- Date
- October 12, 1996, 14:30 local (20:30 UTC)
- Place
- Boulder, CO
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N9967QPiper PA-18-135
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 1, 1997
- Report
- Approved by Office Director
- FAA report
- 19961012032249A
- Case key
- 20092
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 and his improper use of rudder. A factor was the pilot's lack of total experience in the make and model 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 landed in a 3-point attitude on runway 8 and allowed the wind (estimated to vary between 270 and 300 degrees at 6 to 9 knots) to get underneath the upwind wing. He said the airplane drifted left of the runway centerline, and he corrected with opposite aileron and rudder 'somewhat excessively.' As the airplane returned to the runway centerline, he applied left rudder, again 'somewhat excessively.' The pilot said the airplane veered to the left and he applied 'right rudder aggressively.' The airplane swerved to the right. Side loads were imposed, the left tire separated from the wheel rim, and the airplane ground looped. The pilot indicated he had logged 4 hours in the airplane in the previous 90 days. Three of the four hours were with an instructor. The accident flight was the pilot's first flight in the airplane as pilot-in-command.
Factual narrative
On October 12, 1996, approximately 1430 mountain daylight time, a Piper PA-18-135, N9967Q, was substantially damaged when it collided with terrain during landing at Boulder, Colorado. The commercial pilot was not injured. Visual meteorological conditions prevailed. No flight plan was filed for the personal flight conducted under Title 14 CFR Part 91. The flight originated at Boulder, Colorado, on October 12, 1996, 1330.
According to the Pilot/Operator Aircraft Accident report, the pilot had been practicing touch and go landings on runway 08 for about an hour. On his last landing, he touched down in a 3-point attitude. He allowed the wind (estimated to vary between 270 and 300 degrees at 6 to 9 knots) to get underneath the upwind wing. The pilot said the airplane drifted left of runway centerline, and he corrected with opposite aileron and rudder "somewhat excessively." As the airplane returned to runway centerline he applied left rudder, again "somewhat excessively." The airplane veered to the left. To avoid a parallel glider landing strip, the pilot applied "right rudder aggressively." The airplane swerved to the right. Side loads caused the left tire to separate from the wheel rim and "induce a skidding 180 degree turn to the right." The airplane departed the right side of the runway tail first. The left wing struck the ground and the airplane pivoted around on its wing tip.
In his accident report, the pilot indicated he had logged 4 hours in the Piper PA-18-135 in the previous 90 days. Three of the 4 hours were with an instructor. The accident flight was his first flight in the airplane as pilot in command.
Aircraft
- Registration
- N9967Q
- Reported as
- Piper PA-18-135
- Category
- Airplane
- Serial number
- 18-4012
- Airframe hours
- 4,323
- Engine
- Lycoming O-290-D2, 135 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Dakota Ridge Aviation
- Registered owner
- Terence F. Danton
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · October 12, 1996
- Departed
- 1V5
- Destination
- 1V5
- Airport
- 1V5 · Boulder Municipal, runway 8R, 4,100 × 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
- 44
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Front
- Flight hours
- 304 total · 4 in this make and model · 231 as pilot in command · 14 in the last 90 days · 4 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Variable at 9 knots
- Visibility
- 60 statute miles
- Lowest ceiling
- None
- Temperature
- 82 °F
- Altimeter
- 30.00 inHg
- Observed at
- BJC, 9 nm away
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 N9967Q · 2
Matched to the same aircraft by N-number and date.