Round Lake Airport
Aircraft Accident/Incident Report

Round Lake, New York 12151
Sunday, January 27, 1991 16:50 EDT

NTSB Narrative Summary Released at Completion of Accident

THE AMATEUR BUILT ACFT WAS ON ITS 1ST FLT AFTER BEING CONSTRUCTED. IT FLEW ABOUT 5 MIN BEFORE THE OWNER/BUILDER/PLT RETURNED THE PLANE FOR LANDING. AT ABOUT 75 FT AGL ON FINAL APCH, BOTH WINGS FAILED & THE ACFT CRASHED. INVESTIGATION REVEALED THAT STEEL BOLTS WERE MISSING FROM THE OUTBOARD WING STRUT ATTACHMENT FITTINGS, RIVETS THAT HELD THE OUTBOARD ATTACHMENT FITTINGS TO THE WING HAD SHEARED OFF. THE REASON FOR THE MISSING BOLTS AND SHEARED REVITS WAS NOT VERIFIED. THE ACFT HAD BEEN REGISTERED WITH THE FAA, BUT THERE WAS NO AIRWORTHINESS CERTIFICATE. ALSO, NO WEIGHT & BALANCE DATA WAS FOUND IN THE ACFT, THE PLT WAS NOT AN FAA CERTIFIED AIRMAN, NOR DID HE POSSESS A VALID FAA MEDICAL CERTIFICATE.

NTSB Probable Cause Narrative

IN-FLIGHT STRUCTURAL FAILURE OF THE OUTBOARD WING ATTACHMENT FITTINGS ON BOTH WINGS DUE TO AN UNDETERMINED REASON.

Event Information

Type of Event Accident
Event Date 1/27/1991
Event Day of the Week Sunday
Time of Event 1650
Event Time Zone Eastern Daylight Time
Event City ROUND LAKE
Event State NEW YORK
Event Country --
Zipcode of the event site 12151
Event Date Year 1991
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport ROUND LAKE
Event Location Nearest Airport ID NY46
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 1
Degrees magnetic from airport 0
Airport Elevation 175
Weather Briefing Completeness Not pertinent
Investigator's weather source Witness
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Dusk
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Thin Overcast
Sky Condition for Lowest Ceiling Unknown
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) -18
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 315
Variable Wind Indicator Variable
Wind Speed (knots) 5
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency FAA
NTSB Docket Number (internal use) 1486
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 45506
Date of most recent change to record Dec 12 2000 9:14AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N71817
NTSB Number NYC91DFA02
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 HAYES
Aircraft Model KOLB/TWINSTAR
Aircraft Series Identifier KOLB/TWINS
Aircraft Serial Number
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 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 0
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name CLIFFORD G HAYES
Aircraft Owner Street Address 2 DEERFIELD PLACE
Aircraft Owner City BALLSTON SPA
Aircraft Owner State NY
Aircraft Owner Country
Aircraft Owner Zipcode 12020
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 Yes - certificate holder
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 Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 0
Departure Time Zone
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 Approach
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 14
Runway Length 2000
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --