Aircraft Accident/Incident Report

Turners Falls, Massachusetts 01376
Wednesday, May 11, 1983 18:05 EDT

NTSB Narrative Summary Released at Completion of Accident

ON 4/18/83, THE ULTRALIGHT VEHICLE WAS DAMAGED BY HIGH WINDS. THIS NECESSITATED THE REPLACEMENT OF THE FRONT & REAR SPARS AS WELL AS THE BATTENS WHICH PROVIDED CURVATURE TO THE UPPER WING SURFACE. PRIOR TO A TEST FLT, A WEIGHTED TAIL WHEEL WAS ALSO INSTALLED. SUBSEQUENTLY, A TEST PLT TOOK OFF TO EVALUATE THE ULTRALIGHT. WITNESSES OBSERVED THAT THE PLT CLIMBED TO ABOUT 1000 FT, THEN BEGAN A SERIES OF MANEUVERS. WHILE PERFORMING A MANEUVER, SIMILAR TO A LAZY 8, WITH BANK ANGLES UP TO 60 TO 90 DEG, THE ULTRALIGHT'S LEFT WING FOLDED. THE VEHICLE THEN ENTERED AN UNCONTROLLEDDESCENT & CRASHED. AN EXAM OF THE WRECKAGE REVEALED THAT THE AFT SPAR TIP HAD ROTATED AROUND THE AFT SPAR IN SUCH A MANNER THAT THE OUTBOARD WING PANEL HAD BENT DOWN & REARWARD. HOLES HAD NOT BEEN DRILLED & STEEL POP RIVETS HAD NOT BEEN INSTALLED, PER INSTALLATION INSTRUCTIONS, TO PREVENT THE SPAR TIP FROM ROTATING. ALSO, THE PLT'S BLOOD ALCOHOL LEVEL WAS FOUND TO BE 95 MG%. THE TEST PLT ALSO PERFORMED MAINTENANCE ON THE ULTRALIGHT.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 5/11/1983
Event Day of the Week Wednesday
Time of Event 1805
Event Time Zone Eastern Daylight Time
Event City TURNERS FALLS
Event State MASSACHUSETTS
Event Country --
Zipcode of the event site 01376
Event Date Year 1983
Event Date Month 5
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 Unknown
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1745 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 215
Weather Observation Facility ID BAF
Elevation of weather observation facility 270
Distance of event from weather observation facility (units?) 27
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 4500
Lowest Non-Ceiling Height 4500
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 25
Air Temperature at event time (in degrees celsius) 10
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 360
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) --
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 NTSB
NTSB Docket Number (internal use) 3131
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 25562
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number NONE
NTSB Number NYC83FU004
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 103: Ultralight
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name VECTOR
Aircraft Model 610
Aircraft Series Identifier 610
Aircraft Serial Number 1244
Certified Max Gross Weight 445
Aircraft Category Ultralight
Aircraft Registration Class Not Registered
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
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 --
Airframe Hours 70
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name AERODYNE SYSTEMS, INC.
Aircraft Owner Street Address 194 MILLERS FALLS ROAD
Aircraft Owner City TURNERS FALLS
Aircraft Owner State MA
Aircraft Owner Country
Aircraft Owner Zipcode 01376
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 Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1800
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 Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 22 2001 3:26PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 34
Runway Length 3000
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --