NTSB investigations: Franklin 6A8 series, CA

8 cases on aircraft whose registry engine model is Franklin 6A8 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

19662026
NTSB investigations: Franklin 6A8 series, CA per year, 1966–2026: 8 cases
19661
19681
19702
19781
19841
20051
20071

Latest 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\" = 'CA' 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 ('27030'))
  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.

NTSB LAX07LA078Accident · No injuriesLimited investigationFinal reportRepublic RC-3 · Julian, CAThe failure of the propeller to crankshaft attachment bolts due to fatigue. A contributing factor was the improper installation of the propeller assembly by maintenance personnel.Feb 2, 2007 · N6248K · Substantial damageNTSB LAX05LA172Accident · Minor injuriesLimited investigationFinal reportRepublic RC-3 · Geyserville, CAA loss of engine power due to failure of the number 1 connecting rod bearing due to a probable oil starvation.May 14, 2005 · N6292K · Substantial damageNTSB LAX84LA229Accident · Minor injuriesLimited investigationFinal reportRepublic RC-3 · Lakeport, CAThe plt reported that on his preflight he found the eng compression & oil level to be low but after servicing the oil to the proper level he departed & on initial climb, after reaching about 100 ft AGL, the eng started popping & losing RPM. The plt made a…Mar 22, 1984 · N6470K · Substantial damageNTSB LAX78DVA35Accident · No injuriesClosedRepublic RC-3 · Buttonwillow, CAApr 10, 1978 · N6392K · Substantial damageNTSB LAX71FUA21Accident · No injuriesClosedRepublic RC-3 · Avalon, CAOct 7, 1970 · N87564 · Substantial damageNTSB OAK70DXQ03Accident · No injuriesClosedRepublic RC-3 · Homewood, CAFeb 11, 1970 · N6652K · Substantial damageNTSB OAK69F0098Accident · Serious injuriesClosedRepublic RC-3 · Sacramento, CAJun 16, 1968 · N6375K · DestroyedNTSB LAX66F0222Accident · No injuriesClosedRepublic RC-3 · Pacoima, CAJan 8, 1966 · N87545 · Substantial damage