CHI04CA208

NTSB accident investigation · Cherkas Murphy Rebel · Dunseith, ND · July 31, 2004

Accident · No injuriesData collectionFinal report
Date
July 31, 2004, 17:00 local (22:00 UTC)
Place
Dunseith, ND
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
C-GKHNCherkas Murphy Rebel
Weather
Visual (VMC) · Day
Status
Completed · report October 28, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration - Fargo FSDO
Case key
59946

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot's misjudged speed/distance, and his failure to maintain directional control during landing roll, which resulted in the inadvertent ground-loop.

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.

Loss of control - on ground/waterLanding - roll
Distance/speed - misjudgedPilot in commandCause
Proper touchdown point - exceededPilot in commandCause
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - inadvertentPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - ground

Analysis

The airplane ground-looped during landing roll. The pilot reported he performed a three-point landing and continued to rollout straight down the runway for another 200 feet prior to the airplane beginning to drift to the left. The pilot stated he attempted to correct for the drift by applying "full right rudder and brake" but the airplane "would not turn". The pilot reported the airplane departed the runway surface after turning 120-degrees to the left. The pilot stated the airplane transitioned from the runway into a field and came to a stop facing 180-degrees from the runway heading. According to an on-site investigation, the airplane landed on the last third of the 3,000 foot runway and departed the left side of the runway approximately 375 feet from the end of the runway. There were brake skid marks that measured approximately 150 feet leading up to where the airplane departed the runway surface.

Factual narrative

On July 31, 2004, at 1700 central daylight time, an amateur-built Cherkas Murphy Rebel, Canadian registration C-GKHN, built and piloted by a commercial pilot, was substantially damaged while landing on runway 28 (3,000 feet by 60 feet, dry asphalt) at the International Peace Garden Airport (S28), Dunseith, North Dakota. Visual meteorological conditions prevailed at the time of the accident. The personal flight was operated under the provisions of 14 CFR Part 91 without a flight plan. The pilot and his passenger reported no injuries. The cross-country flight departed Little Falls/Morrison County Airport (LXL), Little Falls, Minnesota, at 1400.

The pilot reported that he performed a three-point landing and continued to rollout straight down the runway for another 200 feet prior to the airplane beginning to drift to the left. The pilot stated he attempted to correct for the drift by applying "full right rudder and brake" but the airplane "would not turn". The pilot reported the airplane departed the runway surface after turning 120-degrees to the left. The pilot stated the airplane transitioned from the runway into a field and came to a stop facing 180-degrees from the runway heading.

The pilot stated that he inspected the tailwheel after the accident. The pilot reported that the release to the swivel-sleeve was burred and as a result it restricted the rotation of the tailwheel.

A Federal Aviation Administration (FAA) inspector performed an on-site investigation. According to the inspector, the airplane landed on the last third of the runway and departed the left side of the runway approximately 375 feet from the end of the runway. The inspector stated there were brake skid marks that measured approximately 150 feet leading up to where the airplane departed the runway.

Aircraft

Registration
C-GKHN
Reported as
Cherkas Murphy Rebel
Category
Airplane, amateur-built
Serial number
505
Airframe hours
89.3
Engine
Lycoming O-320-A2B, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Departed
LXL · Little Falls, MN
Destination
S28 · Dunseith, ND
Airport
S28 · International Peace Garden Apt, runway 28, 3,000 × 60 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
49
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
600 total · 89 in this make and model · 45 in the last 90 days · 20 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 11 knots, gusting 16
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 55 °F
Altimeter
29.79 inHg
Observed at
MOT, 66 nm away