NTSB investigations: Amateur-built UNKNOWN ENG, UT
8 cases on aircraft whose registry engine model is Amateur-built UNKNOWN ENG, 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 |
|---|---|
| 1987 | 1 |
| 1993 | 1 |
| 1994 | 1 |
| 2000 | 1 |
| 2007 | 3 |
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\" = 'UT' 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 ('99999')
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."eventStateOrRegion" = 'UT' 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 ('99999')
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 SEA08LA007Accident · Minor injuriesLimited investigationFinal reportHaring Clay RV8A · Brigham City, UTFuel exhaustion due to the pilot's inaccurate fuel consumption calculations. Factors include an inaccurate fuel quantity measuring system, and soft terrain encountered during the landing roll.NTSB SEA07CA167Accident · No injuriesData collectionFinal reportRallison Rotorway 162F · Logan, UTThe total loss of engine power due to the pilot inadvertently deactivating the rotor drive clutch assembly. A contributing factor was the downhill terrain condition where he landed, which exceeded the slope limitations of the helicopter.NTSB SEA07CA083Accident · No injuriesData collectionFinal reportDuffy/Wagner Vans RV-4 · Ogden, UTThe pilot's inadequate fuel management resulting in a loss of engine power due to fuel starvation. A contributing factor was the lack of suitable terrain for the forced landing.NTSB DEN00LA105Accident · Minor injuriesLimited investigationFinal reportFroelich Lancair IV · Bountiful, UTThe loss of power for undetermined reasons and the pilot's unsuccessful remedial action (dive to avoid the power line). Contributing factors were the power line, the tires and the fence.NTSB SEA94LA119Accident · 1 fatalLimited investigationFinal reportHallstrom BD-5B · St. George, UTCarburetor contamination and low output, and the pilot's improper decision to attempt to continue the approach. A factor was the pilot's lack of recent flight experience.NTSB SEA93LA174Accident · 2 fatalLimited investigationFinal reportBrauch Glasair · Blanding, UTThe loss of engine power resulting from inadequate maintenance inspection by the pilot, a leak from loose fuel system line fittings, and fuel exhaustion. A factor relating to the accident was the rough/uneven terrain.NTSB DEN87LA097Accident · Minor injuriesLimited investigationFinal reportMclachlan Moni · Tooele, UTThe private plt was cruising the local area near his home in his homebuilt experimental moni. The newly installed engine began to run rough. This engine is not a traditional acft engine and was a two cycle, two cylinder engine manufactured in italy, with an…NTSB DEN83FA131Accident · 2 fatalField investigationFinal reportAero Commander 680FL · Monticello, UTThe acft crashed while doing magnetometer surveys at low altitude. The right engine had lost power then regained it for a short period and lost it again. A videotape in the acft recorded the plt saying, 'I changed that # just in time.' The acft yawed and the…