CHI98LA297

NTSB accident investigation · Cessna 180 · Oshkosh, WI · August 1, 1998

Accident · No injuriesLimited investigationFinal report
Date
August 1, 1998, 18:40 local (23:40 UTC)
Place
Oshkosh, WI
Injuries
2 uninjured
Phase of flight
Taxi
Aircraft
N111WFCessna 180N122BPPreece Vans RV-6
Weather
Visual (VMC) · Day
Status
Completed · report July 2, 1999
Report
Approved by Office Director
Case key
43631

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 of the other airplane did not maintain proper clearance.

The pilot failed to maintain clearance from the other airplane while taxiing.

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.

Collision between aircraft (other than midair)Taxi
Clearance - not maintainedPilot in commandCause
Collision between aircraft (other than midair)Taxi
Clearance - not maintainedPilot of other aircraftCause

Analysis

The pilot of the other airplane was taxiing for departure on a north-south taxiway for a departure from runway 18R. He reported that the ATIS advised all traffic to watch the flagmen for ATC instructions. The pilot reported that he was watching the flagman as instructed. The pilot reported, 'The flagman gave me a signal to stop as I approached the intersection, and then changed to the right turn signal. I started my right turn. The flagman gave me no indication that there was an aircraft in my path, or that I should do anything other than complete the turn.' He reported that he was about halfway through the turn when his propeller struck the right wingtip of the RV-6. He reported, 'I was confident that this area was clear because the flagman, with a clear view, directed me to make the turn.' The pilot of the RV-6 was not aware of the conflict until the Cessna's propeller hit the right wing and aileron of his airplane.

The pilot was taxiing for departure on a north-south taxiway for a departure from runway 18R. He reported that the ATIS advised all traffic to watch the flagmen for ATC instructions. The pilot reported that he was watching the flagman as instructed. The pilot reported, 'The flagman gave me a signal to stop as I approached the intersection, and then changed to the right turn signal. I started my right turn. The flagman gave me no indication that there was an aircraft in my path, or that I should do anything other than complete the turn.' He reported that he was about halfway through the turn when his propeller struck the right wingtip of the RV-6. He reported, 'I was confident that this area was clear because the flagman, with a clear view, directed me to make the turn.'

Factual narrative

See Narrative for accident CHI98LA297A.

On August 1, 1998, at 1840 central daylight time, a Cessna 180, N111WF, operated by Fletcher Aviation Inc., taxiied into the right wing of an experimental Preece VANS RV-6, N122BP. The RV-6 was number three holding short for takeoff from runway 18 at Oshkosh Municipal Airport, Oshkosh, Wisconsin. The Cessna 180 was turning on the taxiway when its propeller impacted the right wing of the RV-6. Visual meteorological conditions prevailed at the time of the accident.

The pilot was taxiing for departure on a north-south taxiway for a departure from runway 18R. He reported that the ATIS advised all traffic to watch the flagmen for ATC instructions. He reported that he saw an RV-6 taxi across the front of his airplane when he was about 400 to 500 feet from the intersection. The pilot reported that he was watching the flagman as instructed.

The pilot reported, "The flagman have me a signal to stop as I approached the intersection, and then changed to the right turn signal. I started my right turn. The flagman game me no indication that there was an aircraft in my path, or that I should do anything other than complete the turn." He reported that he was about halfway through the turn when his propeller struck the right wingtip of the RV-6. He reported, "I was confident that this area was clear because the flagman, with a clear view, directed me to make the turn."

The pilot reported that the Cessna 180, a tail wheel airplane, had a blind spot directly in front and to the right when piloting the airplane from the left seat.

The pilot of the RV-6 reported that he was not aware of the conflict until the Cessna's propeller hit the right wing and aileron of his airplane.

Aircraft · 2

Registration
N111WF
Reported as
Cessna 180
Category
Airplane
Serial number
31243
Airframe hours
4,714
Engine
Continental O-470-U, 225 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Fletcher Aviation Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 14, 1997 · 40 hours before
Destination
9WIG · Spring Prairie, WI
Airport
OSH · Oshkosh Whitman Regional

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.

Registration
N122BP
Reported as
Preece Vans RV-6
Category
Airplane, amateur-built
Serial number
22912
Airframe hours
40
Engine
Lycoming O-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Bill Preece
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · February 14, 1998 · 40 hours before
Destination
GRB · Green Bay, WI
Airport
OSH · Oshkosh Whitman Regional

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N111WF
Age
53
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
6,000 total · 1,500 in this make and model · 5,500 as pilot in command · 50 in the last 90 days · 15 in the last 30 days · 2 in the last 24 hours
Role
Pilot, aircraft N122BP
Age
56
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
8,500 total · 40 in this make and model · 7,500 as pilot in command · 40 in the last 90 days · 20 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 52 °F
Altimeter
30.00 inHg
Observed at
OSH

FAA reports on this event · 2

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