WPR13CA220

NTSB accident investigation · Adolphson CCK-1865 · Bellingham, WA · May 2, 2013

Accident · No injuriesData collectionFinal report
Date
May 1, 2013, 18:32 local (May 2, 2013, 01:32 UTC)
Place
Bellingham, WA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N88XCAdolphson CCK-1865
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report August 29, 2013
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
FAA SEA FSDO
FAA report
20130501005929A
Case key
86841

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 failure to maintain directional control during landing. Contributing to the accident was the flight instructor’s delayed remedial action.

Findings · 3

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAll aircraft: 9,295 casesProbable cause
Action: delayed actionPersonnel issues › Action/decision · Instructor/check pilotAll aircraft: 894 casesProbable cause

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.

Loss of control on groundLanding-landing rollAll aircraft: 4,585 casesDefining event

Analysis

The flight instructor and the private pilot were performing practice takeoff and landings in the amateur-built experimental airplane so the pilot could provide an assessment of the airplane's handling qualities. The flight instructor reported that the pilot made a normal approach with full flaps and that the pilot made a "good landing with a normal touchdown." The pilot then commented that "it's skittish alright," and the airplane began to enter a ground loop. The flight instructor took over the controls, but the airplane exited the runway, continued through at least a portion of the ground loop, and dragged the right wingtip on the ground. The airplane sustained substantial damage to some right wing ribs and the right aileron. The flight instructor reported that the tower air traffic controller stated that the wind was "light and variable at 4 knots" about that time. The pilot reported that this was his first flight in the accident airplane make and model. Neither the flight instructor nor the pilot reported any preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

The flight instructor and the private pilot were performing practice takeoff and landings in the amateur-built experimental airplane, in order to have the pilot provide an assessment of the airplane's handling qualities. The flight instructor reported that he had the pilot make a normal approach with full flaps, and the pilot made a "good landing with a normal touchdown." The pilot then commented that "It's skittish alright," and the airplane began to enter a ground loop. The flight instructor took over the controls, but the airplane exited the runway, continued through at least a portion of the ground loop, and dragged the right wingtip on the ground. The airplane sustained substantial damage to some right wing ribs and the right aileron. The flight instructor reported that the air traffic control tower stated that the wind was "light and variable at 4 knots" about that time. The pilot reported that this was his first flight in the accident airplane make and model. Neither the flight instructor nor the pilot reported a preimpact mechanical malfunction or failure with the airplane that would have precluded normal operation.

Aircraft

Registration
N88XC
Reported as
Adolphson CCK-1865
Category
Airplane, amateur-built
Serial number
CCK-1865-0008
Airframe hours
1,320
Engine
Adolphson unk, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Wheels Skis &Floats LLC
Registered owner
Wheels Skis &Floats LLC
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · September 6, 2012
Departed
BLI · Bellingham, WA
Destination
BLI · Bellingham, WA
Airport
BLI · Bellingham International, runway 16, 6,700 × 150 ft, asphalt

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
69
Injuries
None
Certificates
Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
August 9, 2012
Seat
Rear
Flight hours
34,000 total · 15 in this make and model · 18,000 as pilot in command · 90 in the last 90 days · 50 in the last 30 days · 4 in the last 24 hours
Role
Pilot
Age
34
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
February 24, 2013
Seat
Front
Flight hours
290 total · 0 in this make and model · 182 as pilot in command · 2 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
57 °F, dew point 28 °F
Altimeter
30.54 inHg
Observed at
BLI

Docket · 6

The files NTSB released with the investigation on June 14, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.8 MB 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.