NTSB investigations: Bell 47D1, PA

12 cases on aircraft the registry lists as Bell 47D1. 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: Bell 47D1, PA per year, 1966–2026: 12 cases
1966	1
1967	2
1968	1
1969	2
1976	1
1979	1
1990	1
2009	1
2016	1
2021	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" = 'PA' 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 ('1180802')) 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\" = 'PA' 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 ('1180802'))
  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" = 'PA' 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 ('1180802'))
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 ERA22LA039Accident · No injuriesClass 3 · LimitedFinal reportBell 47D1 · Zelienople, PAA total loss of engine power for reasons that could not be determined.Oct 31, 2021 · N132BR · Substantial damage NTSB ERA16LA167Accident · No injuriesLimited investigationFinal reportBell 47D1 · Myerstown, PAA total loss of engine power for reasons that could not be determined because examination of the engine revealed no mechanical anomalies that would have precluded normal operation.Apr 20, 2016 · N202CH · Substantial damage NTSB ERA10CA001Accident · No injuriesData collectionFinal reportBell 47D1 · Dorrance, PAA total loss of engine power due to fuel exhaustion for undetermined reasons.Oct 2, 2009 · N74004 · Substantial damage NTSB NYC90DGM02Accident · 1 fatalFinal reportBell 47D1 · Meadville, PAThe pilot's failure to see and avoid the power lines.Jun 22, 1990 · N310A · Destroyed NTSB NYC79FGT17Accident · Minor injuriesClosedBell 47D-1 · Hanover, PAJun 19, 1979 · N59326 · Substantial damage NTSB NYC76FGT27Accident · No injuriesClosedBell 47D1 · Zion Grove, PAAug 18, 1976 · N919B · Substantial damage NTSB NYC70F0032Accident · No injuriesClosedBell 47D1 · Fairfield, PAJul 9, 1969 · N225B · Substantial damage NTSB NYC69A0105Accident · 1 fatalClosedBell 47D1 · Gettysburg, PAMay 25, 1969 · N6598D · Destroyed NTSB NYC68F0500Accident · Minor injuriesClosedBell 47D-1 · Bangor, PAJun 4, 1968 · N6598D · Destroyed NTSB NYC68A0011Accident · No injuriesClosedBell 47-D1 · Waterford, PAJul 20, 1967 · N310A · Substantial damage NTSB NYC67A0162Accident · No injuriesClosedBell 47D1 · Milford Square, PAMay 17, 1967 · N925V · Substantial damage NTSB NYC66A0083Accident · Minor injuriesClosedBell 47D1 · Broqueville, PAFeb 2, 1966 · N225B · Substantial damage