NTSB investigations: Lycoming GO-435C&D series, AK
8 cases on aircraft whose registry engine model is Lycoming GO-435C&D 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
| 1970 | 1 |
|---|---|
| 1971 | 1 |
| 1976 | 1 |
| 1982 | 1 |
| 1984 | 1 |
| 1990 | 1 |
| 1994 | 1 |
| 2001 | 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\" = 'AK' 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 ('41521'))
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" = 'AK' 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 ('41521'))
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 ANC01LA066Accident · No injuriesLimited investigationFinal reportHelio H-391B · Anvik, AKThe pilot's continued operation of the accident airplane with known equipment deficiencies, and an improper installation of the float assembly by maintenance personnel. A factor in the accident was the pilot's delay in aborting the takeoff.NTSB ANC94LA117Accident · No injuriesLimited investigationFinal reportStinson 108-1 · Anchorage, AKThe binding in the mechanical fuel selector valve, and lack of suitable terrain for a forced landing.NTSB ANC90LA178Accident · No injuriesLimited investigationFinal reportHelio H-391B · Circle, AKPilot-in-command's failure to maintain airplane control and the pilot's failure to identify the stall.NTSB ANC84LA126Accident · No injuriesLimited investigationFinal reportGrumman G-44A · Shanin Lake, AKThe plt reported that shortly after takeoff the acft encountered severe wind shear. The plt lost directional control of the acft & it collided with a mud bank.NTSB ANC83LA011Accident · No injuriesLimited investigationFinal reportBeech 50 · Quinhagak, AKLeft engine lost power after takeoff. Pilot feathered left engine and returned to runway on one engine. Since he was overshooting he elected to land on grass wheels up to avoid overrun and collision with ditch. The following discrepancies were found: exhaust…NTSB ANC77DAH05Accident · No injuriesClosedHelio Acft H-391B · Anchorage, AKNTSB ANC71DAG83Accident · No injuriesClosedHelio H391B · Anchorage, AKNTSB ANC71DAG19Accident · No injuriesClosedHelio Acft H-391B · Ninilchik, AK