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ASN Wikibase Occurrence # 150962
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Type:Silhouette image of generic B47G model; specific model in this crash may look slightly different    
Bell 47G-2
Registration: N3755Z
MSN: 1698
Fatalities:Fatalities: 1 / Occupants: 2
Aircraft damage: Substantial
Location:Tanner\'s Swamp, Walkerville, Oceana County, MI -   United States of America
Phase: Unknown
Departure airport:Hart, MI
Destination airport:Hart, MI
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The passenger reported that the pilot was maneuvering the helicopter over an area of tree-covered marsh at a low altitude when the helicopter entered a descent, collided with trees, and impacted the ground on its left side. An examination of the wreckage found damage consistent with the main rotor blades being driven by the engine when they contacted the trees. Although the passenger reported hearing a loud sound before the helicopter started descending, postaccident examination of the helicopter revealed no evidence of preimpact mechanical malfunction or failure that would have precluded normal operation. The circumstances of the accident are consistent with the pilot failing to maintain altitude while maneuvering at low airspeed and low altitude, which resulted in the helicopter descending into trees.
Probable Cause: The pilot's failure to maintain altitude while maneuvering, which resulted in a collision with trees. Contributing to the accident was the pilot's decision to fly at a low altitude, which did not provide enough margin to recover from the descent.


FAA register:

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 2 months
Download report: Final report
Other occurrences involving this aircraft

11 Jan 2019 N3755Z Private 0 Belen, NM sub
Loss of control.


Revision history:

02-Dec-2012 08:28 Alpine Flight Added
02-Dec-2012 10:16 Geno Updated [Aircraft type, Registration, Cn, Total occupants, Location, Phase, Departure airport, Destination airport, Source, Narrative]
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
28-Nov-2017 14:00 ASN Update Bot Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative]

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