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NTSB investigations: Lycoming 0-540 series, WY

27 cases on aircraft whose registry engine model is Lycoming 0-540 series. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19642026

Where

Latest cases

Query with 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

duckdb -csv -c "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"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

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

Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.

NTSB WPR26LA075Accident · No injuriesClass 4 · LimitedFinal reportMaule M-5-235C · Jay Em, WYThe 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.Jan 1, 2026 · N56500 · Substantial damage NTSB WPR25FA079Accident · 1 fatalClass 3 · FieldPreliminary reportPiper PA-24-250 · Rock Springs, WYOn 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…Jan 14, 2025 · N6502P NTSB ANC24LA070Accident · No injuriesClass 4 · LimitedFinal reportRoberts Jeff Super RV8 · Carter, WYThe pilots encounter with a shifting winds during takeoff, which resulted in a loss of control and runway excursion.Jul 27, 2024 · N854 · Substantial damage NTSB GAA19CA395Accident · No injuriesData collectionFinal reportMaule M5 · Gillette, WYThe pilot's selection of unsuitable terrain for landing, which resulted in a nose-over.Jun 27, 2019 · N6127M · Substantial damage NTSB CEN17LA356Accident · No injuriesLimited investigationFinal reportCessna R182 · Worland, WYThe 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.Sep 12, 2017 · N1835R · Substantial damage NTSB CEN15LA284Accident · Serious injuriesLimited investigationFinal reportCessna TR182 · Casper, WYThe 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.Jun 27, 2015 · N4751S · Substantial damage NTSB WPR13LA094Accident · No injuriesLimited investigationFinal reportPiper PA-28-235 · Rock Springs, WYThe 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.Jan 18, 2013 · N49DS · Substantial damage NTSB DEN02FA105Accident · No injuriesField investigationFinal reportPiper PA-24-260 · Rock Springs, WYthe 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…Sep 15, 2002 · N8822P · 2 aircraft · Substantial damage NTSB DEN00LA038Accident · No injuriesLimited investigationFinal reportPiper PA-23-250 · Rock Springs, WYA 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…Jan 8, 2000 · N128Y · Substantial damage NTSB DEN99FA012Accident · 2 fatalField investigationFinal reportPiper PA-28-235 · Buffalo, WYThe 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.Oct 19, 1998 · N8537N · Destroyed NTSB SEA97LA021Accident · No injuriesLimited investigationFinal reportMaule M-7-235 · Laramie, WYVFR 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…Oct 25, 1996 · N5664Y · Substantial damage NTSB SEA96FA010Accident · 1 fatalField investigationFinal reportMaule M-5-235C · Alta, WYthe corrosion, consequent fatigue cracking and ultimate separation of the right wing forward lift strut.Oct 23, 1995 · N71AR · Destroyed NTSB SEA95FA199Accident · 2 fatalField investigationFinal reportPiper PA-24-250 · Sheridan, WYfuel starvation for undetermined reasons. The lack of suitable terrain for the forced landing was a factor.Sep 3, 1995 · N700TD · Substantial damage NTSB SEA92FA222Accident · 3 fatalField investigationFinal reportMaule M-5-235C · Moran, WYThe 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,…Oct 16, 1991 · N19AR · Destroyed NTSB DEN87FA050Accident · 1 fatalField investigationFinal reportCessna TR-182 · Moran, WYThe 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…Feb 2, 1987 · N6089T · Destroyed NTSB DEN85LA154Accident · Minor injuriesLimited investigationFinal reportCallair A-9 · Riverton, WYDuring 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…Jun 7, 1985 · N8280H · Substantial damage NTSB DEN83LA037Accident · No injuriesLimited investigationFinal reportCessna TR182 · Lander, WYThe 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.Dec 22, 1982 · N756CK · Substantial damage NTSB DEN82FA075Accident · 1 fatalField investigationFinal reportPiper PA-24-250 · Wheatland, WYThe 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.May 1, 1982 · N6695P · Destroyed NTSB DEN80DTC31Accident · Minor injuriesClosedCessna 182-TR · Sundance, WYSep 17, 1980 · N756WV · Substantial damage NTSB DEN80FTC23Accident · No injuriesClosedPiper PA-25 · Aladdin, WYJul 15, 1980 · N4771Y · Substantial damage NTSB DEN74DTC19Accident · No injuriesClosedPiper PA-28 · Rock Springs, WYOct 19, 1973 · N9359W · Substantial damage NTSB DEN73DTC03Accident · Minor injuriesClosedPiper PA-24 · Cheyenne, WYJul 30, 1972 · N5505P · Substantial damage NTSB DEN71DXA20Accident · No injuriesClosedPiper PA-25 · Casper, WYApr 2, 1971 · N7685Z · Substantial damage NTSB DEN66D0196Accident · No injuriesClosedPiper PA-24 · Riverton, WYDec 24, 1965 · N6648P · Substantial damage NTSB DEN65F0115Accident · No injuriesClosedPiper PA-24 · Sheridan, WYJun 20, 1965 · N8324P · Substantial damage NTSB DEN65D0080Accident · Minor injuriesClosedPiper PA-25 · Lebarge, WYApr 27, 1965 · N7375Z · Substantial damage NTSB UNK64X0545Accident · No injuriesClosedPiper PA24 · Cheyenne, WYFeb 12, 1964 · N6093P · Substantial damage