Yolo County Airport
Aircraft Accident/Incident Report

Davis, California 95695
Friday, August 4, 2000 9:00 PDT

NTSB Narrative Summary Released at Completion of Accident

The airplane sustained substantial damage when it veered off the runway and collided with a runway light during a simulated engine failure in the takeoff ground roll . The certified flight instructor (CFI) explained to his student that he would be simulating an engine failure on the takeoff roll and proceeded to retard the right throttle. The CFI waited for his student to apply the proper correction procedures; however, the airplane continued to drift to the right side of the runway. The CFI pulled both throttles but realized at that point that he did not have any brakes on his side of the airplane. He increased the throttles and the airplane "violently swerved and rolled" to the left as it became airborne. As the airplane drifted down the runway in ground effect, the CFI regained control and continued the departure. The CFI and student made another practice stop-and-go landing. During the taxi back, they noticed the left wing tip was missing and returned to their home base.

NTSB Probable Cause Narrative

the dual student's improper response to a simulated engine failure and the flight instructor's delayed remedial action and inadequate supervision of the flight.

Event Information

Type of Event Accident
Event Date 8/4/2000
Event Day of the Week Friday
Time of Event 900
Event Time Zone Pacific Daylight Time
Event City DAVIS
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95695
Event Date Year 2000
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 382040N
Event Location Longitude 1214838W
Event Location Airport Yolo County
Event Location Nearest Airport ID 2Q3
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 98
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 853 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 40
Weather Observation Facility ID SMF
Elevation of weather observation facility 27
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
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) 21
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation --
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) 14296
NTSB Notification Source FAA
NTSB Notification Date Aug 8 2000 12:00AM
NTSB Notification Time 1340
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Nov 25 2003 11:36AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N300RE
NTSB Number LAX00LA287
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-30
Aircraft Series Identifier PA-30
Aircraft Serial Number 30-841
Certified Max Gross Weight 3600
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 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Joseph C. Hefferon
Aircraft Owner Street Address --
Aircraft Owner City Vacaville
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 95687
Operator is an individual? No
Operator Name TRAVIS AFB AEROCLUB
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address PO BOX 1477
Operator City TRAVIS AFB
Operator State CA
Operator Country --
Operator Zip code 94535
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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 No
Departure Airport Code 8Q0
Departure City FAIRFIELD
Departure State CA
Departure Country USA
Departure Time 830
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code 2Q3
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred No
Date of most recent change to record Sep 9 2003 3:46PM
User who most recently changed record COOS
Since inspection or accident --
Event Location Runway Number and Location 16
Runway Length 6000
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --