- Date
- April 26, 1986, 18:45 local (22:45 UTC)
- Place
- Port Heiden, AK
- Injuries
- 2 minor
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N64ATInterstate 15B2
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19860426016119A
- Case key
- 4656
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
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 - loose gravel/sandyCause
Aircraft handling - not maintainedCause
Terrain condition - rough/unevenCause
Wind information - performedCause
Terrain condition - sand barCause
Directional control - not maintainedCause
Nose over
Analysis
The pilot stated that during the takeoff roll he lost control of the aircraft causing the plane to nose over on its back.
Aircraft
- Registration
- N64AT
- Reported as
- Interstate 15B2
- Category
- Airplane
- Serial number
- 1015
- Airframe hours
- 725
- Engine
- Lycoming 150, 150 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- John Sparage
- Airworthiness certificate
- Standard, Utility
- Last inspection
- Annual · August 25, 1985 · 64 hours before
- Airport
- Port Heiden
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
- Certificate
- Commercial
- Airplane ratings
- Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Front
- Flight hours
- 1,305 total · 525 in this make and model · 1,305 as pilot in command · 53 in the last 90 days · 20 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 270° at 20 knots, gusting 25
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 30 °F, dew point 25 °F
- Altimeter
- 29.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N64AT · 2
Matched to the same aircraft by N-number and date.
NTSB ANC93FA172Accident · Serious injuriesField investigationFinal reportTalkeetna River, AKThe pilot in command's improper preflight planning. Factors in the accident were: the rough/uneven takeoff location, the excess weight of the airplane, the inadequate design of the add-on tank by the manufacturer affecting the weight and balance, and the…NTSB ANC83LA083Accident · No injuriesLimited investigationFinal reportPalmer, AKThe acft nosed over while taxiing for takeoff on a sand bar. The plt stated that he was demonstrating handling characteristics of the acft on sand and gravel to his passenger. The acft passed over a large hummock and settled into soft sand where it nosed…