DEN87DTM01

NTSB accident investigation · Evans VP-2 · Cedar Valley, UT · September 18, 1987

Accident · Serious injuriesFinal report
Date
September 18, 1987, 15:15 local (21:15 UTC)
Place
Cedar Valley, UT
Injuries
1 serious
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N84772Evans VP-2
Weather
Visual (VMC) · Day
Status
Completed · report October 6, 1988
Report
Approved by Office Director
FAA report
19870918053639A
Case key
17073

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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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.

Airframe/component/system failure/malfunctionTakeoff - initial climb
Flt control syst,aileron control - binding(mechanical)Cause
Aileron - improperManufacturerCause
Maintenance,inspection - inadequatePilot in commandCause
Operation with known deficiencies in equipment - initiatedPilot in commandCause
Loss of control - in flightDescent - uncontrolled
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The acft was flown by two different plts who complained of stiff ailerons. The aileron system was examined but no deficiencies were noted. A third plt then took off and began a lt turn at about 75 to 100 ft AGL. When he attempted to return to wings level he was unable to roll to the rt. The lt bank then increased and the acft collided with the ground in a lt wing low, nose low attitude and cartwheeled. Examination of the inboard aileron pulley block on the lt wing revealed that adhesive used to affix the block to the supporting structure had seeped down to the outside of the pulley and formed a bond between the pulley and the structure. The pulley also had a groove worn in the pulley channel consistent with lack of pulley rotation.

Aircraft

Registration
N84772
Reported as
Evans VP-2
Category
Airplane, amateur-built
Serial number
N84772
Engine
Continental A75, 65 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Harold Wirth
Registered owner
Charles Samuel Francis
Airworthiness certificate
Special, Experimental (Special)

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
Seat
Front
Flight hours
4,000 total · 2 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 10 knots
Visibility
30 statute miles
Lowest ceiling
None

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.