NTSB investigations: Cessna 170B, TN

7 cases on aircraft the registry lists as Cessna 170B. 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: Cessna 170B, TN per year, 1966–2026: 7 cases
1966	3
1975	1
1976	1
2020	1
2025	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" = 'TN' 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 ('2072306', '2072307')) 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\" = 'TN' 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 ('2072306', '2072307'))
  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" = 'TN' 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 ('2072306', '2072307'))
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 ERA25LA317Accident · No injuriesClass 4 · LimitedFinal reportCessna 170B · Knoxville, TNThe pilot’s failure to maintain directional control during landing roll in a crosswind, which resulted in a runway excursion and a subsequent ground loop.Aug 25, 2025 · N4584C · Substantial damage NTSB ERA21LA095Accident · No injuriesClass 4 · LimitedFinal reportCessna 170 · Madisonville, TNThe pilot's failure to maintain directional control during the landing rollout, which resulted in a ground loop.Dec 22, 2020 · N4580C · Substantial damage NTSB IAD76FKW38Accident · No injuriesClosedCessna 170B · Powell, TNSep 11, 1976 · N2434D · Substantial damage NTSB IAD76FKW03Accident · No injuriesClosedCessna 170B · Lafayette, TNJul 21, 1975 · N8364A · Substantial damage NTSB MIA66D0573Accident · No injuriesClosedCessna 170B · Johnson City, TNMay 23, 1966 · N8278A · Substantial damage NTSB MIA66F0543Accident · Serious injuriesClosedCessna 170B · Greenville, TNMay 8, 1966 · N3118A · Substantial damage NTSB MIA66D0417Accident · No injuriesClosedCessna 170B · Powell, TNJan 23, 1966 · N1902C · Substantial damage