FTW97LA057

NTSB accident investigation · Gilbert Rutan Vari EZE · Oklahoma City, OK · November 10, 1996

Accident · No injuriesLimited investigationFinal report
Date
November 10, 1996, 15:00 local (20:00 UTC)
Place
Oklahoma City, OK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Standing
Aircraft
N18VEGilbert Rutan Vari EZE
Weather
Visual (VMC) · Day
Status
Completed · report August 25, 1997
Report
Approved by Office Director
FAA report
19961110041629A
Case key
20122

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 follow proper starting procedures and set the throttle to idle before hand propping.

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.

On ground/water collision with objectStanding - starting engine(s)
Starting procedure - improperPilot in commandCause
Throttle/power control - not setPilot in commandCause
Object - pole
Object - guy wire

Analysis

During hand propping of the airplane, the throttle is placed in the idle position with the ignition (magneto) switch and fuel on. However, when the engine is flooded, a clearing procedure must be used. For clearing the engine, the pilot turned off the ignition and the fuel and placed the throttle full open before pulling the propeller through backwards 10 blades. Subsequently, the pilot turned on the ignition and the fuel. However, he did not close the throttle. As the pilot pulled the propeller through a revolution, the engine started and the airplane went forward with full power. The left wing tip struck a steel pole and crossed the ramp, a taxiway, and a runway before striking windsock guy wires and coming to a stop. The airplane was not equipped with a parking brake, and at idle power a rubber parking pad at the nose served as the chock. On the Pilot/Operator Report the pilot recommended installing a hand brake, using full lean mixture for flooded procedures, and using a checklist.

Factual narrative

On November 10, 1996, at 1500 central daylight time, a Gilbert Rutan Vari Eze, N18VE, registered to and operated by a private owner, under Title 14 CFR Part 91, struck a pole and windsock guy wires at the Sundance Airport, Oklahoma City, Oklahoma. The private pilot was not injured and the airplane sustained substantial damage. Visual meteorological conditions prevailed for the planned local personal flight and a flight plan was not filed.

During an interview, conducted by the investigator-in-charge, on a pilot statement sent to the FAA inspector, and on the Pilot/Operator Report, the following information was reported by the pilot. The intention for the day was to fuel the airplane and fly for 1 hour; therefore, the pilot taxied the airplane and parked it at the fueling area where he added approximately 6 gallons of fuel. Since the airplane does not have a starter, the airplane is hand propped for starting. During the start, the throttle is placed in the idle position with the ignition (magneto) switch and fuel on; however, if the engine does not start on the first or second flip of the propeller, then the engine is flooded and a clearing procedure must be used. For clearing the engine, the pilot turned off the ignition and the fuel and placed the throttle full open before pulling the propeller through backwards 10 blades. Subsequently, the pilot turned on the ignition and the fuel; however, he did not close the throttle. As the pilot pulled the propeller through a revolution, the engine started and the airplane went forward with full power.

The left wing tip struck a steel pole and the airplane pivoted 90 degrees before the wing cleared the pole. Subsequently, the airplane crossed the ramp, a taxiway, and a runway before striking windsock guy wires and coming to a stop. The engine continued to run until the pilot reached the airplane and shut down the engine. The pilot further stated that clearance from the main wheel pants to the ground did not give enough room to chock the main wheels and the airplane was not equipped with a parking brake. At idle power, a rubber parking pad at the nose served as the chock. On the Pilot/Operator Report the pilot recommended installing a hand brake, using full lean mixture for flooded procedures, and using a checklist.

The FAA inspector examined the airplane and found that damage occurred to the left wing, canard, right elevator, nose gear, propeller, and wheel pants.

Aircraft

Registration
N18VE
Reported as
Gilbert Rutan Vari EZE (RUTAN VARI)
Category
Airplane, amateur-built
Serial number
948
Airframe hours
97
Engine
Continental O-200, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Gregory C. Gilbert
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · August 25, 1996 · 9 hours before
Flight plan
Unknown
Airport
HSD · Sundance Airpark

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
49
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Flight hours
282 total · 80 in this make and model · 235 as pilot in command · 7 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 12 knots
Visibility
10 statute miles
Temperature
70 °F

FAA reports on this event · 1

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