# NTSB investigations: Lycoming VO-435 series: In flight collision with object

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB DFW07CA156](https://openairdocs.org/ntsb/DFW07CA156.md): Bell 47G-2A · Mercedes, TX · Accident · Minor injuries · Data collection · Final report · Jul 11, 2007 · N7878 · Substantial damage
  > The pilot's failure to maintain clearance from the power transmission line.
- [NTSB ATL05CA161](https://openairdocs.org/ntsb/ATL05CA161.md): Bell 47G-3B · Summerville, TN · Accident · Minor injuries · Data collection · Final report · Sep 15, 2005 · N8483E · Substantial damage
  > The 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 DEN05CA078](https://openairdocs.org/ntsb/DEN05CA078.md): Bell 47G-5A · Brush, CO · Accident · No injuries · Data collection · Final report · May 19, 2005 · N59403 · Substantial damage
  > The pilot's failure to maintain clearance from the truck trailer during takeoff. A factor contributing to this accident was the truck trailer.
- [NTSB CHI05CA147](https://openairdocs.org/ntsb/CHI05CA147.md): Bell 47G · Twin Brooks, SD · Accident · Minor injuries · Data collection · Final report · May 19, 2005 · N8505F · Substantial damage
  > The 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 CHI04CA180](https://openairdocs.org/ntsb/CHI04CA180.md): Texas Helicopter M-74 · Clear Lake, MN · Accident · No injuries · Data collection · Final report · Jul 9, 2004 · N10009 · Substantial damage
  > The pilot failed to maintain a proper glidepath to the landing zone. A factor was the truck pad.
- [NTSB MIA04FA008](https://openairdocs.org/ntsb/MIA04FA008.md): Bell 47G-2A-1 · Balm, FL · Accident · 2 fatal · Field investigation · Final report · Oct 21, 2003 · N73979 · Destroyed
  > The pilot's intentional buzzing and his failure to maintain altitude/clearance which resulted in an in-flight collision with a building.
- [NTSB LAX03CA285](https://openairdocs.org/ntsb/LAX03CA285.md): Bell 47G-5 · Greenfield, CA · Accident · No injuries · Data collection · Final report · Sep 13, 2003 · N7060J · Substantial damage
  > the pilot's failure to maintain clearance with the wires due to an inadequate visual lookout.
- [NTSB CHI03LA210](https://openairdocs.org/ntsb/CHI03LA210.md): Bell 47G-5 · Cleveland, MN · Accident · Serious injuries · Limited investigation · Final report · Jul 15, 2003 · N7925J · Destroyed
  > The 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 FTW02LA264](https://openairdocs.org/ntsb/FTW02LA264.md): Bell 47G-2 · Edmondson, AR · Accident · 1 fatal · Limited investigation · Final report · Sep 25, 2002 · N5193B · Destroyed
  > The pilot's failure to maintain clearance from the high voltage power lines.
- [NTSB LAX02LA262](https://openairdocs.org/ntsb/LAX02LA262.md): Bell 47G-2 · Oasis, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 25, 2002 · N8478H · Substantial damage
  > the pilot's failure to maintain an adequate visual lookout and clearance with power lines while maneuvering during an aerial application flight.
- [NTSB ATL02LA094](https://openairdocs.org/ntsb/ATL02LA094.md): Bell 47G-5A · La Belle, FL · Accident · No injuries · Limited investigation · Final report · Apr 26, 2002 · N14838 · Substantial damage
  > The 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 LAX00LA280](https://openairdocs.org/ntsb/LAX00LA280.md): Bell 47G-5 · King City, CA · Accident · No injuries · Limited investigation · Final report · Jul 28, 2000 · N7885S · Substantial damage
  > The pilot's intentional flight into adverse weather which resulted in loss of visual reference and flight into power transmission wires and terrain.
- [NTSB LAX00LA124](https://openairdocs.org/ntsb/LAX00LA124.md): Bell 47G · Vacaville, CA · Accident · Minor injuries · Limited investigation · Final report · Mar 12, 2000 · N9763Z · Substantial damage
  > Failure of the pilot to see wires and maintain clearance while flying at a low altitude.
- [NTSB LAX98LA225](https://openairdocs.org/ntsb/LAX98LA225.md): Bell 47G-5 · Salinas, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 7, 1998 · N7914S · Destroyed
  > The failure of the pilot to maintain clearance with the telephone lines.
- [NTSB FTW96LA008](https://openairdocs.org/ntsb/FTW96LA008.md): Bell 47-G2 · Freer, TX · Accident · Minor injuries · Limited investigation · Final report · Oct 5, 1995 · N4423 · Substantial damage
  > the 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 ATL95LA145](https://openairdocs.org/ntsb/ATL95LA145.md): Bell 47G2 · Montrose, GA · Accident · No injuries · Limited investigation · Final report · Jul 31, 1995 · N6145C · Substantial damage
  > The pilot's inadequate preflight planning and visual lookout.
- [NTSB LAX95LA213](https://openairdocs.org/ntsb/LAX95LA213.md): Bell 47-G2A · Bakersfield, CA · Accident · No injuries · Limited investigation · Final report · Jun 18, 1995 · N73260 · Substantial damage
  > the pilot's failure to maintain adequate lateral clearance from the irrigation standpipe while applying chemicals to a field.
- [NTSB LAX94LA199](https://openairdocs.org/ntsb/LAX94LA199.md): Continental Copters Tomcat MK5A · Brawley, CA · Accident · 1 fatal · Limited investigation · Final report · Apr 22, 1994 · N9061T · Destroyed
  > Failure 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 CHI93LA179](https://openairdocs.org/ntsb/CHI93LA179.md): Bell 47 · Berlin, WI · Accident · Minor injuries · Limited investigation · Final report · May 21, 1993 · N8458E · Destroyed
  > The pilot-in-command's failure to see the obstruction.
- [NTSB LAX93LA157](https://openairdocs.org/ntsb/LAX93LA157.md): Bell 47G5 · Greenfield, CA · Accident · Minor injuries · Limited investigation · Final report · Mar 20, 1993 · N7080J · Substantial damage
  > The pilot's failure to maintain an adequate clearance from the power lines while performing an aerial application run.
- [NTSB MIA93LA076](https://openairdocs.org/ntsb/MIA93LA076.md): Huddleston-Bell 47G2 · Rio Grande, PR · Accident · Minor injuries · Limited investigation · Final report · Feb 28, 1993 · N37870 · Substantial damage
  > Poor in-flight planning by the pilot-in-command. Contributing to the accident was the flight's lack of total experience.
- [NTSB FTW91LA166](https://openairdocs.org/ntsb/FTW91LA166.md): Bell 47G-5A · Pearsall, TX · Accident · Minor injuries · Limited investigation · Final report · Sep 26, 1991 · N59424 · Destroyed
  > The pilot's failure to maintain adequate visual lookout for obstacles during operations from a remote site.
- [NTSB CHI91FA294](https://openairdocs.org/ntsb/CHI91FA294.md): Bell-K Copter 47D1 · Laurie, MO · Accident · 3 fatal · Field investigation · Final report · Sep 15, 1991 · N7768 · Destroyed
  > Poor 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 LAX90DVM01](https://openairdocs.org/ntsb/LAX90DVM01.md): Bell 47G-5 · Guadalupe, CA · Accident · No injuries · Final report · Nov 1, 1989 · N4798R · Substantial damage
  > The 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 ATL90DKJ02](https://openairdocs.org/ntsb/ATL90DKJ02.md): Bell 47G2 · Wettumpka, AL · Accident · No injuries · Final report · Oct 27, 1989 · N9025 · Destroyed
  > The pilot's failure to avoid obstacles during aerial application maneuvering.
- [NTSB BFO89LA049](https://openairdocs.org/ntsb/BFO89LA049.md): Bell 47J · Fruitland, MD · Accident · No injuries · Limited investigation · Final report · Jul 2, 1989 · N6760D · Substantial damage
  > Poor 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 SEA89LA098](https://openairdocs.org/ntsb/SEA89LA098.md): Bell 47G-2 · Buena, WA · Accident · Serious injuries · Limited investigation · Final report · Jun 2, 1989 · N41721 · Destroyed
  > The pilot's failure to maintain an adequate visual lookout and clearance to avoid the power lines.
- [NTSB CHI88DEX11](https://openairdocs.org/ntsb/CHI88DEX11.md): Continental Copters MK-5 · Redkey, IN · Accident · 1 fatal · Final report · Aug 10, 1988 · N25561 · Destroyed
  > Physical 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 CHI88DEX08](https://openairdocs.org/ntsb/CHI88DEX08.md): Continental Copters Tomcat MK-6 · Straughn, IN · Accident · No injuries · Final report · Jul 11, 1988 · N9093T · Substantial damage
  > Aerial 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 MKC88LA092](https://openairdocs.org/ntsb/MKC88LA092.md): Bell 47G-2 · Mc Dougal, AR · Accident · No injuries · Limited investigation · Final report · May 19, 1988 · N4690 · Substantial damage
  > The 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 FTW87DPJ09](https://openairdocs.org/ntsb/FTW87DPJ09.md): G&C Helicopters EL Tomcat MK5A · Marlow, OK · Accident · Serious injuries · Final report · Sep 23, 1987 · N17315 · Substantial damage
  > Pilot 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 NYC86FNC05](https://openairdocs.org/ntsb/NYC86FNC05.md): Bell 47G-5 · Walthamer, ME · Accident · Minor injuries · Final report · Jul 12, 1986 · N7861S · Substantial damage
  > While 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 NYC86FGM02](https://openairdocs.org/ntsb/NYC86FGM02.md): Continental Copters OH13H Tomcat Mark 5A · Indiana, PA · Accident · Minor injuries · Final report · May 10, 1986 · N41830 · Substantial damage
  > The 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 LAX86LA231](https://openairdocs.org/ntsb/LAX86LA231.md): Bell 47G-5 · Castaic, CA · Accident · Serious injuries · Limited investigation · Final report · Feb 27, 1986 · N7802S · Substantial damage
  > The helicopter collided with unmarked wires while heading into sun during spraying operation. Plt does not recall seeing or hitting wires.
- [NTSB LAX86FUM01](https://openairdocs.org/ntsb/LAX86FUM01.md): Bell 47 G-5 · Yuma, AZ · Accident · Minor injuries · Final report · Oct 22, 1985 · N7907S · Destroyed
  > The pilot was hovering after a night takeoff and collided with an electrical power line.
- [NTSB LAX85LA344](https://openairdocs.org/ntsb/LAX85LA344.md): Bell 47G-2 · Big Bear City, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 12, 1985 · N2899B · Substantial damage
  > On 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 CHI85LA338](https://openairdocs.org/ntsb/CHI85LA338.md): Bell 47G-5 · Pickett, WI · Accident · No injuries · Limited investigation · Final report · Aug 7, 1985 · N1476W · Substantial damage
  > The 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 MIA85FA016](https://openairdocs.org/ntsb/MIA85FA016.md): Bell 47G-5A · Belle Glade, FL · Accident · No injuries · Field investigation · Final report · Oct 22, 1984 · N59424 · Substantial damage
  > Acft 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 LAX84LA501](https://openairdocs.org/ntsb/LAX84LA501.md): Bell 47G-2 · Borrego Springs, CA · Accident · Minor injuries · Limited investigation · Final report · Sep 29, 1984 · N28895 · Substantial damage
  > After 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 LAX84LA464](https://openairdocs.org/ntsb/LAX84LA464.md): Bell 47G-5 · Watsonville, CA · Accident · No injuries · Limited investigation · Final report · Aug 29, 1984 · N4096G · Substantial damage
  > The 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 CHI84LA263](https://openairdocs.org/ntsb/CHI84LA263.md): Hiller UH 12 D · Deerfield, WI · Accident · Minor injuries · Limited investigation · Final report · Jun 26, 1984 · N62362 · Substantial damage
  > Plt 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 SEA84LA132](https://openairdocs.org/ntsb/SEA84LA132.md): Bell 47G2A · Buena, WA · Accident · No injuries · Limited investigation · Final report · Jun 14, 1984 · N11VH · Substantial damage
  > Main 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 MKC83FA114](https://openairdocs.org/ntsb/MKC83FA114.md): Hiller UH-12E · Troy, KS · Accident · Serious injuries · Field investigation · Final report · May 24, 1983 · N3GK · Destroyed
  > The 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 NYC83FA106](https://openairdocs.org/ntsb/NYC83FA106.md): Bell 47G-2 · Waymart, PA · Accident · 2 fatal · Field investigation · Final report · Apr 30, 1983 · N2829B · Destroyed
  > This 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 MIA83LA069](https://openairdocs.org/ntsb/MIA83LA069.md): Bell 47G2 · Riverview, FL · Accident · Minor injuries · Limited investigation · Final report · Jan 29, 1983 · N74822 · Substantial damage
  > According 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 NYC82DA124](https://openairdocs.org/ntsb/NYC82DA124.md): Continental EL Tomcat MK5A · Imlaystown, NJ · Accident · No injuries · Final report · Jun 15, 1982 · N9062T · Substantial damage
  > During 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 LAX82DA186](https://openairdocs.org/ntsb/LAX82DA186.md): Bell 47G2 · Santa Maria, CA · Accident · No injuries · Final report · May 21, 1982 · N130V · Substantial damage
  > The 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 LAX82DA135](https://openairdocs.org/ntsb/LAX82DA135.md): Bell 47G-2 · Stockton, CA · Accident · No injuries · Final report · Apr 15, 1982 · N2879B · Destroyed
  > The 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,…

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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
```

This list as a web page: https://openairdocs.org/ntsb?engine=41525&occurrence=220

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.