Aircraft Accident/Incident Report

Somerville, Tennessee 38068
Sunday, December 11, 2011 13:30 CST

NTSB Narrative Summary Released at Completion of Accident

A witness reported that, during takeoff, the airplane became airborne about 300 feet down the turf runway. It then drifted right towards the trees, abruptly banked left, and oscillated about its roll axis. The airplane subsequently pitched up sharply to an angle of 45 degrees or more, followed by a stall and nose-down descent into the runway. According to the witness, the engine ran continuously during the impact sequence. Postaccident examination of the wreckage did not reveal any preimpact mechanical malfunctions. The sport pilot's autopsy report noted an acute rupture of a berry aneurysm, which most likely incapacitated him during the takeoff. The pilot's most recent Federal Aviation Administration third-class medical certificate was issued more than 4 years before the accident; however, as a sport pilot, he was not required to hold a current medical certificate, and, additionally, a more recent similar medical examination would likely not have detected the aneurysm.

NTSB Probable Cause Narrative

The pilot's incapacitation due to a ruptured berry aneurysm during takeoff.

Event Information

Type of Event Accident
Event Date 12/11/2011
Event Day of the Week Sunday
Time of Event 1330
Event Time Zone Central Standard Time
Event City Somerville
Event State TENNESSEE
Event Country --
Zipcode of the event site 38068
Event Date Year 2011
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 352224N
Event Location Longitude 0892052W
Event Location Airport --
Event Location Nearest Airport ID NONE
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 345
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1353 Central Standard Time
Direction of event from weather observation facility (degrees) 70
Weather Observation Facility ID MKL
Elevation of weather observation facility 434
Distance of event from weather observation facility (units?) 25
Time Zone of the weather observation CST
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) 8
Dew Point at event time (in degress fahrenheit) -6
Wind Direction (degrees magnetic) 80
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.42
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) 30024
NTSB Notification Source FAA Southern ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 2 2012 4:42PM
User who most recently changed record snyg
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N347DS
NTSB Number ERA12FA107
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name SHAW DOUGLAS WAYNE
Aircraft Model RANS S 7
Aircraft Series Identifier --
Aircraft Serial Number 0491082
Certified Max Gross Weight 1200
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
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 Conditional
Date of Last Inspection Jan 12 2007 12:00AM
Airframe hours since last inspection 13
Airframe Hours 284
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MILLER IRA L
Aircraft Owner Street Address --
Aircraft Owner City SOMERVILLE
Aircraft Owner State TN
Aircraft Owner Country USA
Aircraft Owner Zipcode 38068-4580
Operator is an individual? No
Operator Name MILLER IRA L
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City SOMERVILLE
Operator State TN
Operator Country USA
Operator Zip code 38068-4580
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 Yes
Departure Airport Code NONE
Departure City Somerville
Departure State TN
Departure Country USA
Departure Time 1330
Departure Time Zone CST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code NONE
Destination City Somerville
Destination State TN
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 26 2012 3:43PM
User who most recently changed record kenj
Since inspection or accident Time of Accident
Event Location Runway Number and Location 05
Runway Length 1300
Runway Width 35
Sight Seeing flight No
Air Medical Flight No
Medical Flight --