NTSB investigations: Lycoming VO-435 series, IL
16 cases on aircraft whose registry engine model is Lycoming VO-435 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
| 1972 | 1 |
|---|---|
| 1974 | 1 |
| 1975 | 2 |
| 1981 | 1 |
| 1982 | 1 |
| 1985 | 1 |
| 1987 | 1 |
| 1991 | 1 |
| 1993 | 1 |
| 1994 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2013 | 1 |
| 2016 | 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.\"eventStateOrRegion\" = 'IL' 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 ('41525'))
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" = 'IL' 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 ('41525'))
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 CEN16CA321Accident · Serious injuriesData collectionFinal reportContinental Copters Tomcat MK6B · Sparland, ILThe pilot's improper fuel management, which resulted in fuel exhaustion, a total loss of engine power, and a forced landing.NTSB CEN16LA284Accident · No injuriesLimited investigationFinal reportTexas Helicopter OH 13H/M74A · Minonk, ILFailure of the truck driver to ensure that he had adequate clearance to pass under the helicopter and the failure of the loader to park in a safer area for reloading operations.NTSB CEN13LA442Accident · No injuriesLimited investigationFinal reportTexas Helicopter OH-13H/M74A · Streator, ILThe pilot's diverted attention during an agricultural application maneuver, which resulted in the helicopter impacting a corn field.NTSB CEN11CA524Accident · Minor injuriesData collectionFinal reportTexas Helicopter OH-13H/M74A · Creston, ILThe pilot's failure to maintain adequate skid clearance from the helicopter cart during landing, resulting in a dynamic rollover.NTSB CEN10CA411Accident · Minor injuriesData collectionFinal reportContinental Copters Tomcat MK6B · Blackstone, ILThe helicopter encountered a dust devil at a low altitude during the aerial application flight.NTSB CHI95LA003Accident · Minor injuriesLimited investigationFinal reportBell 47G2 · Decatur, ILthe failure of the roller springs in the freewheeling unit of the transmission which caused the unit to disengage.NTSB CHI93LA320Accident · Minor injuriesLimited investigationFinal reportBell 47-G5 · Schaumburg, ILthe pilot's improper autorotation techniques.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 CHI87DEV02Accident · No injuriesFinal reportBell 47G2 · Peoria Heights, ILReturning from a powerline patrol flight, the engine surged twice and quit. The pilot executed an autorotation to the only available landing site, a high school football field. On touchdown the blades flexed and severed the tailboom. Investigation revealed…NTSB CHI85FEV04Accident · No injuriesFinal reportHiller UH-12D · Breese, ILThe plt reported that the eng began losing power while he was en route at an alt of aprx 200 ft AGL. He turned & initiated an autorotation to a road construction site. The helicopter landed tail low. Subsequently, the tail boom was chopped off & the…NTSB CHI82DA171Accident · Minor injuriesFinal reportBell 47G-5 · Sublette, ILPrior to this flight, the helicopter had been flown about 1 hr from roselle to Sublette, IL, then it was flown another 1/2 hr to survey the area to be sprayed. About 10 minutes after departing to spray, the engine lost power. The pilot started an autorotative…NTSB CHI81FEV21Accident · 1 fatalClosedTexas Hel OH-13H · Danville, ILNTSB CHI76FCA03Accident · No injuriesClosedBell 47G2 · Sauget, ILNTSB NYC75FEV23Accident · No injuriesClosedBell 47G-2 · Eddyville, ILNTSB CHI75FEE14Accident · Minor injuriesClosedBell 47G5A · Hinsdale, ILNTSB CHI73DEV05Accident · No injuriesClosedBell 47G-2 · Murdock, IL