NTSB investigations: Lycoming VO-435 series
48 cases on aircraft whose registry engine model is Lycoming VO-435 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
| 1982 | 3 |
|---|---|
| 1983 | 3 |
| 1984 | 5 |
| 1985 | 3 |
| 1986 | 3 |
| 1987 | 1 |
| 1988 | 3 |
| 1989 | 4 |
| 1991 | 2 |
| 1993 | 3 |
| 1994 | 1 |
| 1995 | 3 |
| 1998 | 1 |
| 2000 | 2 |
| 2002 | 3 |
| 2003 | 3 |
| 2004 | 1 |
| 2005 | 3 |
| 2007 | 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 ('41525')
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 ('41525')
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 DFW07CA156Accident · Minor injuriesData collectionFinal reportBell 47G-2A · Mercedes, TXThe pilot's failure to maintain clearance from the power transmission line.NTSB ATL05CA161Accident · Minor injuriesData collectionFinal reportBell 47G-3B · Summerville, TNThe pilot's failure to maintain adequate clearance and adequate visual lookout during take-off which resulted in an in-flight collision with a tree and roll over.NTSB DEN05CA078Accident · No injuriesData collectionFinal reportBell 47G-5A · Brush, COThe pilot's failure to maintain clearance from the truck trailer during takeoff. A factor contributing to this accident was the truck trailer.NTSB CHI05CA147Accident · Minor injuriesData collectionFinal reportBell 47G · Twin Brooks, SDThe pilot's inadequate lookout and his failure to maintain clearance with the power lines. A factor was the low altitude at which the helicopter was operating.NTSB CHI04CA180Accident · No injuriesData collectionFinal reportTexas Helicopter M-74 · Clear Lake, MNThe pilot failed to maintain a proper glidepath to the landing zone. A factor was the truck pad.NTSB MIA04FA008Accident · 2 fatalField investigationFinal reportBell 47G-2A-1 · Balm, FLThe pilot's intentional buzzing and his failure to maintain altitude/clearance which resulted in an in-flight collision with a building.NTSB LAX03CA285Accident · No injuriesData collectionFinal reportBell 47G-5 · Greenfield, CAthe pilot's failure to maintain clearance with the wires due to an inadequate visual lookout.NTSB CHI03LA210Accident · Serious injuriesLimited investigationFinal reportBell 47G-5 · Cleveland, MNThe pilot's inadequate visual lookout and low altitude flight when he failed to maintain altitude/clearance from the transmission wire. A factor contributing to the accident was the transmission wire.NTSB FTW02LA264Accident · 1 fatalLimited investigationFinal reportBell 47G-2 · Edmondson, ARThe pilot's failure to maintain clearance from the high voltage power lines.NTSB LAX02LA262Accident · Serious injuriesLimited investigationFinal reportBell 47G-2 · Oasis, CAthe pilot's failure to maintain an adequate visual lookout and clearance with power lines while maneuvering during an aerial application flight.NTSB ATL02LA094Accident · No injuriesLimited investigationFinal reportBell 47G-5A · La Belle, FLThe pilot's failure to maintain clearance of a tree while maneuvering, which resulted in an in-flight collision with the tree and subsequent uncontrolled descent and collision with terrain.NTSB LAX00LA280Accident · No injuriesLimited investigationFinal reportBell 47G-5 · King City, CAThe pilot's intentional flight into adverse weather which resulted in loss of visual reference and flight into power transmission wires and terrain.NTSB LAX00LA124Accident · Minor injuriesLimited investigationFinal reportBell 47G · Vacaville, CAFailure of the pilot to see wires and maintain clearance while flying at a low altitude.NTSB LAX98LA225Accident · Minor injuriesLimited investigationFinal reportBell 47G-5 · Salinas, CAThe failure of the pilot to maintain clearance with the telephone lines.NTSB FTW96LA008Accident · Minor injuriesLimited investigationFinal reportBell 47-G2 · Freer, TXthe pilot's failure to maintain clearance from the power lines due to his improper takeoff technique. A factor was the helicopter induced blowing dust which impaired the pilot's visibility.NTSB ATL95LA145Accident · No injuriesLimited investigationFinal reportBell 47G2 · Montrose, GAThe pilot's inadequate preflight planning and visual lookout.NTSB LAX95LA213Accident · No injuriesLimited investigationFinal reportBell 47-G2A · Bakersfield, CAthe pilot's failure to maintain adequate lateral clearance from the irrigation standpipe while applying chemicals to a field.NTSB LAX94LA199Accident · 1 fatalLimited investigationFinal reportContinental Copters Tomcat MK5A · Brawley, CAFailure of the pilot to maintain sufficient altitude, while maneuvering to land after completing aerial application. Factors related to the accident were: darkness and the lack of visual cues for the pilot to detect the obstruction (power line).NTSB CHI93LA179Accident · Minor injuriesLimited investigationFinal reportBell 47 · Berlin, WIThe pilot-in-command's failure to see the obstruction.NTSB LAX93LA157Accident · Minor injuriesLimited investigationFinal reportBell 47G5 · Greenfield, CAThe pilot's failure to maintain an adequate clearance from the power lines while performing an aerial application run.NTSB MIA93LA076Accident · Minor injuriesLimited investigationFinal reportHuddleston-Bell 47G2 · Rio Grande, PRPoor in-flight planning by the pilot-in-command. Contributing to the accident was the flight's lack of total experience.NTSB FTW91LA166Accident · Minor injuriesLimited investigationFinal reportBell 47G-5A · Pearsall, TXThe pilot's failure to maintain adequate visual lookout for obstacles during operations from a remote site.NTSB CHI91FA294Accident · 3 fatalField investigationFinal reportBell-K Copter 47D1 · Laurie, MOPoor judgement of the pilot, due to impairment from consumption of alcoholic beverage before flight, his intentional buzzing, and his inadequate visual lookout (failure to see-and-avoid power lines).NTSB LAX90DVM01Accident · No injuriesFinal reportBell 47G-5 · Guadalupe, CAThe pilot's failure to maintain sufficient clearance allowing the aircraft to collide with a wooden power pole. Contributing to the accident was the sunglare which inhibited the pilot's vision.NTSB ATL90DKJ02Accident · No injuriesFinal reportBell 47G2 · Wettumpka, ALThe pilot's failure to avoid obstacles during aerial application maneuvering.NTSB BFO89LA049Accident · No injuriesLimited investigationFinal reportBell 47J · Fruitland, MDPoor judgement of the pilot by flying, while physically impaired by alcohol, and his misjudgement of clearance between the helicopter and the structure. The dark night and object (structure) were considered to be contributing factors.NTSB SEA89LA098Accident · Serious injuriesLimited investigationFinal reportBell 47G-2 · Buena, WAThe pilot's failure to maintain an adequate visual lookout and clearance to avoid the power lines.NTSB CHI88DEX11Accident · 1 fatalFinal reportContinental Copters MK-5 · Redkey, INPhysical impairment of the pilot due to drugs which resulted in a misjudged approach and subsequent contact with trees during the approach to an aerial application swath run.NTSB CHI88DEX08Accident · No injuriesFinal reportContinental Copters Tomcat MK-6 · Straughn, INAerial application helicopter struck power lines in field on first swath run. This was the first time the pilot had sprayed this field. Prior to spraying the field he questioned the farmer regarding power lines or other obstructions. The farmer replied that…NTSB MKC88LA092Accident · No injuriesLimited investigationFinal reportBell 47G-2 · Mc Dougal, ARThe pilot stated that he had just begun the spraying of a rice field when one of the spray nozzles malfunctioned. As he was attempting to set the helicopter down on the ground, to work on the nozzle, the main rotor blades struck a tree. The main rotor blades…NTSB FTW87DPJ09Accident · Serious injuriesFinal reportG&C Helicopters EL Tomcat MK5A · Marlow, OKPilot failed to see and avoid tree at end of swath run during a spraying operation. After contacting the tree, the helicopter started to spin and struck the ground in an approximate 90 degree right bank and started to burn.NTSB NYC86FNC05Accident · Minor injuriesFinal reportBell 47G-5 · Walthamer, MEWhile on a spray run the pilot of the Bell 47 was blinded by the sun as he was turning. The aircraft struck power lines, control was lost and the helicopter crashed.NTSB NYC86FGM02Accident · Minor injuriesFinal reportContinental Copters OH13H Tomcat Mark 5A · Indiana, PAThe acft collided with wires during a spray run and crashed out of control. The plt tried to fly under the wires that were sighted too late to clear. During his survey of the field the plt had failed to see the wires that were struck. The collision broke off…NTSB LAX86LA231Accident · Serious injuriesLimited investigationFinal reportBell 47G-5 · Castaic, CAThe helicopter collided with unmarked wires while heading into sun during spraying operation. Plt does not recall seeing or hitting wires.NTSB LAX86FUM01Accident · Minor injuriesFinal reportBell 47 G-5 · Yuma, AZThe pilot was hovering after a night takeoff and collided with an electrical power line.NTSB LAX85LA344Accident · Minor injuriesLimited investigationFinal reportBell 47G-2 · Big Bear City, CAOn August 12, 1985, a Bell 47G2 helicopter collided with a yucca tree and rolled over during a landing near Big Bear City, CA. The acft sustained substantial damage and the plt and his two passengers were not injured. The purpose of the flight was a aerial…NTSB CHI85LA338Accident · No injuriesLimited investigationFinal reportBell 47G-5 · Pickett, WIThe fld where this accident occurred had been sprayed one week prior to the accident by a fixed-wing acft at an alt of 20 ft. no wires were noted to be a hazard at that time. On the day of the accident the plt of the helicopter was talking to a spotter on the…NTSB MIA85FA016Accident · No injuriesField investigationFinal reportBell 47G-5A · Belle Glade, FLAcft wad parked with 3 ft clearance between main rotor and corner of hangar. Plt stated that on lift off a gust of wind blew acft toward hangar. Main rotor blades made contact. Ground crewman injured by flying debris.NTSB LAX84LA501Accident · Minor injuriesLimited investigationFinal reportBell 47G-2 · Borrego Springs, CAAfter landing, the plt hover taxied to the fuel pumps to refuel. While maneuvering to touch down at the pumps, the main rotor blade struck a 10 to 12 ft high vent pipe. The plt reported that the vent pipes were painted black & were not readily apparent with…NTSB LAX84LA464Accident · No injuriesLimited investigationFinal reportBell 47G-5 · Watsonville, CAThe plt maneuvered during an aerial application flt to avoid high tension wires and collided with lower telephone lines. The plt said the winds were gusty at the time of the accident.NTSB CHI84LA263Accident · Minor injuriesLimited investigationFinal reportHiller UH 12 D · Deerfield, WIPlt was aware of pwr lines which crossed the field over which he was performing a calibration test. Plt stated that because of sun glare visual contact with the wires was lost. The acft contacted the wires.NTSB SEA84LA132Accident · No injuriesLimited investigationFinal reportBell 47G2A · Buena, WAMain rotor blades contacted a wind machine during an aerial application flt. Helicopter settled into trees and rolled over. Plt said he knew the machine was there but had forgotten.NTSB MKC83FA114Accident · Serious injuriesField investigationFinal reportHiller UH-12E · Troy, KSThe acft collided with a powerline while the pilot was locating a field to spray at a later date. The pilot saw telephone lines and flew over them but hit the powerlines which were 20 feet higher. The skids caught the wires and the helicopter nosed down,…NTSB NYC83FA106Accident · 2 fatalField investigationFinal reportBell 47G-2 · Waymart, PAThis was an introductory instructional flt. Witnesses observed the helicopter flying straight & level prior to the accident. The helicopter had impacted a 60-FT tree at about the 40-FT level. No preimpact failure/falfunction of either the airframe or engine…NTSB MIA83LA069Accident · Minor injuriesLimited investigationFinal reportBell 47G2 · Riverview, FLAccording to the pilot he lost control of the acft after a bird hit him on the right temple while flying at about 15 feet above the water. The acft was traveling at about 50 mph when the bird flew in through left door opening. The pilot lost control of the…NTSB NYC82DA124Accident · No injuriesFinal reportContinental EL Tomcat MK5A · Imlaystown, NJDuring a swath run, a bird flew into the windshield and the pilot rolled the helicopter to the right to avoid further bird strikes. The right spray boom contacted the crops and pulled the aircraft into the ground resulting in substantial damage.NTSB LAX82DA186Accident · No injuriesFinal reportBell 47G2 · Santa Maria, CAThe helicopter contacted the platform with a landing skid and rolled over during an attempted takeoff. As the helicopterlifted off of a truck mounted platform a skid became fouled by the truck and a dynamic roll-over occurred.NTSB LAX82DA135Accident · No injuriesFinal reportBell 47G-2 · Stockton, CAThe pilot landed to pick up a flagger and take him to the end of the field. The landing was made facing north on a north-south driveway. An overhead line was located along the east side of the driveway. During takeoff, the pilot moved laterally to the west,…