NTSB investigations: Piper PA-23-250, MD

7 cases on aircraft the registry lists as Piper PA-23-250. 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

19652026

NTSB investigations: Piper PA-23-250, MD per year, 1965–2026: 7 cases
1965	2
1966	1
1967	1
1973	1
1974	1
1988	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" = 'MD' 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 ('7102308')) 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\" = 'MD' 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 ('7102308'))
  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" = 'MD' 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 ('7102308'))
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 BFO89FA009Accident · 1 fatalField investigationFinal reportPiper PA-23-250 · Towson, MDAbout 6 min after takeoff, after leveling at 3500 ft, the plt rprtd he was having a probelm that he was unable to figure out. A few minutes later, he repeated the same problem & elected to divert to a nearby arpt. Witnesses rprtd the acft reversed course svrl…Nov 11, 1988 · N63762 · Destroyed NTSB IAD74AI062Accident · No injuriesClosedPiper PA-23 · Cove Point, MDMay 22, 1974 · N40592 · Substantial damage NTSB IAD73AI014Accident · 1 fatalClosedPiper PA-23 · Cumberland, MDApr 24, 1973 · N5557Y · Destroyed NTSB DIA67A0012Accident · 1 fatalClosedPiper PA-23 · Oldtown, MDMar 1, 1967 · N5868Y · Destroyed NTSB NYC67D0386Accident · No injuriesClosedPiper PA-23 · Waldorf, MDNov 30, 1966 · N5574Y · Substantial damage NTSB NYC66A0036Accident · 1 fatalClosedPiper PA-23 · Glen Burnie, MDSep 20, 1965 · N5759Y · Destroyed NTSB NYC66A0018Accident · 2 fatalClosedPiper PA-23 · Union Bridge, MDAug 4, 1965 · N4778P · Destroyed