- Date
- May 24, 1992, 11:10 local (19:10 UTC)
- Place
- Kahiltna Glacie, AK
- Injuries
- 4 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N124KTCessna 185
- Weather
- Visual (VMC) · Day
- Status
- Completed · report August 30, 1993
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19920524016199A
- Case key
- 5729
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 fracture of the landing gear wheel ski pivot shaft due to improper manufacture.
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
During a takeoff run on the Kahiltna glacier the left wheel ski pivot shaft fractured and failed causing the right wing to drag on the snow. Examination of the pivot shaft showed that the metal was 4300 series steel, the two keyways were machined differently, and the radius on the circumferential step was irregular. These areas did not meet the specifications set forth in the manufacturer's blueprints.
Aircraft
- Registration
- N124KT
- Reported as
- Cessna 185
- Category
- Airplane
- Serial number
- 18503765
- Engine
- Continental IO-520-D, 300 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Part 135
- Operator
- Jim And Julie Okonek, doing business as K2 Aviation
- Registered owner
- Jim And Julie Okonek
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · January 2, 2000
- Destination
- TKA · Talkeetna, AK
- Flight plan
- VFR
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 41
- Certificate
- Commercial
- Airplane ratings
- Multi-engine land, Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 6,856 total · 850 in this make and model · 6,610 as pilot in command · 170 in the last 90 days · 66 in the last 30 days · 4 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 270° at 5 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 28 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.