ASN Wikibase Occurrence # 291110
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Date: | Friday 13 March 2015 |
Time: | 18:00 LT |
Type: | Enstrom F28 - C |
Owner/operator: | |
Registration: | N5688N |
MSN: | 495-2 |
Year of manufacture: | 1980 |
Engine model: | Lycoming HIO-360 |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Shelby, Montana -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Private |
Departure airport: | Shelby Airport, MT (SBX/KSBX) |
Destination airport: | Shelby Airport, MT (SBX/KSBX) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The pilot reported that while maneuvering at a low altitude over a machinery yard, he observed a low rotor rpm condition. When he lifted the collective the rpm continued to bleed off, which resulted in the helicopter yawing to the left. The pilot stated that he managed to get the helicopter back under control, but then entered the low rotor rpm condition a second time. Unable to keep the helicopter flying straight, the aircraft impacted up sloping terrain with its left skid, followed by the main rotor blades striking the ground. The helicopter sustained substantial damage due to the impact with terrain.
The pilot reported no preimpact mechanical malfunctions or failures with the helicopter that would have precluded normal operation.
Probable Cause: The pilot's failure to maintain main rotor RPM during a low altitude operation, which resulted in a loss of aircraft control and collision with terrain.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | WPR15CA128 |
Status: | Investigation completed |
Duration: | 1 month |
Download report: | Final report |
|
Sources:
NTSB WPR15CA128
History of this aircraft
Other occurrences involving this aircraft Location
Revision history:
Date/time | Contributor | Updates |
07-Oct-2022 09:36 |
ASN Update Bot |
Added |
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