Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
Docket And Docket Items - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
Aviation Accident Data Summary - National Transportation Safety Board: https://app.ntsb.gov/pdf
Renfro's Alaskan Adventures (DBA: Renfro's Alaskan Adventures Inc.): http://registry.faa.gov/N910SP
NTSB Identification: GAA15CA268
Nonscheduled 14 CFR Part 135: Air Taxi & Commuter
Accident occurred Friday, September 18, 2015 in Bethel, AK
Probable Cause Approval Date: 12/17/2015
Aircraft: HELIO H 395, registration: N910SP
Injuries: 4 Uninjured.
NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.
The pilot of the float-equipped airplane stated that after takeoff from a lake, about 30-50 feet above the treetops, the airplane encountered a downdraft and descended uncontrolled into trees and terrain.
The nearest weather reporting station was 7 NM to the north, and reported that the wind was 350 degrees true at 17 knots, with gusts to 23. The airplane sustained substantial damage to the wings and the elevator.
The pilot reported that there were no mechanical failures or anomalies prior to or during the flight that would have prevented normal operation.
The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The pilot's failure to maintain a positive climb rate during takeoff initial climb, resulting in an uncontrolled descent and collision with trees and terrain.