NTSB investigations: Lycoming TVO-435-GIA
8 cases on aircraft whose registry engine model is Lycoming TVO-435-GIA, where the first occurrence was “Loss of engine power(total) - nonmechanical”. 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
| 1983 | 1 |
|---|---|
| 1984 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1990 | 1 |
| 1992 | 1 |
| 1997 | 2 |
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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41526')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 353))
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41526')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 353))
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 SEA97LA168Accident · Minor injuriesLimited investigationFinal reportBell 47G-3B · Idaho Falls, IDThe pilot mismanaged his fuel supply which led to fuel exhaustion and subsequent loss of engine power. Factors contributing to the accident were the lack of adequate altitude and airspeed to successfully execute an autorotation.NTSB LAX97TA213Accident · No injuriesFinal reportBell 47G-3B-1 · Fallon, NVexhaustion of the aircraft's fuel supply, due to improper planning and/or decision. A factor related to the accident was the high density altitude which made a successful autorotative landing unlikely.NTSB MIA93LA014Accident · Minor injuriesLimited investigationFinal reportBell 47-G3-B1 · Palm Beach, FLThe pilot's inadequate preflight planning. A factor was the pilot's failure to maintain rotor RPM during the autorotation.NTSB CHI90DER03Accident · No injuriesFinal reportBell 47G3B1 · Coon Rapids, MNThe pilot-in-command's inaccurate fuel consumption calculations and misjudgement of his fuel supply.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 DEN87LA120Accident · No injuriesLimited investigationFinal reportBell 47G3B2A · Brigham City, UTAn ag plt was ferrying a helicopter to another job in his local area. The plt, an ATP, had estimated that the helicopter had enough fuel for the flt. The helicopter's engine quit and an autorotation was performed, resulting in a hard landing. Less than one…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.…