Tucson International Airport
Aircraft Accident/Incident Report

Tucson, Arizona 85706
Sunday, January 10, 1999 15:20 MST

NTSB Narrative Summary Released at Completion of Accident

The private pilot was receiving his first flight in a conventional geared aircraft. The instructor had informed him before takeoff that when they were coming in to land that he needed to stay off the heel brakes. On the landing rollout, the aircraft made a slight turn to the left and the student applied right rudder to correct the divergence. The airplane then made an abrupt turn to the right. Both student and instructor applied full left rudder to counteract the right turn but could not regain directional control before the airplane ground looped. The brake system was inspected with no mechanical malfunctions noted.

NTSB Probable Cause Narrative

The student pilot's inadvertent activation of the right heel brake on the conventional geared aircraft, which resulted in a loss of directional control and an inadvertent ground loop. A contributing factor was inadequate supervision.

Event Information

Type of Event Accident
Event Date 1/10/1999
Event Day of the Week Sunday
Time of Event 1520
Event Time Zone Mountain Standard Time
Event City TUCSON
Event State ARIZONA
Event Country --
Zipcode of the event site 85706
Event Date Year 1999
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport TUCSON INTERNATIONAL
Event Location Nearest Airport ID TUS
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 2641
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1553 Mountain Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID TUS
Elevation of weather observation facility 1476
Distance of event from weather observation facility (units?) 0
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) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 4
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) 879
NTSB Notification Source --
NTSB Notification Date Jan 10 1999 12:00AM
NTSB Notification Time 1530
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Apr 20 2001 4:06AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8980D
NTSB Number LAX99LA071
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 Piper
Aircraft Model PA-18A-150
Aircraft Series Identifier PA-18A-150
Aircraft Serial Number 186424
Certified Max Gross Weight 1750
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 100 Hour
Date of Last Inspection May 15 1998 12:00AM
Airframe hours since last inspection 27
Airframe Hours 2998
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name JIM TRAVIS
Aircraft Owner Street Address 13801 E. SPEEDWAY BLVD.
Aircraft Owner City TUCSON
Aircraft Owner State AZ
Aircraft Owner Country
Aircraft Owner Zipcode 85748
Operator is an individual? --
Operator Name SUN WEST AVIATION, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 6971 S. APRON DRIVE
Operator City TUCSON
Operator State AZ
Operator Country
Operator Zip code 85706
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code TUS
Departure City
Departure State
Departure Country
Departure Time 1430
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Apr 20 2001 4:06AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 11R
Runway Length 9117
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --