NTSB CAROL · Event
Event ANC24LA009
Registry · N21FY
FAA Aircraft Registry record.
Make / Model
AIRBUS HELICOPTERS INC AS350B3
Year of manufacture
2024
TCDS
H9EU · AIRBUS HELICOPTERS
Engine
SAFRAN ARRIEL 2D (952 hp)
Seats / Engines
7 seats · 1 engine
Last airworthiness date
20240625
ADS-B equipped
Yes — Mode-S A1B7BD
Registrant of record
H125 AVIATION LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to maintain clearance from snow-covered terrain during the landing approach in flat light conditions.
Factual narrative
The pilot stated that while on approach to land at a remote, snow-covered glacial site, with flat light conditions present, he lost “positive” visual reference, but believed he was in a stable hover. Subsequently, the left landing gear skid contacted the snow-covered terrain, and the helicopter entered a dynamic rollover to the left, resulting in substantial damage to the fuselage, tail boom, and powertrain system. The pilot reported that there were no preaccident mechanical malfunctions or anomalies that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- — Environmental issues-Conditions/weather/phenomena-Light condition-Flat light-Contributed to outcome
- — Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Not attained/maintained
- — Personnel issues-Action/decision-Info processing/decision-Identification/recognition-Pilot
Verbatim from NTSB's published report. Source file
NTSB_2023_ANC24LA009.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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