Final NTSB investigations: Semco Balloon CHALLENGER

6 cases on aircraft the registry lists as Semco Balloon CHALLENGER. 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

19742026

Final NTSB investigations: Semco Balloon CHALLENGER per year, 1974–2026: 6 cases
1974	1
1975	1
1977	1
1978	2
1994	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."completionStatus" = 'Completed' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('8070802')) 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.\"completionStatus\" = 'Completed'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('8070802'))
  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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('8070802'))
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 MIA95LA013Accident · Minor injuriesLimited investigationFinal reportSemco Challenger · Miami, FLFailure of the basket suspension cables due to corrosion and overstress separations. Contributing to the accident was an inadequate annual inspection of the basket suspension cables by an authorized FAA repairman.Oct 29, 1994 · N2048J · Substantial damage NTSB FTW78FPM21Accident · Serious injuriesClosedSemco Chlngr · Tulsa, OKJun 29, 1978 · N14554 · No damage NTSB CHI78DEE55Accident · Serious injuriesClosedSemco AX7 · Mchenry, ILJun 24, 1978 · N35996 · Substantial damage NTSB CHI78DEP02Accident · Serious injuriesClosedSemco Chlngr · Mauston, WIOct 16, 1977 · N14550 · No damage NTSB FTW76AF022Accident · 1 fatalClosedSemco TC-4 · Baton Rouge, LASep 19, 1975 · N3810 · Destroyed NTSB CHI75AC032Accident · 1 fatalClosedSemco AX-7 · Harvard, ILOct 12, 1974 · N14545 · Minor damage