had been using fuel…
- [NTSB DEN83LA037](https://openairdocs.org/ntsb/DEN83LA037.md): Cessna TR182 · Lander, WY · Accident · No injuries · Limited investigation · Final report · Dec 22, 1982 · N756CK · Substantial damage
  > The aircraft nose wheel collapsed during landing. The plane then turned left went off the runway and collided with a snowbank. An examination of the aircraft revealed no evidence of a mechanical malfunction or failure of the nose gear prior to touchdown.
- [NTSB DEN82FA075](https://openairdocs.org/ntsb/DEN82FA075.md): Piper PA-24-250 · Wheatland, WY · Accident · 1 fatal · Field investigation · Final report · May 1, 1982 · N6695P · Destroyed
  > The acft struck a tree approximately 1/2 mi from the approach end of rwy 08. No fuel was on board the acft. The gear were down & the flaps were in the 10 deg position.
- [NTSB DEN80DTC31](https://openairdocs.org/ntsb/DEN80DTC31.md): Cessna 182-TR · Sundance, WY · Accident · Minor injuries · Closed · Sep 17, 1980 · N756WV · Substantial damage
- [NTSB DEN80FTC23](https://openairdocs.org/ntsb/DEN80FTC23.md): Piper PA-25 · Aladdin, WY · Accident · No injuries · Closed · Jul 15, 1980 · N4771Y · Substantial damage
- [NTSB DEN74DTC19](https://openairdocs.org/ntsb/DEN74DTC19.md): Piper PA-28 · Rock Springs, WY · Accident · No injuries · Closed · Oct 19, 1973 · N9359W · Substantial damage
- [NTSB DEN73DTC03](https://openairdocs.org/ntsb/DEN73DTC03.md): Piper PA-24 · Cheyenne, WY · Accident · Minor injuries · Closed · Jul 30, 1972 · N5505P · Substantial damage
- [NTSB DEN71DXA20](https://openairdocs.org/ntsb/DEN71DXA20.md): Piper PA-25 · Casper, WY · Accident · No injuries · Closed · Apr 2, 1971 · N7685Z · Substantial damage
- [NTSB DEN66D0196](https://openairdocs.org/ntsb/DEN66D0196.md): Piper PA-24 · Riverton, WY · Accident · No injuries · Closed · Dec 24, 1965 · N6648P · Substantial damage
- [NTSB DEN65F0115](https://openairdocs.org/ntsb/DEN65F0115.md): Piper PA-24 · Sheridan, WY · Accident · No injuries · Closed · Jun 20, 1965 · N8324P · Substantial damage
- [NTSB DEN65D0080](https://openairdocs.org/ntsb/DEN65D0080.md): Piper PA-25 · Lebarge, WY · Accident · Minor injuries · Closed · Apr 27, 1965 · N7375Z · Substantial damage
- [NTSB UNK64X0545](https://openairdocs.org/ntsb/UNK64X0545.md): Piper PA24 · Cheyenne, WY · Accident · No injuries · Closed · Feb 12, 1964 · N6093P · 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" = 'WY' 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=WY

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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.
