Tonopah Airport
Aircraft Accident/Incident Report

Tonopah, Nevada 890491
Sunday, October 30, 1994 16:45 PST

NTSB Narrative Summary Released at Completion of Accident

THE PILOT REPORTED THAT HE WAS TAXIING IN A SOUTHEASTERLY DIRECTION WITH A RIGHT QUARTERING TAILWIND. HE SAID HE TRIED TO KEEP THE AIRPLANE'S TAXI SPEED SLOW AND WAS APPLYING MINIMUM POWER WITH THE CONTROL YOKE FORWQRD (ELEVATOR DOWN). WHILE TAXIING, THE AIRPLANE'S NOSE LANDING GEAR BEGAN TO SHIMMY. THE PILOT PULLED THE CONTROL YOKE BACK AND APPLIED BRAKING TO CORRECT THE NOSE SHIMMY. HE SAID THAT THE WIND RAISED THE TAIL AND THE AIRPLANE BEGAN TO 'WHEELBARROW' ON THE NOSEGEAR AND TURNED TO THE LEFT. THE AIRPLANE EXITED THE TAXIWAY AND ENTERED ONTO THE SOFT DIRT NEXT TO THE TAXIWAY. THE AIRPLANE COLLIDED WITH A BERM AND NOSED OVER.

NTSB Probable Cause Narrative

the pilot's excessive taxi speed and improper remedial action after the nose gear began to shimmy. The nose gear shimmy (nose gear vibration) and the berm were factors in this accident.

Event Information

Type of Event Accident
Event Date 10/30/1994
Event Day of the Week Sunday
Time of Event 1645
Event Time Zone Pacific Standard Time
Event City TONOPAH
Event State NEVADA
Event Country --
Zipcode of the event site 890491
Event Date Year 1994
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport TONOPAH
Event Location Nearest Airport ID TPH
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 5426
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1650 Pacific Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID TPH
Elevation of weather observation facility 5426
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 20000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 50
Air Temperature at event time (in degrees celsius) 12
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1487
NTSB Notification Source --
NTSB Notification Date Oct 30 1994 12:00AM
NTSB Notification Time 1826
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 12:28PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8210U
NTSB Number LAX95LA025
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 172F
Aircraft Series Identifier 172F
Aircraft Serial Number 17252110
Certified Max Gross Weight 2300
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 15 1994 12:00AM
Airframe hours since last inspection 16
Airframe Hours 5411
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name WILLIAM L. WELLS
Aircraft Owner Street Address SAME AS REGISTERED OWNER
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code TPH
Departure City
Departure State
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt --
Destination Airport Code WVI
Destination City WATSONVILLE
Destination State CA
Destination Country
Specific Phase of Flight Taxi
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 33
Runway Length 6162
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --