Warrenton Air Park Airport
Aircraft Accident/Incident Report

Warrenton, Virginia 20187
Sunday, August 7, 2011 13:50 EDT

NTSB Narrative Summary Released at Completion of Accident

The airplane was observed by several witnesses entering the airport traffic pattern. Two witnesses observed the airplane bank to the left while turning from the base leg to final approach, stall, and enter an uncontrolled descent. A postaccident examination of the airplane and engine revealed no evidence of any preimpact failure or malfunction. A certified flight instructor, who had flown recently with the accident pilot, reported that, on several occasions, the accident pilot performed turns in the traffic pattern at excessive bank angles. In addition, during the most recent flight with the pilot, the pilot did not properly recover the airplane after hearing the stall warning horn and had to be instructed on how to recover from the impending stall. Based on the witness reports of the airplaneā€™s steep bank angle and sudden decrease in pitch attitude, it is likely the pilot inadvertently stalled the airplane during the base-to-final turn in the traffic pattern.

NTSB Probable Cause Narrative

The pilot's inadequate airspeed and excessive bank angle while maneuvering for landing, which resulted in an aerodynamic stall.

Event Information

Type of Event Accident
Event Date 8/7/2011
Event Day of the Week Sunday
Time of Event 1350
Event Time Zone Eastern Daylight Time
Event City Warrenton
Event State VIRGINIA
Event Country --
Zipcode of the event site 20187
Event Date Year 2011
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 383856N
Event Location Longitude 0774726W
Event Location Airport Warrenton Air Park
Event Location Nearest Airport ID 7VG0
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 442
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1355 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 139
Weather Observation Facility ID HWY
Elevation of weather observation facility 336
Distance of event from weather observation facility (units?) 5
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 4700
Sky/Lowest/Cloud Conditions Scattered
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) 35
Dew Point at event time (in degress fahrenheit) 27
Wind Direction (degrees magnetic) 220
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) 29.71
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 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 29459
NTSB Notification Source FAA Eastern ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Dec 30 2011 10:57AM
User who most recently changed record kenj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N747GL
NTSB Number ERA11FA443
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name MAULE
Aircraft Model M-7-235
Aircraft Series Identifier --
Aircraft Serial Number 4132C
Certified Max Gross Weight 2750
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name RICHARDS THOMAS J
Aircraft Owner Street Address --
Aircraft Owner City WARRENTON
Aircraft Owner State VA
Aircraft Owner Country USA
Aircraft Owner Zipcode 20187-7738
Operator is an individual? Yes
Operator Name RICHARDS THOMAS J
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City WARRENTON
Operator State VA
Operator Country USA
Operator Zip code 20187-7738
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code VKX
Departure City Friendly
Departure State MD
Departure Country USA
Departure Time 1315
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code 7VG0
Destination City Warrenton
Destination State VA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 30 2011 10:57AM
User who most recently changed record kenj
Since inspection or accident --
Event Location Runway Number and Location 04
Runway Length 2215
Runway Width 70
Sight Seeing flight No
Air Medical Flight No
Medical Flight --