NTSB investigations: Cessna 177A, 1971

7 cases on aircraft the registry lists as Cessna 177A. 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

19692026

NTSB investigations: Cessna 177A, 1971 per year, 1969–2026: 83 cases
1969	7
1970	4
1971	7
1972	2
1973	8
1974	4
1975	4
1976	1
1977	2
1978	2
1979	3
1980	1
1981	3
1982	1
1983	1
1986	2
1987	2
1988	2
1989	1
1990	5
1993	2
1996	3
1998	1
1999	1
2003	1
2004	1
2005	2
2006	1
2010	1
2013	1
2014	1
2016	1
2017	1
2020	1
2024	1
2025	1
2026	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 year(c."eventDate") = 1971 AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('2073706')) 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 year(c.\"eventDate\") = 1971
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('2073706'))
  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 year(c."eventDate") = 1971
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('2073706'))
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 OAK72AP021Accident · 2 fatalClosedCessna 177A · Las Vegas, NVDec 22, 1971 · N30521 · Destroyed NTSB MIA72DLA16Accident · Minor injuriesClosedCessna 177 · Gainesville, FLOct 23, 1971 · N30446 · Substantial damage NTSB OAK72FVA25Accident · Serious injuriesClosedCessna 177A · Fresno, CASep 18, 1971 · N371DA · Substantial damage NTSB MKC72DCJ25Accident · No injuriesClosedCessna 177 · Leigh, NESep 11, 1971 · N30535 · Substantial damage NTSB NYC71FGT18Accident · Serious injuriesClosedCessna 177A · Newville, PAJun 23, 1971 · N836DB · Substantial damage NTSB CHI71DEC51Accident · No injuriesClosedCessna 177 · Owosso, MIMay 10, 1971 · N30409 · Substantial damage NTSB MIA71DLA34Accident · No injuriesClosedCessna 177 · Gainesville, FLFeb 23, 1971 · N30415 · Substantial damage