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NTSB investigations: Bell 47G-3B-1

13 cases on aircraft the registry lists as Bell 47G-3B-1, where the first occurrence was “In flight collision with terrain/water”. 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

19822026

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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.aircraft_model_code IN ('1181028', '118103A')
      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\" = 230))
  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.

NTSB SEA00LA124Accident · Minor injuriesLimited investigationFinal reportBell 47G · Haines, ORThe pilot's failure to correctly judge his rate of descent and his failure to initiate his level off soon enough to keep the helicopter from impacting the terrain. Factors include hilly terrain near the edge of the field he was spraying.Jul 4, 2000 · N30DP · Substantial damageNTSB LAX99LA049Accident · No injuriesLimited investigationFinal reportBell 47G-3B-1 · Winterhaven, CAThe failure of the pilot to maintain rotor rpm. A factor was his attempt to take off over gross weight.Dec 4, 1998 · N3084G · Substantial damageNTSB FTW98TA099Accident · No injuriesFinal reportBell 47G-3B-1 · Magdalena, NMThe pilot's failure to maintain adequate main rotor rpm. A factor was a lack of recent experience in the type of operation being performed.Jan 15, 1998 · N7901S · Substantial damageNTSB FTW96TA383Accident · No injuriesFinal reportBell 47G-3B-1 · Rangely, COthe pilot's excessive cyclic control input during a low altitude operation, and his failure to maintain altitude/clearance from high vegetation (sage brush). The proximity of high vegetation was a related factor.Sep 10, 1996 · N1335X · Substantial damageNTSB LAX96LA263Accident · No injuriesLimited investigationFinal reportBell 47G3 · Wasco, CAthe pilot's failure to maintain adequate engine rpm during an aerial application flight.Jul 6, 1996 · N154PG · Substantial damageNTSB CHI92LA249Accident · Serious injuriesLimited investigationFinal reportBell 47G-3B-1 · Marshall, INThe pilot's failure to maintain control of the helicopter due to his alcoholic impairment of efficiency and judgement.Aug 21, 1992 · N203SD · DestroyedNTSB NYC92LA159Accident · No injuriesLimited investigationFinal reportBell 47G-3B-1 · West Mifflin, PAA yaw for unknown reason(s) which resulted in the tail rotor contacting the dirt bank and a loss of control. A factor related to the accident was the decision of the pilot to operate in close vicinity to the dirk bank.Aug 12, 1992 · N2070P · Substantial damageNTSB CHI91DER05Accident · No injuriesFinal reportBell 47G3B1 · Lasalle, MNThe pilot's failure to maintain adequate clearance from the terrain. A related factor is the pilot's misjudged altitude above the crop.Jun 11, 1991 · N73284 · Substantial damageNTSB DEN87LA247Accident · Minor injuriesLimited investigationFinal reportBell 47G-3B1 · Grand Junction, COThe plt was practicing some helicopter maneuvers in preparation for taking an FAA flt examination. During one of his maneuvers the helicopter's main rotor blades struck the ground causing the acft to crash. A post accident fire errupted and destroyed the…Sep 30, 1987 · N7806S · DestroyedNTSB FTW87GA083Accident · No injuriesFinal reportBell 47G-3B-1 · Odessa, TXInvestigation reveals the helicopter touched down on the heel of its skids, left skid first, and at a slightly low rotor RPM. The tail boom then moved upward while the main rotor blades flexed downward. The main rotor blades contacted and severed the tail…Mar 21, 1987 · N62462 · Substantial damageNTSB NYC84LA055Accident · No injuriesLimited investigationFinal reportBell 47-G3B1 · Dummerston, VTThe plt initiated a practice autorotation from about 600 ft AGL. Airspeed was about 55 KTS with low m/r RPM due to low gross weight. A moderate flare was initiated in an effort to increase rotor RPM, reducing the airspeed to 40 KTS. However, the application…Dec 18, 1983 · N48316 · Substantial damageNTSB LAX83LUJ05Accident · No injuriesFinal reportBell 47G-3B-1 · Tucson, AZThe single engine land airplane pilot was on a solo instructional flight, practicing landings in the helicopter. He reported that during a landing, he was too fast. While flaring, the tail rotor hit the ground and one of the tail rotor blades separated.…Nov 21, 1982 · N73991 · Substantial damageNTSB NYC82FGM11Accident · 1 fatalFinal reportBell 47G-3B-1 · Kittanning, PAThe helicopter was on a powerline patrol flight with three occupants on board. While proceeding along the powerline with a tailwind, the pilot started to climb over a hill. He stated to the passengers that he was unable to out climb the hill, then circled to…Jun 15, 1982 · N9276Z · Destroyed