- Date
- August 1, 2002, 16:30 local (Aug 2, 2002, 00:30 UTC)
- Place
- Fort Yukon, AK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N50718Helio H-295
- Weather
- Visual (VMC) · Day
- Status
- Completed · report April 29, 2003
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- Parties
- FAA Fairbanks FSDO-01
- FAA report
- 20020801017099A
- Case key
- 55370
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 failure of the axle shaft, which resulted in the separation of the right main tire/wheel from the airplane on landing.
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
The pilot reported that he was landing on a remote gravel strip when the right main landing gear tire/wheel separated from the airplane. He said the right main landing gear leg then dug into the ground, and the fuselage buckled at the landing gear attachment point. The pilot said he examined the right main landing gear axle, and found what he believes was a pre-existing crack where the axle failed.
Factual narrative
On August 1, 2002, about 1630 Alaska daylight time, a wheel-equipped Helio H-295 airplane, N50718, sustained substantial damage when the right main landing gear axle failed during landing at a remote unimproved airstrip, about 124 miles northwest of Fort Yukon, Alaska. The airplane was being operated by Circle Air of Central, Alaska, as a visual flight rules (VFR) business flight under Title 14, CFR Part 91, at the time of the accident. The solo commercial pilot was not injured. Visual meteorological conditions prevailed, and company VFR flight following procedures were in effect. The flight originated at a remote airstrip along Your Creek, about 40 miles north of the accident site.
During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on August 2, the pilot said as the airplane touched down, the right main wheel/tire separated from the landing gear. The right main landing gear leg then dug into the ground, and bent rearward. He said the fuselage structure and skin were damaged at the right main landing gear attachment point. He further stated that when he retrieved the wheel/tire, he noted that the axle was broken.
The pilot said prior to the accident there were no known mechanical anomalies with the airplane, but when he examined the broken axle he said he believed the failure was due to an "old crack."
Aircraft
- Registration
- N50718
- Reported as
- Helio H-295
- Category
- Airplane
- Serial number
- 1268
- Airframe hours
- 4,332
- Engine
- Lycoming GO-480, 295 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Business · Part 91
- Registered owner
- Dawn E. Foster
- Airworthiness certificate
- Standard, Utility; Standard, Normal
- Last inspection
- Annual · May 29, 2002 · 20 hours before
- Departed
- Fort Yukon, AK
- Destination
- Fort Yukon, AK
- Flight plan
- Company VFR
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
- 58
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Single-engine sea
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Last flight review
- June 14, 2002
- Seat
- Left
- Flight hours
- 7,488 total · 291 in this make and model · 7,442 as pilot in command · 57 in the last 90 days · 28 in the last 30 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 61 °F
Docket · 6
The files NTSB released with the investigation on February 7, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.0 MB in all.
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 N50718 · 1
Matched to the same aircraft by N-number and date.