NTSB investigations: Lockheed 18-56, FL

10 cases on aircraft the registry lists as Lockheed 18-56. 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

19662026

NTSB investigations: Lockheed 18-56, FL per year, 1966–2026: 10 cases
1966	1
1967	1
1969	1
1971	1
1973	2
1974	2
1976	1
1978	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" = 'FL' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('5261642')) 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\" = 'FL' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('5261642'))
  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" = 'FL' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('5261642'))
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 MIA78FA075Accident · 3 fatalClosedLockheed 18-56 · Durbin, FLMay 1, 1978 · N9051 · Destroyed NTSB MIA76AM076Accident · 2 fatalClosedLockheed 18-56 · Brighton, FLApr 9, 1976 · N64E · Destroyed NTSB MIA74AM058Accident · 3 fatalClosedLockheed 18 · Pompano Beach, FLJan 14, 1974 · N2375 · Destroyed NTSB MIA74AM057Accident · No injuriesClosedLockheed 18-56 · Placida, FLJan 11, 1974 · N711FN · Substantial damage NTSB MIA74FLD19Accident · No injuriesClosedLockheed L-18 · Lakeland, FLAug 20, 1973 · N608L · Substantial damage NTSB MIA73AM104Accident · No injuriesClosedLockheed L18 · Naples, FLMay 27, 1973 · N307C · Substantial damage NTSB MIA72AM035Accident · No injuriesClosedLockheed 18-56 · Jacksonville, FLOct 14, 1971 · N669 · Substantial damage NTSB MIA70A0034Accident · Serious injuriesClosedLockheed 18 · Golden Gate, FLOct 16, 1969 · N170L · Destroyed NTSB MIA68A0050Accident · No injuriesClosedLockheed 18 · Ft Lauderdale, FLNov 25, 1967 · N24A · Substantial damage NTSB MIA66A0132Accident · No injuriesClosedLockheed 18 · Miami, FLMay 14, 1966 · N511H · Substantial damage