Reno Stead Airport
Aircraft Accident/Incident Report

Reno, Nevada 89506
Thursday, September 13, 2007 14:45 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot was racing his jet airplane in a scheduled race in a high speed, low-level, racetrack pattern around pylons. Videos were obtained from spectators of the race and reviewed. The videos showed that a Rockwell T-2B (Buckeye) airplane was leading the group of jets, with the accident airplane immediately behind as the group rounded pylon 8. As the accident airplane rounded the pylon, it banked to the left, and then banked to the right. The bank to the right continued through an inverted position as the airplane descended. Upon impact with the ground, the airplane was upright, in a nose low attitude. It is likely that due to the low altitude of the airplane during the accident sequence, there was limited time available for the pilot to recover from the upset. According to the Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25), "All aircraft generate a wake while in flight. This disturbance is caused by a pair of counter-rotating vortices trailing from the wingtips. The vortices from larger aircraft pose problems to encountering aircraft. The wake of these aircraft can impose rolling moments exceeding the roll-control authority of the encountering aircraft."

NTSB Probable Cause Narrative

The pilot's encounter with wake turbulence while maneuvering over a race course. Contributing to the accident was the low altitude at which the encounter occurred.

Event Information

Type of Event Accident
Event Date 9/13/2007
Event Day of the Week Thursday
Time of Event 1445
Event Time Zone Pacific Daylight Time
Event City Reno
Event State NEVADA
Event Country --
Zipcode of the event site 89506
Event Date Year 2007
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 393951N
Event Location Longitude 1195302W
Event Location Airport Reno Stead Airport
Event Location Nearest Airport ID 4SD
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0.25
Degrees magnetic from airport --
Airport Elevation 5050
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1456 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 140
Weather Observation Facility ID RNO
Elevation of weather observation facility 4415
Distance of event from weather observation facility (units?) 12
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) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) -11
Wind Direction (degrees magnetic) 260
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 13
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 20
Altimeter Setting at event time (in. Hg) 29.97
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 23502
NTSB Notification Source Airport Operations
NTSB Notification Date Sep 13 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Apr 30 2008 1:28PM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-RNO-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N139DK
NTSB Number SEA07FA263
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name Aero Vodochody
Aircraft Model L-39C
Aircraft Series Identifier --
Aircraft Serial Number 934874
Certified Max Gross Weight 12500
Aircraft Category Airplane
Aircraft Registration Class --
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 Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jul 1 2007 12:00AM
Airframe hours since last inspection 15
Airframe Hours 961
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Bradley Morehouse
Aircraft Owner Street Address --
Aircraft Owner City Afton
Aircraft Owner State WY
Aircraft Owner Country USA
Aircraft Owner Zipcode 83110
Operator is an individual? No
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? --
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) Air Race/Show
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 4SD
Departure City Reno/Stead
Departure State NV
Departure Country USA
Departure Time 1410
Departure Time Zone PDT
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 Other
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Apr 16 2008 3:32PM
User who most recently changed record STAM
Since inspection or accident Last Inspection
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --