NTSB investigations: Franklin 6V4 series
9 cases on aircraft whose registry engine model is Franklin 6V4 series, where the first occurrence was “In flight collision with object”. 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.
Cases per year
| 1984 | 1 |
|---|---|
| 1989 | 2 |
| 1990 | 2 |
| 1991 | 1 |
| 1997 | 2 |
| 1999 | 1 |
Where
Open the mapLatest cases
Query with SQL
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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27033')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 220))
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27033')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 220))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun 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 NYC00LA044Accident · No injuriesLimited investigationFinal reportBell 47G · Coudersport, PAThe pilot's improper preflight planning and decision to attempt a takeoff with the passenger from the confined area.NTSB MIA97FA248Accident · 2 fatalField investigationFinal reportBell 47G · Saluda, SCin-flight collision with a tree, for undetermined reason(s).NTSB ATL97LA121Accident · No injuriesLimited investigationFinal reportBell 47-D1 · Holcomb, MSThe failure of the pilot to adequately see and avoid all obstructions while doing aerial application work.NTSB SEA91LA233Accident · Minor injuriesLimited investigationFinal reportBell 47G · Miltonfreewater, ORPilot factor in that the pilot failed to insure there was adequate clearance from obstacles for a safe takeoff. A factor to the accident was: the pilot's poor preflight planning/preparation.NTSB CHI90DEC04Accident · Serious injuriesFinal reportBell 47 D-1 · Stockbridge, MIThe restricted visual lookout which resulted from the canopy fogging up.NTSB NYC90DGM02Accident · 1 fatalFinal reportBell 47D1 · Meadville, PAThe pilot's failure to see and avoid the power lines.NTSB SEA89LA120Accident · Minor injuriesLimited investigationFinal reportBell 47G-2 · Centralia, WAThe pilot misjudged his clearance over trees, which resulted in an in-flight tail rotor strike with the trees and loss of tail rotor control. The trees were a related factor.NTSB MIA89LA133Accident · Serious injuriesLimited investigationFinal reportBell 47D1 · Miami, FLThe unqualified persons failure to maintain clearance from the fence. Pressure induced by others, lack of experience, and over confidence in personal ability are contributing factors to this accident.NTSB FTW85LA074Accident · Serious injuriesLimited investigationFinal reportBell 47D1 · Ardmore, OKThe acft collided with power lines during a recovery from a practice autorotational landing. The instructor plt took control of the acft for recovery and did not see the wires.