Thermal Airport
Aircraft Accident/Incident Report

Thermal, California 92274
Saturday, July 13, 1996 16:21 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that while inbound to the airport he attempted to contact the CTAF for an airport advisory but could not raise anyone on the frequency. He then monitored the ATIS from a nearby airport and selected runway 35 on that basis. As he entered the traffic pattern he observed the windsock indicating an east wind about the speed he obtained from the ATIS and configured the aircraft for a crosswind landing. The pilot said the touchdown on the main wheels and the subsequent ground roll was uneventful until he lowered the tail. Just after lowering the tailwheel to the ground a gust of wind from the east pushed the tail to the left. The pilot said he was unable to regain directional control with either rudder or brake application and the aircraft ground looped to the right, collapsing the left main landing gear and bending the left wing.

NTSB Probable Cause Narrative

The pilot's inadequate compensation for the existing wind conditions.

Event Information

Type of Event Accident
Event Date 7/13/1996
Event Day of the Week Saturday
Time of Event 1621
Event Time Zone Pacific Daylight Time
Event City THERMAL
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92274
Event Date Year 1996
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport THERMAL
Event Location Nearest Airport ID TRM
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 -117
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1547 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID TRM
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 9000
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) 25
Air Temperature at event time (in degrees celsius) 41
Dew Point at event time (in degress fahrenheit) 15
Wind Direction (degrees magnetic) 120
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 18
Altimeter Setting at event time (in. Hg) 29
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 806
NTSB Notification Source --
NTSB Notification Date Jul 13 1996 12:00AM
NTSB Notification Time 1640
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 10:12AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4740B
NTSB Number LAX96LA271
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 180
Aircraft Series Identifier 180
Aircraft Serial Number 31638
Certified Max Gross Weight 2550
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 Mar 4 1996 12:00AM
Airframe hours since last inspection 39
Airframe Hours 2977
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name LARRY A. WALBURN
Aircraft Owner Street Address 918 HIGH COUNTRY DRIVE
Aircraft Owner City GLENDORA
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 91740
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 No
Departure Airport Code POC
Departure City LAVERNE
Departure State CA
Departure Country
Departure Time 1500
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code TRM
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
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 35
Runway Length 6799
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --