ASN Wikibase Occurrence # 356104
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Date: | Thursday 27 March 1997 |
Time: | 16:15 LT |
Type: | Enstrom F-28C |
Owner/operator: | Steve Bates |
Registration: | N294SB |
MSN: | 336 |
Total airframe hrs: | 1312 hours |
Engine model: | Lycoming HIO-360-E1AD |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Sacaton, AZ -
United States of America
|
Phase: | Initial climb |
Nature: | Training |
Departure airport: | Chandler, AZ (P10) |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:During a confined area takeoff, the aircraft passed through effective translational lift (ETL) when the pilot noticed a reduction in engine noise. Both the engine and rotor rpm needles were still joined at a position just below the bottom of the green arc. He lowered collective and rolled the throttle full on without obtaining an increase in engine rpm. He initiated a straight-in autorotation, and during the ground slide, a skid contacted a rock and the tail boom yawed. The tail boom then struck a tree and separated from the aircraft. The main rotor drive belt was disconnected and a run-up check was performed the engine. The engine ran throughout the normal operating range and magneto checks were within tolerances. The engine air cleaner was removed and exhibited trapped dirt and grass.
Probable Cause: the pilot's improper use of the collective by not maintaining rotor rpm during takeoff from a confined area.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | LAX97LA133 |
Status: | Investigation completed |
Duration: | 6 months |
Download report: | Final report |
|
Sources:
NTSB LAX97LA133
Revision history:
Date/time | Contributor | Updates |
12-Mar-2024 19:04 |
ASN Update Bot |
Added |
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