NTSB investigations: Allison 250-C20 series, FL
21 cases on aircraft whose registry engine model is Allison 250-C20 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
| 1975 | 1 |
|---|---|
| 1994 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 1999 | 2 |
| 2001 | 1 |
| 2003 | 2 |
| 2004 | 3 |
| 2005 | 1 |
| 2006 | 1 |
| 2008 | 1 |
| 2015 | 1 |
| 2017 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2024 | 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.\"eventStateOrRegion\" = 'FL' 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 ('03020'))
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" = 'FL' 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 ('03020'))
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 ERA24LA215Accident · No injuriesClass 4 · LimitedFinal reportHughes 369 · Crestview, FLThe pilot’s improper flare, which resulted in a hard landing and the main rotor blades contacting the tail boom.NTSB ERA22LA206Accident · Minor injuriesClass 4 · LimitedFinal reportBell 206 · Lake Apopka, FLA collision with water following a loss of visual reference to the water surface due to sun glare.NTSB ERA21LA126Accident · No injuriesClass 3 · LimitedFinal reportBell 206 · Pahokee, FLA loss of main rotor rpm for reasons that could not be determined, which resulted in an autorotation and a subsequent hard landing and rollover.NTSB ERA17TA170Accident · Serious injuriesFinal reportBell 206 · Orange Springs, FLThe pilot's failure to maintain adequate clearance between the helicopter's skid and the firefighting bucket and suspension cable, which resulted in the cable becoming entangled on the landing skid and a subsequent loss of helicopter control.NTSB ERA15LA337Accident · Serious injuriesLimited investigationFinal reportMcdonnell Douglas Helicopter 369E · New Smyrna Beach, FLThe pilot’s inadequate visual lookout and failure to maintain clearance from trees while maneuvering at low altitude.NTSB ERA09LA047Accident · Minor injuriesLimited investigationFinal reportBell 206B · Boynton Beach, FLA loss of engine power due to an undertorqued air line fitting to the fuel control.NTSB ANC06CA122Accident · No injuriesData collectionFinal reportBell 206B · Orlando, FLThe pilot's failure to refuel the helicopter prior to the accident flight, which resulted in a loss of engine power during cruise flight, and a hard landing.NTSB MIA05LA095Accident · Serious injuriesLimited investigationFinal reportBell 206B · Coral Springs, FLThe pilot encountered dynamic rollover while lifting off from an area in the everglades with 6-7 foot tall sawgrass nearby.NTSB MIA05FA008Accident · 3 fatalField investigationFinal reportEurocopter Deutschland BO-105 CBS5 · Santa Rosa Bch, FLThe pilot's spatial disorientation and in-flight loss of control of the helicopter after encountering night instrument meteorological conditions resulting in collision with water during the resultant uncontrolled descent. A factor in the accident was the…NTSB MIA04LA123Accident · No injuriesLimited investigationFinal reportBell 206B3 · Panama City, FLInadequate maintenance inspection resulting in the partial loss of engine power due to a loose pneumatic line on the governor and ditching of the helicopter.NTSB MIA04LA121Accident · Minor injuriesLimited investigationFinal reportMcDonnell Douglas 369E · Ochopee, FLThe pilot's loss of control in flight for undetermined reasons, which resulted in an uncontrolled descent, and subsequent impact with trees and the terrain.NTSB MIA03TA152Accident · No injuriesFinal reportBell BHT-206-B3 · Fort Myers, FLThe pilot's failure to adequately clear the right skid of obstructions which resulted in a dynamic rollover to the right during takeoff and damage to the helicopter.NTSB MIA03FA120Accident · Minor injuriesField investigationFinal reportAerospatiale AS355F1 · Madison, FLThe pilot in command's diverted attention and loss of control while attempting to takeoff, which resulted in the main rotor blades being dragged, and the helicopter rolling over.NTSB MIA01TA194Accident · Minor injuriesFinal reportBell 206B-III · Jacksonville, FLthe pilot's failure to recognize and correct for unanticipated right yaw/loss of tail rotor effectiveness (LTE) during an approach to hover at a low altitude, which resulted in a loss of control and the helicopter descending and colliding with a house and the…NTSB MIA99FA158Accident · 1 fatalField investigationFinal reportHughes 369E · Intercession, FLThe pilot's improper fuel management that resulted in fuel exhaustion and a total loss of engine power.NTSB MIA99LA111Accident · No injuriesLimited investigationFinal reportFairchild Hiller FH-1100 · Zephyrhills, FLThe student pilot's improper use of flight controls (cyclic and collective) during a takeoff to a hover. This resulted in the helicopter encountering dynamic rollover and rolling over on its right side.NTSB ATL97LA086Accident · Serious injuriesLimited investigationFinal reportMcDonnell Douglas MDHC-369E · Okahumpka, FLThe failure of the crewmember to use the necessary safety equipment, and his subsequent fall from an elevated platform. A factor was the crewmember's distraction with an animal.NTSB MIA96TA236Accident · No injuriesFinal reportBell 206B III · Flamingo, FLthe wire strike protection guide became entangled in a mangrove branch which resulted in helicopter control not being maintained.NTSB MIA95LA078Accident · No injuriesLimited investigationFinal reportHughes 500C · Key Largo, FLThe pilot's misjudgment of altitude and failure to apply collective cushioning pitch during an autorotation resulting in a hard landing. Contributing to the accident was a total loss of engine power due to a loose coupling B-nut on the pneumatic fuel control…NTSB MIA94LA144Accident · Minor injuriesLimited investigationFinal reportBell 206B · St. Petersburg, FLThe failure of the number five bearing, shaft, or thomas coupling for undetermined reasons. Contributing to the accident was the pilot-in-command's delayed response in conducting the emergency procedure by not reducing the throttle to idle position, and…NTSB MIA76FKT32Accident · Serious injuriesClosedBell 206B · Delray Beach, FL