N363AL

Substantial
None

BELL 206L-3S/N: 51472

Summary

On July 20, 2012, a Bell 206L-3 (N363AL) was involved in an incident near Circle, AK. All 4 people aboard were uninjured. The aircraft sustained substantial damage.

The National Transportation Safety Board determined the probable cause of this incident to be: The pilot's selection of unsuitable terrain for landing.

The pilot elected to land a high skid, turbine-powered helicopter in a burned-out wooded area as part of a vegetation reclamation survey. The area he selected contained several rain-soaked, burned and fallen birch trees, which required that he land perpendicular to and on the fallen trees with the helicopter's skids. The operator reported that after landing atop the uneven, fallen trees, the pilot retarded the engine throttle to flight idle to begin the mandatory 2 minute engine cool down procedure. The helicopter subsequently tipped backwards and slid to the left, with the tail rotor striking a log. The pilot said there were no preimpact mechanical problems with the helicopter. The helicopter sustained substantial damage to the tail boom, tail rotor drive system, and tail rotor gearbox.

This incident is documented in NTSB report ANC12CA077. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N363AL.

Accident Details

Date
Friday, July 20, 2012
NTSB Number
ANC12CA077
Location
Circle, AK
Event ID
20120720X90330
Coordinates
65.946113, -143.972778
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
4
Total Aboard
4

Probable Cause and Findings

The pilot's selection of unsuitable terrain for landing.

Aircraft Information

Registration
Make
BELL
Serial Number
51472
Engine Type
Turbo-shaft
Model / ICAO
206L-3B06T
Aircraft Type
Rotorcraft
No. of Engines
2

Analysis

The pilot elected to land a high skid, turbine-powered helicopter in a burned-out wooded area as part of a vegetation reclamation survey. The area he selected contained several rain-soaked, burned and fallen birch trees, which required that he land perpendicular to and on the fallen trees with the helicopter's skids. The operator reported that after landing atop the uneven, fallen trees, the pilot retarded the engine throttle to flight idle to begin the mandatory 2 minute engine cool down procedure. The helicopter subsequently tipped backwards and slid to the left, with the tail rotor striking a log. The pilot said there were no preimpact mechanical problems with the helicopter. The helicopter sustained substantial damage to the tail boom, tail rotor drive system, and tail rotor gearbox.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# ANC12CA077