Okeechobee County Airport
Aircraft Accident/Incident Report

Okeechobee, Florida 34974
Wednesday, March 11, 1992 14:44 EST

NTSB Narrative Summary Released at Completion of Accident

A WITNESS STATED THAT HE OBSERVED THE AIRPLANE ROLL INTO A 90 DEGREE BANK ANGLE TO THE RT THEN OBSERVED IT DESCENDING NOSE & LT WING LOW UNTIL IMPACT WITH THE WATER. HE FURTHER STATED THAT THE ENGINE WAS RUNNING NORMALLY UNTIL IMPACT. ALL COMPONENTS OF THE AIRPLANE WERE RECOVERED WITH THE EXCEPTION OF THE INBOARD SECTION OF THE LEADING EDGE OF THE LT WING. NO WITNESS REPORTED SEEING ANY OBJECT FALLING OFF THE AIRPLANE BEFORE IMPACT. EXAMINATION OF THE AIRPLANE REVEALED NO EVIDENCE OF FLIGHT CONTROL FAILURE OR MALFUNCTION.

NTSB Probable Cause Narrative

FAILURE OF THE PILOT-IN-COMMAND TO MAINTAIN AIRSPEED (VS) RESULTING IN INADVERTENT STALL/MUSH.

Event Information

Type of Event Accident
Event Date 3/11/1992
Event Day of the Week Wednesday
Time of Event 1444
Event Time Zone Eastern Standard Time
Event City OKEECHOBEE
Event State FLORIDA
Event Country --
Zipcode of the event site 34974
Event Date Year 1992
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport OKEECHOBEE COUNTY
Event Location Nearest Airport ID OBE
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 3
Degrees magnetic from airport 147
Airport Elevation 34
Weather Briefing Completeness Partial - limited by pilot
Investigator's weather source Weather Observation Facility
Time of the weather observation 1452 Eastern Standard Time
Direction of event from weather observation facility (degrees) 43
Weather Observation Facility ID PBI
Elevation of weather observation facility 19
Distance of event from weather observation facility (units?) 51
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 18000
Lowest Non-Ceiling Height 9500
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) 24
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 218
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 46236
Date of most recent change to record Dec 11 2000 2:48PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N11AG
NTSB Number MIA92LA096
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name ANKERMAN, DONALD L.
Aircraft Model SX300
Aircraft Series Identifier SX300
Aircraft Serial Number FAI-11
Certified Max Gross Weight 2400
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 Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection Jan 2 2000 12:00AM
Airframe hours since last inspection --
Airframe Hours 44
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name FLYING ANKERS, INC.
Aircraft Owner Street Address 311 GARDENS DR. 204
Aircraft Owner City POMPANO BEACH
Aircraft Owner State FL
Aircraft Owner Country
Aircraft Owner Zipcode 33069
Operator is an individual? --
Operator Name FLYING ANKERS, INC.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 311 GARDENS DR. 204
Operator City POMPANO BEACH
Operator State FL
Operator Country
Operator Zip code 33069
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 LNA
Departure City WEST PALM BEACH
Departure State FL
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt crash at destination city
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 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --