Aircraft Accident/Incident Report

Merritt Island, Florida 32952
Friday, March 4, 1988 7:10 EST

NTSB Narrative Summary Released at Completion of Accident

WHILE CHECKING THE STALL CHARACTERISTICS OF A HOMEBUILT ACFT, THE ACFT DESCENDED IN A STALLED CONDITION UNTIL CRASHING INTO A RIVER. THE PLT WAS UNABLE TO LOWER THE NOSE. INVESTIGATION REVEALED THAT HE IMPROPERLY POSITIONED BAFFLES IN THE FUEL TANKS RESULTING IN AN INCREASE OF 20 GALLONS. IF THE ANGLE OF ATTACK WERE NOSE HIGH FUEL WOULD SHIFT AFT RESULTING IN AN OUT OF LIMIT AFT C.G. THE FUSELAGE HAD BEEN IMPROPERLY LEVELLED RESULTING IN A NOSE HIGH ATTITUDE. AS A RESULT THE POSITION OF THE AIRFOIL SHAPED TANKS LOCATED FWD OF EACH WING & BONDED TO THE FUSELAGE WERE IMPROPERLY POSITIONED. THE FUEL TANKS ARE PART OF THE WING & PROVIDE LIFT. THIS MOVED THE CENTER OF LIFT FWD, & WITH THE AFT SHIFTING OF FUEL RESULTED IN THE NOSE HIGH DESCENT. ACCORDING TO A PLT WHO HAS FLOWN A SIMILARLY DESIGNED ACFT, DURING FLT TESTING IT STALLED & DESCENDED IN THE SAME ATTITUDE OF THE ACCIDENT ACFT. RECOVERY OCCURRED WHEN HE ADDED AND MAINTAINED FULL POWER.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 3/4/1988
Event Day of the Week Friday
Time of Event 710
Event Time Zone Eastern Standard Time
Event City MERRITT ISLAND
Event State FLORIDA
Event Country --
Zipcode of the event site 32952
Event Date Year 1988
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 654 Eastern Standard Time
Direction of event from weather observation facility (degrees) 332
Weather Observation Facility ID TIX
Elevation of weather observation facility 35
Distance of event from weather observation facility (units?) 12
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 500
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 3
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 20
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Light
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
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) 519
NTSB Notification Source --
NTSB Notification Date Jun 21 1988 12:00AM
NTSB Notification Time 900
Fiche Number and/or location -used to find docket information 36339
Date of most recent change to record Dec 13 2000 11:37AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N128JM
NTSB Number MIA88LA203
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 HUNTER
Aircraft Model VELOCITY
Aircraft Series Identifier VELOCITY
Aircraft Serial Number DM048
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 1
Airframe Hours 1
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name JACK A. MASON
Aircraft Owner Street Address 9 WESTBROOK RD.
Aircraft Owner City NORTHBORO
Aircraft Owner State MA
Aircraft Owner Country
Aircraft Owner Zipcode 01532
Operator is an individual? --
Operator Name NEIL W. HUNTER
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 421 THRUSH DR.
Operator City SATELLITE BEACH
Operator State FL
Operator Country
Operator Zip code 32937
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code COI
Departure City MERRITT ISLAND
Departure State FL
Departure Country
Departure Time 630
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 --