Accident: Airbus Helicopters AS350-B3
Mar 28, 2021 · Palmer, AK
NTSB numberWPR21FA143Event id20210328102813
- 5
- Fatalities
- 1
- Serious injuries
- 0
- Minor injuries
- 0
- Uninjured
Probable cause
The pilot’s failure to adequately respond to an encounter with whiteout conditions, which resulted in the helicopter’s collision with terrain. Contributing to the accident was the (1) operator’s inadequate pilot training program and pilot competency checks, which failed to evaluate pilot skill during an encounter with inadvertent instrument meteorological conditions, and (2) the Federal Aviation Administration principal operations inspector’s insufficient oversight of the operator, including their approval of the operator’s pilot training program without ensuring that it met requirements. Contributing to the severity of the surviving passenger’s injuries was the delayed notification of search and rescue organizations.
Source: National Transportation Safety Board. Record last changed Oct 28, 2026, 10:54 UTC.
Aircraft involved
- Aircraft
- Airbus Helicopters AS350-B3
- Registration
- N351SH
- Year built
- 2008
- Category
- Helicopter
- Damage
- Substantial
- Operating rules
- Part 135: commuter and on-demand
- Defining event
- Landing Loss of visual reference
Source: National Transportation Safety Board aviation accident database. Counts only; Voydar holds no names.
This page restates the NTSB's public record. Injury figures are counts; Voydar does not hold or publish the names of anyone involved.