NTSB investigations: Lycoming VO-435 series
17 cases on aircraft whose registry engine model is Lycoming VO-435 series, where the first occurrence was “In flight collision with terrain/water”. 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
| 1982 | 3 |
|---|---|
| 1983 | 1 |
| 1984 | 1 |
| 1985 | 2 |
| 1986 | 1 |
| 1987 | 1 |
| 1989 | 1 |
| 1990 | 1 |
| 1991 | 2 |
| 1992 | 1 |
| 1994 | 2 |
| 2003 | 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41525')
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\" = 230))
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 ('41525')
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" = 230))
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 CHI03LA204Accident · No injuriesLimited investigationFinal reportContinental Copters MK6B · Ft. Yates, NDThe inadvertent settling with power and unsuccessful remedial action by the pilot. A factor to the accident was the potato crop.NTSB LAX94LA386Accident · 2 fatalLimited investigationFinal reportBell 47G-5 · Pacific Ocean (Pacific Ocean)an in-flight collision with the water for undetermined reasons.NTSB SEA94LA064Accident · Minor injuriesLimited investigationFinal reportHiller-Soloy H-23D · Seaside, ORThe pilot's improper use of flight controls resulting in settling with power.NTSB LAX92LA378Accident · No injuriesLimited investigationFinal reportTexas Helicopter OH-13E/M74 · Chandler, AZThe pilot's misjudging the performance and weight and balance data of the helicopter prior to departure. Contributing to the accident was a failure of the pilot to jettison the chemical load.NTSB FTW91LA125Accident · No injuriesLimited investigationFinal reportBell 47G-2 · Slidell, LAThe pilot performing a touchdown autorotation to unsuitable terrain. Factors were the soft terrain and the inadequate supervision by the FAA inspector.NTSB CHI91LA205Accident · No injuriesLimited investigationFinal reportHiller UH-12D · Savoy, ILThe pilot's failure to maintain tail rotor clearance from the ground. A related factor is the pilot's lack of total experience in helicopters.NTSB MKC90LA138Accident · No injuriesLimited investigationFinal reportHiller 12-E · Watson, MNPilot misjudged his flare and collided with the terrain.NTSB ATL89FA193Accident · 1 fatalField investigationFinal reportTexas Helicopter OH-13/M74 · Norman Park, GAImproper planning/decision by the pilot, which resulted in his physical impairment from exposure to lannate, and his failure to maintain altitude/clearance above the ground. A factor related to the accident was: failure of the pilot to use a respirator while…NTSB ATL87LA222Accident · Minor injuriesLimited investigationFinal reportBell 47G-2 · Huntsville, ALThe helicopter impacted the water during a low-altitude turn over a river. The plt made a low pass to the south over an island at about 30 ft AGL, to show the island to the policewoman/traffic observer onboard. As he was making a climbing right turn at about…NTSB SEA86LA177Accident · Minor injuriesLimited investigationFinal reportBell 47G3B2 · Nahcotta, WAWhile spraying oyster beds the pilot inadvertently flew the helicopter into the ground.NTSB CHI85FA301Accident · 1 fatalField investigationFinal reportBell 47G2A1 · Brook, INThe helicopter contacted the terrain in a flat attitude and rolled over during an autorotative landing. A witness stated an autorotation was entered at 800 ft AGL during which the plt made a 360 deg descending turn. An application of pwr was heard at an alt…NTSB SEA85LA126Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Athena, ORThe acft settled back to the ground shortly after takeoff before achieving translatioanal lift. The plt was attempting to test a new spray unit that had been installed. He had put 80 gallons of water in the spray tanks.NTSB ATL84LA295Accident · Minor injuriesLimited investigationFinal reportBell 47G-5 · Bluefield, WVThe pilot stated that he hovered the helicopter, made a right pedal turn and initiated a hover taxi across a rocky ravine adjacent to the pad. When over the ravine the helicopter settled onto to boulders beneath it. The pilot also stated that he thought he…NTSB MIA83LA196Accident · No injuriesLimited investigationFinal reportBell 47G-2 · Miami, FLThe student was a rated single eng, multiengine, land plt, but did not have a helicopter rating. During a dual instructional flt, he had just completed the final phase of an autorotation & the skids were on the ground, when he abruptly pulled the collective…NTSB MKC82DA129Accident · No injuriesFinal reportTexas Helicopter OH-13E · 10 Sw Of Milan, MOThe plt had reduced the spray load from 90 to 50 gals to compensate for the increase in density altitude. The winds were blowing lightly during previous takeoffs but were calm during this takeoff. As the helicopter hovered forward during the takeoff it failed…NTSB MKC82DA082Accident · Minor injuriesFinal reportBell 47G2 · Thornton, IADuring the downwind turn for the fourth spraying pass the pilot encountered a gust of wind. The pilot stated he applied power, collective and cyclic to level off at spraying altitude but the wind was too strong to prevent the tailboom from striking the ground.NTSB SEA82DA050Accident · No injuriesFinal reportBell 47G-2A · Lyle, WADuring takeoff with a load of fertilizer, insufficient power was available to maintain engine and rotor RPM and sustain flight. The pilot dumped the load, but was unable to avoid ground contact. The tail rotor struck first and separated from the aircraft. The…