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ASN Wikibase Occurrence # 138551
Last updated: 15 September 2021
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Type:Silhouette image of generic B06 model; specific model in this crash may look slightly different
Bell 206B JetRanger III
Registration: N3181J
MSN: 3771
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Location:Spicewood, about seven miles from Marble Falls, TX -   United States of America
Phase: Initial climb
Departure airport:Spicewood, TX (88R)
Destination airport:Spicewood, TX (88R)
Investigating agency: NTSB
While maneuvering the helicopter at an altitude of about 400 feet above ground level, the pilot heard the low rotor aural warning in his headset and observed that the rotor speed gauge was reading about 80 percent and decreasing. He lowered the collective, initiated a left turn, and began an autorotative descent to hilly terrain that contained trees and power lines. During the autorotation, the pilot attempted to avoid the power lines, and the helicopter impacted terrain. Although the pilot reported that he believed the engine lost power, a postaccident examination of the helicopter revealed no evidence of any preimpact mechanical failures or malfunctions. Additionally, the helicopterís engine was run in a test cell for 1 hour 50 minutes with no anomalies detected.
Probable Cause: The pilot did not maintain adequate rotor rpm during a low-altitude maneuvering flight.


FAA register: (photo)

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 6 months
Download report: Final report

Revision history:

15-Sep-2011 11:13 gerard57 Added
15-Sep-2011 14:10 RobertMB Updated [Time, Aircraft type, Registration, Cn, Operator, Location, Phase, Departure airport, Source, Narrative]
15-Sep-2011 14:14 Geno Updated [Aircraft type, Registration, Cn, Operator, Location, Departure airport, Source]
15-Sep-2011 15:32 RobertMB Updated [Aircraft type, Operator, Location, Phase, Source, Narrative]
15-Sep-2011 15:33 RobertMB Updated [Time, Operator]
30-Sep-2016 16:27 Aerossurance Updated [Time, Operator, Source, Narrative]
21-Dec-2016 19:26 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
27-Nov-2017 17:12 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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