- Date
- September 11, 1990, 16:00 local (Sep 12, 1990, 00:00 UTC)
- Place
- Sparrevohn, AK
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N2460APiper PA-18
- Weather
- Visual (VMC) · Day
- Status
- Completed · report October 20, 1992
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19900911044069A
- Case key
- 5450
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-in-command's failure to maintain directional control of the airplane during the takeoff roll. The rough/uneven gravel bar was a related factor.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Loss of control - on ground/water
Terrain condition - rough/unevenFactor
Directional control - not maintainedCause
On ground/water encounter with terrain/water
Analysis
During the takeoff roll on a gravel bar, the pilot lost directional control of the airplane. The airplane swerved to the right and slid over a 100 foot drop, tail first.
Aircraft
- Registration
- N2460A
- Reported as
- Piper PA-18
- Category
- Airplane
- Serial number
- 181945
- Airframe hours
- 4,250
- Engine
- Lycoming O-320, 160 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Wayne Kubat
- Registered owner
- Unknown
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · March 1, 1990 · 320 hours before
- Departed
- 230 · Port Alsworth, AK
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 36
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, Valid Medical--no waivers/lim.
- Seat
- Front
- Flight hours
- 1,970 total · 1,850 in this make and model · 1,970 as pilot in command · 120 in the last 90 days · 42 in the last 30 days · 4 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 230° at 15 knots, gusting 20
- Visibility
- 50 statute miles
- Lowest ceiling
- 4,000 ft overcast
- Temperature
- 55 °F, dew point 39 °F
- Altimeter
- 30.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.