NTSB investigations: Lycoming TVO-435-GIA, MT
15 cases on aircraft whose registry engine model is Lycoming TVO-435-GIA. 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
| 1966 | 1 |
|---|---|
| 1967 | 1 |
| 1968 | 1 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 2 |
| 1976 | 1 |
| 1977 | 1 |
| 1978 | 1 |
| 1982 | 1 |
| 1983 | 1 |
| 1984 | 1 |
| 1988 | 1 |
| 1997 | 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 ('41526'))
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 ('41526'))
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 SEA98LA006Accident · No injuriesLimited investigationFinal reportBell 47-G3B · Winston, MTFuel starvation due to fuel flow restriction from a failed carburetor automatic mixture control device. Factors include night light conditions for the forced landing.NTSB DEN88LA135Accident · Serious injuriesLimited investigationFinal reportBell 47G · Terry, MTThe aircraft was on a ferry flight from alpine, WY. To belfield, ND. The plt departed alpine at approximately 0950 and made several enroute stops to refuel. The plt intended to land at miles city, MT to refuel but he got lost and flew to Terry, MT, located 38…NTSB DEN84LA260Accident · No injuriesLimited investigationFinal reportBell 47G · West Glacier, MTFollowing in-flight power loss the pilot performed an autorotation to a forced landing on a highway. On touchdown, the main rotor made contact with a passing motor home. Investigation revealed no fuel on board, although the pilot calculated 0.6 hours of fuel…NTSB DEN83LA154Accident · No injuriesLimited investigationFinal reportBell 47G-3B-1 Soloy · Townsend, MTThe helicopter made a hard touchdown during an autorotative forced landing after the engine quit. During the landing themain rotor severed the tail boom. The pilot stretched the autorotational glide to reach a hay field and lost main rotor RPM in the process.…NTSB DEN83LA006Accident · Minor injuriesLimited investigationFinal reportBell 47G3B1 · Malta, MTThe pilot stated that he "was spraying the alfalfa field west to east" and that "there were tall cottonwood trees on three sides. A very sudden wind "came up" and "pushed" him into a tree.NTSB SEA78DTA18Accident · No injuriesClosedBell 47G3B1 · Billings, MTNTSB SEA77FTI11Accident · Serious injuriesClosedBell 47G3B1 · Polson, MTNTSB SEA77FTI01Accident · No injuriesClosedBell 47J-2 · Quake Lake, MTNTSB SEA74DTI29Accident · No injuriesClosedBell 47G3B1 · Lima, MTNTSB SEA74DTI18Accident · No injuriesClosedBell 47G3B1 · Conrad, MTNTSB SEA73FTA06Accident · No injuriesClosedBell 47G-3B · Billings, MTNTSB SEA72FTA17Accident · No injuriesClosedBell 47G-3B · Harlowton, MTNTSB SEA68A0050Accident · No injuriesClosedBell 47G-3B · Superior, MTNTSB SEA68A0012Accident · No injuriesClosedBell 47G-3B · Augusta, MTNTSB SEA67A0002Accident · Serious injuriesClosedBell 47-G3B · Clinton, MT