ASN Wikibase Occurrence # 288364
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Date: | Sunday 4 July 2010 |
Time: | 16:45 LT |
Type: | Brantly B-2B |
Owner/operator: | |
Registration: | N9011R |
MSN: | 2013 |
Total airframe hrs: | 602 hours |
Engine model: | Lycoming IVO-360 |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | East Troy, Wisconsin -
United States of America
|
Phase: | Landing |
Nature: | Test |
Departure airport: | East Troy, WI (57C) |
Destination airport: | East Troy, WI (57C) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The helicopter pilot performed a straight-in autorotation to runway 18 for a rotor rpm check. The engine rpm began to rapidly increase and the pilot rolled the throttle completely off and lowered collective. He reported that the left skid was coming off the ground and he applied full left cyclic and full down collective. The aircraft teetered and continued to roll right. The pilot stated that the helicopter had an articulated landing gear system. He said that the struts travel approximately seven to eight inches and 'if only one side retracts it causes a ‘rolling moment'.†About 22 minutes before the accident, the recorded winds about seven nautical miles and 155 degrees from the accident site were 200 degrees at 14 knots with gusts to 32 knots. An examination of the accident helicopter's controls and landing gear revealed no preexisting anomalies.
Probable Cause: The pilot's failure to maintain control during landing.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CEN10CA371 |
Status: | Investigation completed |
Duration: | 5 months |
Download report: | Final report |
|
Sources:
NTSB CEN10CA371
Location
Revision history:
Date/time | Contributor | Updates |
04-Oct-2022 21:40 |
ASN Update Bot |
Added |
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