- Date
- February 20, 2002, 12:30 local (19:30 UTC)
- Place
- Kemmerer, WY
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N84RLKnight BD-4
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 25, 2002
- Report
- Approved by Office Director
- Parties
- FAA Flight Standards Fied Office
- FAA report
- 20020220002799A
- Case key
- 54224
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 NTSB’s determination of the probable cause, and any contributing factors.
The pilot's failure to maintain directional control during takeoff, which resulted in a collision with a snowbank. A contributing factor was the high crosswind.
Analysis
After liftoff, a quartering headwind pushed the airplane to the left side of the runway. The left main gear struck a snow bank and airspeed dropped. The pilot felt he could not clear obstacles ahead and decided to land in the snow. The left main landing gear collapsed, and the left wing then struck the snow. According to the pilot, the wind was from 260 degrees at 20 knots when he started his takeoff on runway 22.
Factual narrative
On February 20, 2002, approximately 1230 mountain standard time, a Knight BD-4, N84RL, operated by the pilot, was substantially damaged following loss of control during takeoff at Kemmerer Municipal Airport, Kemmerer, Wyoming. The pilot and his passenger were not injured. Visual meteorological conditions prevailed, and no flight plan had been filed for the pleasure flight being conducted under Title 14 CFR Part 91. The flight was originating at the time of the accident.
According to the pilot's accident report, the wind was from 260 degrees approximately 20 knots when he started his takeoff roll on runway 22. When the airplane was approximately 8 feet off the ground, the quartering headwind "seemed stronger," and he used "full right rudder to crab into the wind." He said, "The wind pushed me to the left and the left gear hit the top" of a snow bank, turning the airplane "perpendicular to the wind." Airspeed dropped from 75 MPH to 60 MPH and the controls felt "sluggish." The pilot said he didn't feel he could avoid a windsock and fence ahead, so he closed the throttle and landed in the snow. The left gear collapsed when it hit the snow. The left wing then struck the snow, denting the leading edge and tearing off the wing tip.
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.
Aircraft
- Registration
- N84RL
- Reported as
- Knight BD-4
- Category
- Airplane, amateur-built
- Serial number
- 84
- Airframe hours
- 187
- Engine
- Lycoming O-320-B1A, 160 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Harold O. Stockman
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Annual · October 2, 2001 · 35 hours before
- Departed
- EMM · Kemmerer, WY
- Destination
- EKO · Elko, NV
- Airport
- EMM · Kemmerer Municipal, runway EMM, 2,850 × 60 ft, concrete
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
- 48
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Valid Medical--no waivers/lim.
- Last flight review
- February 2, 2002
- Seat
- Front
- Flight hours
- 479 total · 30 in this make and model · 439 as pilot in command · 36 in the last 90 days · 22 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 250° at 7 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 4,000 ft broken
- Temperature
- 30 °F, dew point 28 °F
- Altimeter
- 30.12 inHg
- Observed at
- EVW, 51 nm away
Docket · 3
The files NTSB released with the investigation on July 3, 2002, on NTSB’s docket system: statements, records, photos and specialists’ reports. 435 KB 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.