Aircraft Accident/Incident Report

Maylene, Alabama 35114
Saturday, August 27, 1994 13:10 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT WAS ON A LOCAL FLIGHT, ABOUT TWO MILES NORTHWEST OF THE DEPARTURE AIRPORT. WITNESSES HEARD A LOUD NOISE, THEN OBSERVED A WING SEPARATE FROM THE GLIDER, WHILE THE GLIDER WAS MANEUVERING. THE MAIN WRECKAGE WAS FOUND IN A WOODED AREA, ABOUT 1,000 FEET EAST OF WHERE THE SEPARATED LEFT WING WAS LOCATED. FRACTURE EXAMINATION OF THE LEFT WING SPAR SHOWED EVIDENCE OF OVERLOAD. THERE WAS ALSO EVIDENCE OF HIGH G-LOADING ON THE WING SKIN AND SPAR CARRY THROUGH AREAS. PRIOR TO THE ACCIDENT, THE PILOT HAD LOGGED 53 HOURS OF FLYING TIME IN GLIDERS (153 FLIGHTS). HE HAD FLOWN THE SGS 1-34R ON TWO OCCASIONS PRIOR TO THE ACCIDENT, WITH A TOTAL FLIGHT TIME OF .8 HOURS. THE MAJORITY OF HIS FLYING TIME WAS LOGGED IN THE SGS 2-33.

NTSB Probable Cause Narrative

THE PILOT EXCEEDING THE DESIGN STRESS LIMITS OF THE AIRCRAFT, RESULTING IN AN OVERLOAD FAILURE OF THE WING SPAR, AND SEPARATION OF THE LEFT WING FROM THE AIRCRAFT. A FACTOR WAS THE PILOT'S LACK OF TOTAL FLYING EXPERIENCE IN THIS MODEL OF AIRCRAFT.

Event Information

Type of Event Accident
Event Date 8/27/1994
Event Day of the Week Saturday
Time of Event 1310
Event Time Zone Central Daylight Time
Event City MAYLENE
Event State ALABAMA
Event Country --
Zipcode of the event site 35114
Event Date Year 1994
Event Date Month 8
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1250 Central Daylight Time
Direction of event from weather observation facility (degrees) 10
Weather Observation Facility ID BHM
Elevation of weather observation facility 644
Distance of event from weather observation facility (units?) 25
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 6000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
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) 28
Dew Point at event time (in degress fahrenheit) 20
Wind Direction (degrees magnetic) 60
Variable Wind Indicator Unknown
Wind Speed (knots) 4
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) 1605
NTSB Notification Source --
NTSB Notification Date Aug 27 1994 12:00AM
NTSB Notification Time 1534
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 11:56AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1132S
NTSB Number ATL94FA166
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 SCHWEIZER
Aircraft Model SGS 1-34R
Aircraft Series Identifier SGS 1-34R
Aircraft Serial Number 62
Certified Max Gross Weight 840
Aircraft Category Glider
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines --
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 28 1993 12:00AM
Airframe hours since last inspection 37
Airframe Hours 1424
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BIRMINGHAM SOARING SOCIETY INC
Aircraft Owner Street Address P.O. BOX 20053
Aircraft Owner City BIRMINGHAM
Aircraft Owner State AL
Aircraft Owner Country
Aircraft Owner Zipcode 35216
Operator is an individual? --
Operator Name BIRMINGHAM SOARING SOCIETY INC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address P.O. BOX 20053
Operator City BIRMINGHAM
Operator State AL
Operator Country
Operator Zip code 35216
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 29A
Departure City MONTEVALLO
Departure State AL
Departure Country
Departure Time 1240
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 29A
Destination City
Destination State AL
Destination Country
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
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 --