Rockledge Airport
Aircraft Accident/Incident Report

Rockledge, Florida 32955
Saturday, December 1, 2007 12:54 EST

NTSB Narrative Summary Released at Completion of Accident

Following maintenance to the amateur-built airplane, including the manufacture and installation of shoulder harness cables and a condition inspection, the airplane was test flown by the facility general manager on two separate flights lasting a total of one hour. The only discrepancies reported by the general manager related to the airplane's brakes and noise in the headset. While the pilot has no independent recollection of the accident flight, a pilot-rated witness who was outside on the airport reported that his attention was drawn to the accident airplane when he heard a normal sounding engine run-up being performed. He watched the airplane take off, becoming airborne at the midpoint of the runway. The initial takeoff climb appeared normal, then approximately 1.5 seconds later, at an estimated 75 feet above ground level (agl), the left wing dropped or "bobbled." The airplane rolled to the right, then climbed to 100 to 150 feet agl. The right wing raised, the nose pitched up 15 degrees, which was more than a normal pitch attitude, and then the airplane "shuddered" and stalled to the left. The airplane impacted terrain in a left-wing-low attitude. During the impact sequence, the pilot's shoulder harness cable failed prematurely due to improper manufacturing, contributing to his serious head injuries. No evidence of preimpact failure or malfunction was identified for either the flight controls or engine.

NTSB Probable Cause Narrative

The failure of the pilot to maintain airspeed during climbout, resulting in an aerodynamic stall and uncontrolled descent. Contributing to the severity of the pilot's injuries was the inadequate manufacture of the shoulder harness restraint cables.

Event Information

Type of Event Accident
Event Date 12/1/2007
Event Day of the Week Saturday
Time of Event 1254
Event Time Zone Eastern Standard Time
Event City Rockledge
Event State FLORIDA
Event Country --
Zipcode of the event site 32955
Event Date Year 2007
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 281802N
Event Location Longitude 0804317W
Event Location Airport Rockledge Airport
Event Location Nearest Airport ID 21FA
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 27
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1255 Eastern Standard Time
Direction of event from weather observation facility (degrees) 130
Weather Observation Facility ID COF
Elevation of weather observation facility 8
Distance of event from weather observation facility (units?) 7
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 2700
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 25
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 40
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.22
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 25002
NTSB Notification Source FAA Southern Region C-ROC
NTSB Notification Date Dec 1 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Feb 4 2009 1:16PM
User who most recently changed record muzd
Basic weather conditions Visual Meteorological Cond
FAA District Office Orlando, Florida

Aircraft Involved

Aircraft #1

Aircraft Registration Number N79GP
NTSB Number MIA08LA023
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PORTER GLEN
Aircraft Model AVENTURA II
Aircraft Series Identifier --
Aircraft Serial Number AP2A0079
Certified Max Gross Weight 1150
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 Nov 29 2008 12:00AM
Airframe hours since last inspection 1
Airframe Hours 142.2
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name CLARK THOMAS P
Aircraft Owner Street Address --
Aircraft Owner City BYRON
Aircraft Owner State GA
Aircraft Owner Country USA
Aircraft Owner Zipcode 31008-6156
Operator is an individual? No
Operator Name CLARK THOMAS P
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City BYRON
Operator State GA
Operator Country USA
Operator Zip code 31008-6156
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 21FA
Departure City Rockledge
Departure State FL
Departure Country USA
Departure Time 1254
Departure Time Zone EST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 21FA
Destination City --
Destination State --
Destination Country USA
Specific Phase of Flight Takeoff - initial climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 4 2009 1:22PM
User who most recently changed record muzd
Since inspection or accident Time of Accident
Event Location Runway Number and Location 36
Runway Length 2010
Runway Width 45
Sight Seeing flight No
Air Medical Flight No
Medical Flight --