NTSB investigations: Franklin 6V4 series, TX
32 cases on aircraft whose registry engine model is Franklin 6V4 series. 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
| 1964 | 2 |
|---|---|
| 1965 | 2 |
| 1967 | 1 |
| 1968 | 1 |
| 1969 | 2 |
| 1970 | 3 |
| 1971 | 5 |
| 1972 | 3 |
| 1973 | 4 |
| 1975 | 1 |
| 1976 | 1 |
| 1977 | 1 |
| 1981 | 1 |
| 1982 | 1 |
| 1984 | 1 |
| 1988 | 1 |
| 2017 | 1 |
| 2026 | 1 |
Where
Latest 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.\"eventStateOrRegion\" = 'TX' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27033'))
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" = 'TX' AND c."eventCountry" = 'USA'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27033'))
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 WPR26LA247Accident · Serious injuriesClass 4 · LimitedFinal reportBell 47G · Springtown, TXThe pilot’s failure to maintain clearance from trees while in a low hover.NTSB CEN17LA113Accident · Serious injuriesLimited investigationFinal reportBell-Transworld Helicopters 47D1 · Archer City, TXThe total loss of engine power due to fuel starvation, which resulted from the pilot’s inadvertent positioning of the mixture control to the “fuel cutoff” position.NTSB FTW89DPA03Accident · Serious injuriesFinal reportBell 47-D1 · Allen, TXUnqualified pilot's poor judgement in leveling the helicopter during the flare and contributing to this was his lack of total experience in this type aircraft.NTSB FTW85LA043Accident · No injuriesLimited investigationFinal reportBell 47D1 · Terlingua, TXShortly after the plt took off on a sight-seeing flt, the eng lost power when the helicopter was over rough terrain at about 200 ft AGL. During an autorotative landing, the helicopter rocked forward causing the main rotor blades to strike the tail boom.…NTSB FTW82DA073Accident · No injuriesFinal reportBell 47G · Dallas, TXThe pilot attempted to land on a narrow flatbed trailer. He stated that he encountered some buffeting from the wind funneling between two hangars. On his third attempt to position the helicopter on the trailer, the right skid slipped off. The main rotor…NTSB FTW81FA045Accident · Minor injuriesClosedBell 47D1 · Roanoke, TXNTSB FTW77FRA13Accident · No injuriesClosedBell 47D1 · Houston, TXNTSB FTW77FRG02Accident · Serious injuriesClosedBell 47G · Kerrville, TXNTSB FTW76FPA15Accident · No injuriesClosedBell 47D-1 · Irving, TXNTSB FTW74DPD01Accident · No injuriesClosedHiller UH-12A · Dublin, TXNTSB FTW73FPD37Accident · No injuriesClosedBell 47D1 · Decatur, TXNTSB FTW73DPD34Accident · No injuriesClosedHiller Acft UH-12C · Justin, TXNTSB FTW73DRG66Accident · No injuriesClosedBell 47G · San Antonio, TXNTSB FTW73DPD17Accident · No injuriesClosedHiller Acft UH-12C · Valley View, TXNTSB FTW72FPD48Accident · No injuriesClosedBell 47H-1 · Graham, TXNTSB FTW72DPD40Accident · No injuriesClosedBell 47D1 · Glen Rose, TXNTSB FTW72FPA09Accident · No injuriesClosedBell 47D1 · Carrollton, TXNTSB FTW72FPA07Accident · No injuriesClosedHiller UH-12C · Lorena, TXNTSB FTW72DPD18Accident · No injuriesClosedHiller UH12C · Grandview, TXNTSB FTW72DPD09Accident · No injuriesClosedHiller UH12C · Roanoke, TXNTSB FTW71FPD52Accident · No injuriesClosedHiller UH12B · Arlington, TXNTSB FTW70FPD05Accident · No injuriesClosedBell 47G · Fort Worth, TXNTSB FTW70FPA07Accident · No injuriesClosedBell 47D1 · Howe, TXNTSB FTW70FRG10Accident · No injuriesClosedBell 47D1 · Randolph Afb, TXNTSB FTW69F0497Accident · No injuriesClosedBell 47D1 · Powell, TXNTSB FTW69F0491Accident · No injuriesClosedBell 47G · Fort Worth, TXNTSB FTW69F0246Accident · No injuriesClosedBell 47H-1 · Houston, TXNTSB FTW68A0029Accident · No injuriesClosedBell 47D1 · Irving, TXNTSB FTW65A0109Accident · No injuriesClosedHiller UH12B · Mcallen, TXNTSB FTW65A0095Accident · No injuriesClosedHiller UH12B · San Antonio, TXNTSB UNK65X1015Accident · No injuriesClosedHiller UH-12B · Pharr, TXNTSB UNK65X1004Accident · No injuriesClosedHiller UH12A · Austin, TX