ASN Wikibase Occurrence # 296099
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Date: | Sunday 23 March 2003 |
Time: | 12:15 LT |
Type: | Bell 47D |
Owner/operator: | Millenium Helicopters, Inc. |
Registration: | N74120 |
MSN: | WH5005 |
Year of manufacture: | 1949 |
Engine model: | Franklin 6V4-178-B32 |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Princetown, New York -
United States of America
|
Phase: | Unknown |
Nature: | Training |
Departure airport: | Princetown, NY |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The instructor had the student conduct approximately 18 takeoff and landings. Each was executed to and from a hover, and the student had difficulty maintaining rotor RPM during the maneuvers. The helicopter then departed, and flew to a private heliport. The student completed an "approach to the ground," and the instructor asked him to practice hover taxiing, before terminating the flight. As the student started to apply collective, the instructor looked inside to check rotor RPM. When he looked back outside, the helicopter was in a nose high, right side low attitude. The instructor lowered the collective and applied full left cyclic, but the roll to the right continued. The main-rotor blades impacted the ground, and the helicopter came to rest. The instructor added that during all the flights and accident sequence, he did not experience any mechanical problems with the helicopter. Examination of the wreckage revealed that the rear of the right skid was in an area of mud.
Probable Cause: The student's failure to maintain control while executing a takeoff to a hover, and the flight instructor's delayed remedial action. A factor in the accident was the muddy ground.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | NYC03LA069 |
Status: | Investigation completed |
Duration: | 9 months |
Download report: | Final report |
|
Sources:
NTSB NYC03LA069
Revision history:
Date/time | Contributor | Updates |
13-Oct-2022 16:30 |
ASN Update Bot |
Added |
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