Aircraft Accident/Incident Report

Wimauma, Florida 33503
Wednesday, April 11, 1990 11:05 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PLT STATED THAT DURING CRUISE FLT, HE FELT A SEVERE VIBRATION FROM THE REAR OF THE ACFT (THE ACFT WAS A PUSHER TYPE). HE SECURED THE ENG. AFTER TOUCHDOWN IN A FIELD DURING THE FORCED LANDING, THE ACFT ROLLED INVERTED & CAME TO REST. EXAM OF THE ACFT REVEALED THAT A PORTION OF ONE PROPELLER BLADE DELAMINATED AT A KNOT.

NTSB Probable Cause Narrative

DELAMINATION OF A PORTION OF ONE OF THE WOODEN PROPELLER BLADES AT A KNOT, RESULTING IN SEVERE VIBRATION AND NECESSITATING A FORCED LANDING.

Event Information

Type of Event Accident
Event Date 4/11/1990
Event Day of the Week Wednesday
Time of Event 1105
Event Time Zone Eastern Daylight Time
Event City WIMAUMA
Event State FLORIDA
Event Country --
Zipcode of the event site 33503
Event Date Year 1990
Event Date Month 4
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 1053 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 36
Weather Observation Facility ID LAL
Elevation of weather observation facility 142
Distance of event from weather observation facility (units?) 25
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 4000
Lowest Non-Ceiling Height 1300
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) 12
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 1500
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 356
NTSB Notification Source --
NTSB Notification Date Apr 12 1990 12:00AM
NTSB Notification Time 1300
Fiche Number and/or location -used to find docket information 41291
Date of most recent change to record Dec 12 2000 4:54PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N125V
NTSB Number MIA90LA103
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 SWING
Aircraft Model VELOCITY RG
Aircraft Series Identifier VELOCITY R
Aircraft Serial Number DM-074
Certified Max Gross Weight --
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 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 5 1990 12:00AM
Airframe hours since last inspection 15
Airframe Hours 115
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SWING, BRIAN S
Aircraft Owner Street Address 791 HELKE RD
Aircraft Owner City VANDALIA
Aircraft Owner State OH
Aircraft Owner Country
Aircraft Owner Zipcode 45377
Operator is an individual? --
Operator Name SWING, BRIAN S.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 165 N. DIXIE BOX 519
Operator City VANDALIA
Operator State OH
Operator Country
Operator Zip code 45377
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 Yes
Departure Point Same as Event No
Departure Airport Code LAL
Departure City LAKELAND
Departure State FL
Departure Country
Departure Time 1020
Departure Time Zone EDT
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 Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
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 --