NTSB investigations: Lycoming TI0-540 series, MT
17 cases on aircraft whose registry engine model is Lycoming TI0-540 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.
Cases per year
| 1967 | 1 |
|---|---|
| 1969 | 1 |
| 1970 | 2 |
| 1975 | 2 |
| 1978 | 1 |
| 1981 | 2 |
| 1984 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1998 | 1 |
| 2004 | 1 |
| 2014 | 1 |
| 2016 | 1 |
| 2025 | 1 |
Where
Open the mapLatest cases
Query with SQL
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\" = 'MT' 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 ('41533'))
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" = 'MT' 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 ('41533'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun 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 WPR25LA301Accident · No injuriesClass 3 · LimitedPreliminary reportPiper PA-24-260 · West Yellowstone, MTOn June 29, 2025, at 1033 mountain daylight time, a Piper PA-24-260, N9366P, was substantially damaged when it was involved in an accident near West Yellowstone, Montana. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal…NTSB WPR16LA073Accident · Minor injuriesLimited investigationFinal reportCessna T206H · Billings, MTThe pilot’s failure to attain a proper flare during landing in gusting wind conditions and low-level wind shear, which resulted in a hard landing and a subsequent loss of directional control.NTSB WPR14LA220Accident · Serious injuriesLimited investigationFinal reportAero Commander Callair A 9B · Gardiner, MTThe pilot’s inadequate preflight planning and his subsequent takeoff with the airplane over its allowable gross weight in high density altitude conditions, which degraded the airplane’s climb performance and led to a subsequent forced landing.NTSB SEA05LA032Accident · No injuriesLimited investigationFinal reportAerostar 601 · Hamilton, MTA partial loss of engine power due to the lack of lubrication and subsequent failure of the left engine's right turbocharger for undetermined reasons, and subsequent forced landing after takeoff. A factor was the unsuitable terrain for the forced landing.NTSB SEA98FA101Accident · 2 fatalField investigationFinal reportPiper PA-46-350P · Bigfork, MTThe pilot's failure to maintain terrain clearance for undetermined reasons. Contributing factors were the mountainous terrain, trees, dark night conditions, clouds and pilot fatigue.NTSB DEN88LA197Accident · Serious injuriesLimited investigationFinal reportPiper PA-24-260C · Hamilton, MTThe private plt was descending to the destination arpt at the conclusion of a 3.5 hr x-country flight. The plt said he selected the right main fuel tank and flew until the 'fuel was low to the point of exhaustion.' During a right turn, with the gear extended,…NTSB DEN87LA067Accident · No injuriesLimited investigationFinal reportPiper PA-31-350 · Missoula, MTThe plt of the Piper navajo was taxiing to the active rwy for an IFR departure, directed his attention to the departure procedure chart in the cockpit, and collided with the tail of a swearingen acft holding short of the rwy awaiting takeoff clearance.NTSB DEN84FA121Accident · Serious injuriesField investigationFinal reportAero Commander 500-B · Miles City, MTThe plt said that when he called on the radio prior to the approach for an altimeter setting the reply was '30.11 or 30.12, something like that.' The acft altimeter was found after the accident set at 30.22 inches of mercury. The visibility was described as 1…NTSB DEN81FTA12Accident · 1 fatalClosedAero Comdr A-9B · Park City, MTNTSB DEN81DTI07Accident · No injuriesClosedAero Comdr A9B · Townsend, MTNTSB SEA79FTA04Accident · No injuriesClosedPiper PA-24 · Billings, MTNTSB SEA76FTA18Accident · No injuriesClosedPiper PA-24 · Ekalaka, MTNTSB SEA76FTA04Accident · No injuriesClosedPiper PA-24 · Lewiston, MTNTSB SEA70DDG15Accident · No injuriesClosedPiper PA-32 · Three Forks, MTNTSB SEA70FDG07Accident · No injuriesClosedPiper PA-24 · Wisdom, MTNTSB SEA69D0174Accident · No injuriesClosedAero Comdr 500-B · Belgrade, MTNTSB SEA68F0208Accident · No injuriesClosedPiper PA-24 · Pryor, MT