- Date
- July 2, 1998, 10:00 local (16:00 UTC)
- Place
- Kemmerer, WY
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N8933DPiper PA-20-160
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 15, 2001
- Report
- Approved by Office Director
- FAA report
- 19980702017069A
- Case key
- 43163
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 pilot's failure to maintain directional control of the airplane, resulting in a ground loop. A factor was the pilot's lack of experience in a conventional landing gear type of airplane.
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 said he 'let the airplane get ahead' of him. He landed in light and variable winds and during the rollout, the airplane began 'fishtailing' and ground looped. In his accident report, the pilot said the airplane touched down on runway 34 and the tail veered to the left. He responded with left rudder input. The tail then swerved to the right and he responded with full right rudder and brake and directional control was lost. He indicated the wind was calm. The pilot reported he had 9 hours in airplane make and model.
Factual narrative
On July 2, 1998, approximately 1000 mountain daylight time, N8933D, a Piper PA-20-160 (converted from a PA-22-160), was substantially damaged when it collided with terrain during landing at Kemmerer, Wyoming. The private pilot, the sole occupant aboard, was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the personal flight being operated under Title 14 CFR Part 91. The flight originated at a private airstrip at Farson, Wyoming, approximately 0930.
In a telephone interview with the pilot, he said he "let the airplane get ahead" of him. He landed in light and variable winds and during the rollout, the airplane began "fishtailing" and ground looped.
According to the pilot's accident report, the airplane touched down on runway 34 and the tail veered to the left. He responded with left rudder input. The tail then swerved to the right and he responded with full right rudder and brake and directional control was lost. The pilot indicated he had 9 hours in airplane make and model.
The pilot did not immediately report the accident. According to the sheriff, he noticed the damaged airplane during a routine patrol. When an FAA inspector went to investigate, the airplane was gone. After the pilot was located by the FAA, the pilot contacted NTSB on July 13. He was asked to explain why the accident was not reported expeditiously to the nearest NTSB office. He did not answer the question.
Aircraft
- Registration
- N8933D
- Reported as
- Piper PA-20-160
- Category
- Airplane
- Serial number
- 22-6091
- Airframe hours
- 3,723
- Engine
- Lycoming O-320-B2A, 160 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Leland P. Grandy
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · February 3, 1998 · 59 hours before
- Departed
- NONE · Farson, WY
- Destination
- EMM
- Airport
- EMM · Kemmerer Municipal, runway 34, 8,200 × 75 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
- 34
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 68 total · 9 in this make and model · 46 as pilot in command · 9 in the last 90 days · 9 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 30 statute miles
- Lowest ceiling
- None
- Temperature
- 75 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.