NTSB investigations: Continental IO-520 series, CA

9 cases on aircraft whose registry engine model is Continental IO-520 series, where the first occurrence was “In flight encounter with weather”. 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

19822026
NTSB investigations: Continental IO-520 series, CA per year, 1982–2026: 9 cases
19822
19842
19951
19971
20041
20062

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 ('17032')
      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\" = 240))
  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 LAX07LA065Accident · Serious injuriesLimited investigationFinal reportBeech A36 · Lake Hughes, CAThe pilot's inadequate preflight planning/preparation and attempted flight into known adverse weather during cruise, and his failure to maintain an adequate airspeed margin that resulted in a stall/spin. Turbulence was a factor.Dec 27, 2006 · N4598S · Substantial damageNTSB LAX06LA249Accident · Minor injuriesLimited investigationFinal reportBeech V35B · Independence, CAthe pilot's inadequate preflight and in-flight planning regarding the selection of the altitude and route of flight, which resulted in a collision with terrain in a box canyon after encountering mountain wave.Jul 28, 2006 · N346D · Substantial damageNTSB LAX05FA034Accident · 2 fatalField investigationFinal reportBeech A36 · Lake Havasu, CAthe pilot's continued visual flight into instrument meteorological conditions leading to spatial disorientation and an in-flight loss of control.Nov 14, 2004 · N6111C · DestroyedNTSB LAX97FA089Accident · 2 fatalField investigationFinal reportBeech F33A · Mt San Jacinto, CAcontinued VFR flight by the pilot into instrument meteorological conditions (IMC), and his failure to maintain proper altitude or clearance from mountainous terrain. Factors relating to the accident were: the high/mountainous terrain, and the adverse weather…Jan 13, 1997 · N31706 · DestroyedNTSB LAX95FA072Accident · 1 fatalField investigationFinal reportCessna A185F · Tehachapi, CAThe noninstrument-rated pilot's continued flight into known adverse weather, and his failure to maintain adequate airspeed while maneuvering to reverse direction. Factors relating to the accident were: the mountainous terrain, and adverse weather conditions.Jan 3, 1995 · N94296 · DestroyedNTSB LAX84FA136Accident · 1 fatalField investigationFinal reportCessna 185 · Union City, CAThe acft crashed into hilly terrain in an almost vertical high speed power on descent. A witness about 64 miles north of the accident site had seen an acft that met the description of the accident acft 'scud running', or flying beneath the low cloud bases…Jan 11, 1984 · N93086 · DestroyedNTSB LAX84FA134Accident · 4 fatalField investigationFinal reportCessna P206 · Redding, CAWhile en route, the plt contacted a fss & was advised that the Redding arpt was below minimums due to fog. He then contacted the benton UNICOM (7 mi nw of Redding muni) & reported that he could not see the rwy lights at the benton arpt, but that he would…Jan 5, 1984 · N2645X · DestroyedNTSB LAX82FUG13Accident · Serious injuriesFinal reportBeech 95-C55 · Ontario, CAWhile descending near banning, CA, the pilot lowered the gear after becoming aware of a popped circuit breaker. At the destination, there was an overcast with the tops at 4500 ft, so he diverted toward burbank, CA with the gear down. The overcast extended…Jun 22, 1982 · N707JF · DestroyedNTSB LAX82FA048Accident · 2 fatalField investigationFinal reportBeech 58 · Cherry Valley, CAAt 0702 the plt received a weather briefing for a VFR flight to fresno. The area forecast contained flight precautions for obscured mountains & IMC in the sierra nevadas, and occassional moderate icing below 15,000 ft. the flight departed at 0728. The…Jan 20, 1982 · N9395Q · Destroyed