- Date
- May 1, 1996, 12:00 local (20:00 UTC)
- Place
- Dillingham, AK
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Taxi
- Aircraft
- N1828CCessna 170
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 1, 1997
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19960501009299A
- Case key
- 2837
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
rotation (slippage) of the tire on the rim, and shearing of the valve stem, which allowed the rim to contact the ground and then separate.
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.
Analysis
After completing a fish spotting flight, the pilot landed the airplane at the Dillingham Airport. While taxiing back from landing, the pilot applied the brakes. During the deceleration, a tire rotated on the rim shearing the valve stem. The tire and portions of the rim separated from the landing gear and the airplane's wingtip dragged the ground. The airplane was equipped with 8:50 size tires.
Factual narrative
On May 1, 1996, at 1200 Alaska daylight time, a wheel equipped Cessna 170 airplane, N1828C, registered to and operated by the pilot, lost a tire while taxiing after landing and dragged a wingtip at the Dillingham Airport, Dillingham, Alaska. The business flight, operating under 14 CFR Part 91 for the purpose of fish spotting, departed Togiak, Alaska, and the destination was Dillingham. No flight plan was filed and visual meteorological conditions prevailed. The certificated commercial pilot, the sole occupant, was not injured and the airplane received substantial damage.
During a telephone conversation with the pilot on May 4, 1996, he stated that after landing, while taxiing to the ramp and applying the brakes, the tire rotated on the rim and sheared off the valve stem. The tire and rim then separated from the landing gear and the wingtip dragged the ground.
According to the NTSB form 6120.1/2, submitted by the pilot, he stated that the bonding failed and the rim separated. He did not submit the rim for examination. The airplane was equipped with 8:50 size tires.
Aircraft
- Registration
- N1828C
- Reported as
- Cessna 170
- Category
- Airplane
- Serial number
- 25972
- Engine
- Lycoming O-360, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Business · Part 91
- Operator
- Paul Horn
- Registered owner
- Erney Sisoff
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · April 30, 1996
- Departed
- TOG · Togiak, AK
- Destination
- DLG · AK
- Airport
- DLG · Dillingham, runway 1, 6,404 × 150 ft, asphalt
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
- 33
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Single-engine sea
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 2,700 total · 60 in this make and model · 2,650 as pilot in command · 136 in the last 90 days · 50 in the last 30 days · 10 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 50 statute miles
- Lowest ceiling
- None
- Temperature
- 39 °F
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 N1828C · 1
Matched to the same aircraft by N-number and date.