- Date
- February 26, 2009, 12:45 local (18:45 UTC)
- Place
- Guymon, OK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N170DNNeland Richard L Daytona SU
- Defining event
- Takeoff: Part(s) separation from AC
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 14, 2009
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA/FSDO
- FAA report
- 20090226002499A
- Case key
- 73460
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
Failure of the left main landing gear shock/strut during takeoff for undetermined reasons.
Findings · 1
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
During takeoff, the experimental airplane's left main landing gear shock strut rod separated. During an emergency landing, the separated rod impaled the ground, which caused the airplane to nose over on the left wing and come to rest inverted. The airplane was equipped with 35-inch-wide tundra tires. According to the tire manufacturer, several operators of this make/model airplane are equipped with 31-inch-wide tundra tires and there have been no reported shock strut rod separations. The investigation could not determine why the rod separated.
Factual narrative
On February 26, 2009, approximately 1230 central standard time, an experimental Neland Richard L. Dayton Super Cub, N170DN, sustained substantial damage when it flipped over during an emergency landing at Guymon Municipal Airport (GUY), Guymon, Oklahoma. The private pilot/owner was not injured. Visual meteorological conditions prevailed and no flight plan was filed for the flight conducted under 14 Code of Federal Regulations Part 91. According to a Federal Aviation Administration (FAA) inspector, who responded to the accident site, the airplane's left main landing gear shock strut rod separated during take off from a farm field. The pilot decided to continue the flight to GUY and called emergency personnel to meet him at the airport. The pilot landed on the northeast grassy side of runway 06. The damaged landing gear shock strut rod impaled the ground during the landing, which caused the airplane to nose over on the left wing. The airplane came to rest inverted on the upper wing surface and rudder assembly. An examination of the airplane revealed that the pilot's center forward cross-over tube, left window center post fuselage frame, and rudder were substantially damaged. The airplane was equipped with 35-inch-wide tundra tires. According to the tire manufacturer, several operators of this make/model airplane are equipped with 31-inch-wide tundra tires and there have been no reported shock strut rod separations. The pilot/owner will install landing gear shcok-strut safety cables once the airplane is repaired.
Aircraft
- Registration
- N170DN
- Reported as
- Neland Richard L Daytona SU
- Category
- Airplane, amateur-built
- Serial number
- DC-04
- Engine
- Lycoming O-320, 150 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Delta Charley Lease LLC
- Registered owner
- Delta Charley Lease LLC
- Airworthiness certificate
- Special, Experimental (Special)
- Departed
- None · Guymon, OK
- Destination
- GUY · Guymon, OK
- Flight plan
- Unknown
- Airport
- GUY · Guymon Municipal Airport, runway 06, 1,795 × 200 ft, grass/turf
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.
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 10 statute miles
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.