- Date
- August 3, 2022, 15:45 local (23:45 UTC)
- Place
- Kokhanok, AK · along shoreline of lake
- Injuries
- 7 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N65223Dehavilland Beaver U-6A
- Defining event
- Takeoff: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Alaska Regional Office
- Case key
- 106110
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's failure to maintain directional control of the airplane during takeoff operations.
Findings · 3
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The operator reported that the pilot did not taxi back far enough from the shoreline before attempting to takeoff from the water. The pilot was planning to takeoff towards the shoreline and then make a right turn and follow the edge of the shoreline. The pilot did not have enough directional control to make the right turn to follow the shoreline and subsequently the float plane ran aground. The airplane sustained substantial damage to the left wing and fuselage. The operator reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Aircraft
- Registration
- N65223
- Reported as
- Dehavilland Beaver U-6A
- Category
- Airplane
- Serial number
- 55-4602
- Built
- 1955
- Airframe hours
- 10,559.2
- Engine
- Pratt & Whitney 985, 450 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Other work use · Part 91
- Operator
- Rainbow River Lodge Aviation LLC
- Registered owner
- Rainbow River Lodge Aviation LLC
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · July 20, 2022
- Departed
- PAIL · Iliamna, AK
- Flight plan
- Company VFR
- Equipment
- None
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 68
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Multi-engine land, Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, With waivers/limitations
- Last flight review
- May 31, 2021
- Seat
- Left
- Flight hours
- 8,225 total · 4,530 in this make and model · 114 in the last 90 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 260° at 10 knots
- Visibility
- 20 statute miles
- Lowest ceiling
- 5,000 ft broken
- Observed at
- PAIL, 16 nm away
- METAR
- TAF PAIL 032334Z 0400/0424 10015G23KT P6SM -RA FEW025 OVC050 TEMPO 0403/0407 OVC025 FM040800 09013G22KT P6SM -RA OVC050 FM041300 08012G20KT P6SM OVC050 FM041700 06010KT P6SM OVC060=
Docket · 2
The files NTSB released with the investigation on January 30, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 11.4 MB in all.
Other investigations on N65223 · 2
Matched to the same aircraft by N-number and date.