Avra Valley Airport
Aircraft Accident/Incident Report

Tucson, Arizona 85701
Tuesady, April 23, 1996 8:25 MST

NTSB Narrative Summary Released at Completion of Accident

The pilot entered the downwind leg of the traffic pattern and noted that the windsock was indicating calm winds. He completed the normal rectangular traffic pattern with no indications of the wind conditions changing. During touchdown a gust of wind from the west raised the right wing, allowing the airplane to drift left. The pilot unsuccessfully attempted to correct the drift and then attempted a go-around. The pilot aborted the go-around when he saw a back hoe in his path. The airplane's left wing then collided with the back hoe, which was parked unattended about 20 to 30 feet from the runway's edge. After the accident, the winds were noted to shift periodically with gusts above 15 miles per hour.

NTSB Probable Cause Narrative

failure of the pilot to adequately compensate for gusting crosswind conditions and to maintain directional control. A factor in the accident was unattended construction equipment parked in close proximity to the runway edge.

Event Information

Type of Event Accident
Event Date 4/23/1996
Event Day of the Week Tuesday
Time of Event 825
Event Time Zone Mountain Standard Time
Event City TUCSON
Event State ARIZONA
Event Country --
Zipcode of the event site 85701
Event Date Year 1996
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport AVRA VALLEY
Event Location Nearest Airport ID E14
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 2031
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 756 Mountain Standard Time
Direction of event from weather observation facility (degrees) 129
Weather Observation Facility ID TUS
Elevation of weather observation facility 2641
Distance of event from weather observation facility (units?) 23
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) -9
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Unknown
Wind Speed (knots) 3
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
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) 292
NTSB Notification Source --
NTSB Notification Date Apr 23 1996 12:00AM
NTSB Notification Time 1020
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 9:57AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N333JS
NTSB Number LAX96LA176
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 Bellanca
Aircraft Model 7KCAB
Aircraft Series Identifier 7KCAB
Aircraft Serial Number
Certified Max Gross Weight 1650
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection --
Airframe hours since last inspection 45
Airframe Hours 2200
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name TAILDRAGGER PILOTS INC
Aircraft Owner Street Address 2051 W. KITTY HAWK WAY
Aircraft Owner City TUCSON
Aircraft Owner State AZ
Aircraft Owner Country
Aircraft Owner Zipcode 85737
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 40E
Departure City
Departure State CA
Departure Country
Departure Time 755
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code E14
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 12
Runway Length 6901
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --