NTSB CAROL · Event
Event ANC22LA056
Registry · N4040W
FAA Aircraft Registry record.
Make / Model
DEHAVILLAND BEAVER DHC-2 MK.1
Year of manufacture
1957 · 65 years old at event
Engine
P&W R-985 SERIES (450 hp)
Seats / Engines
8 seats · 1 engine
ADS-B equipped
Yes — Mode-S A4BDEA
Registrant of record
SOURDOUGH AIR SERVICE INC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to maintain control of the airplane during taxi operations on a riverbank with shallow water.
Factual narrative
The pilot reported that after landing on a river with low water levels, the left float dug into the shallow water, and the airplane turned hard left into the riverbank. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane 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).
- — Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
- — Personnel issues-Psychological-Attention/monitoring-Monitoring environment-Pilot
Verbatim from NTSB's published report. Source file
NTSB_2022_ANC22LA056.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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