Aircraft Accident/Incident Report

Ponte Vedra Bch, Florida 32082
Wednesday, March 29, 1989 16:00 EST

NTSB Narrative Summary Released at Completion of Accident

THE EXPERIMENTAL AMATEUR-BUILT ACFT WAS ON A TEST FLT AT 10,000 FT TO PERFORM SOME MANEUVERS WITH THE CG AT THE MOST REARWARD LIMITS. THE ACFT WAS PLACED INTO AN 'AGGRAVATED STALL' DURING WHICH THE ACFT ENTERED A 'DEEP STALL'. ALL CONVENTIONAL & UNCONVENTIONAL MEANS OF REGAINING CONTROL OF THE ACFT, INCLUDING THE PLT CLIMBING OUT OF THE COCKPIT & LEANING AS FAR FWD AS POSSIBLE, FAILED TO RECOVER CONTROL OF THE ACFT. AT ONE POINT, THE PLT CONSIDERED BAILING OUT, BUT CHANGED HIS MIND DUE TO THE ZERO BANK, ZERO FWD SPEED, ZERO YAW & SLOW DESCENT TOWARD THE OCEAN. AFTER THE HARD VERTICAL IMPACT, THE PLT RELEASED HIS HARNESS & STEPPED INTO THE WATER. THE ACFT WAS RECOVERED & AN EXAM REVEALED THAT THE CANARD GAP SEALS WHICH HAD BEEN INSTALLED TO ENHANCE PITCH AUTHORITY OF THE CANARD ON THE PREV FLT, WERE STILL IN PLACE DUE TO AN OVERSIGHT. WITH THE GAP SEALS INSTALLED, THE CANARD PITCH AUTHORITY EXCEEDED THE AUTHORITY OF THE WING.

NTSB Probable Cause Narrative

FAILURE THROUGH AN OVERSIGHT TO REMOVE THE CANARD GAP SEALS PRIOR TO AGGRAVATED STALL TESTING WHICH RESULTED IN THE AIRCRAFT ENTERING AN UNCONTROLLABLE FLIGHT REGIME.

Event Information

Type of Event Accident
Event Date 3/29/1989
Event Day of the Week Wednesday
Time of Event 1600
Event Time Zone Eastern Standard Time
Event City PONTE VEDRA BCH
Event State FLORIDA
Event Country --
Zipcode of the event site 32082
Event Date Year 1989
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1549 Eastern Standard Time
Direction of event from weather observation facility (degrees) 300
Weather Observation Facility ID CRG
Elevation of weather observation facility 41
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 3500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
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) 26
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 140
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 18
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 517
NTSB Notification Source --
NTSB Notification Date Mar 29 1989 12:00AM
NTSB Notification Time 1855
Fiche Number and/or location -used to find docket information 39921
Date of most recent change to record Dec 13 2000 12:32PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N81VA
NTSB Number MIA89LA117
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name LEE, DAVID
Aircraft Model VELOCITY
Aircraft Series Identifier VELOCITY
Aircraft Serial Number DM0043
Certified Max Gross Weight 2250
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 20 1989 12:00AM
Airframe hours since last inspection 15
Airframe Hours 110
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name LEE, DAVID
Aircraft Owner Street Address 200 W. AIRPORT DRIVE
Aircraft Owner City SEBASTIAN
Aircraft Owner State FL
Aircraft Owner Country
Aircraft Owner Zipcode 32958
Operator is an individual? --
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? No
Certified for Part 133 or 137 Operation Unknown
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) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code SGJ
Departure City ST. AUGUSTINE
Departure State FL
Departure Country
Departure Time 1535
Departure Time Zone EST
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 Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --