NTSB investigations: Lycoming R680E series, AK

6 cases on aircraft whose registry engine model is Lycoming R680E 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19632026

NTSB investigations: Lycoming R680E series, AK per year, 1963–2026: 6 cases
1963	1
1964	2
1965	1
1968	1
1986	1

Where

Open the map

Latest cases

Query with SQL

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 ('41545')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

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 ('41545'))
  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 ('41545'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run 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 ANC86LA052Accident · No injuriesLimited investigationFinal reportConsolidated-Vultee L-13 · Fairbanks, AKDuring the takeoff roll the pilot lost control of the aircraft, the acft exited the runway and rolled over on its right side. The inspection of both tailwheel and tailwheel assembly revealed very loose cables between the locking handle and the tailwheel. At…May 2, 1986 · N2536B · Substantial damage NTSB ANC69D0032Accident · Minor injuriesClosedCessna T-50 · Stevens Vill, AKSep 1, 1968 · N64700 · Destroyed NTSB ANC66D0001Accident · No injuriesClosedStinson V-77 · Feather Rivr, AKJun 21, 1965 · N58571 · Substantial damage NTSB UNK64X2573Accident · No injuriesClosedCessna T50 · Lost River, AKJun 29, 1964 · N30023 · Substantial damage NTSB UNK64X0548Accident · No injuriesClosedStinson V77 · Diomede Is, AKFeb 12, 1964 · N52904 · Substantial damage NTSB ANC63A0060Accident · No injuriesClosedCessna T-50 · Bethel, AKJan 17, 1963 · N67643 · Substantial damage