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NTSB Report
July 5, 1987 · Burkhart Grob G-103A · N930BG
Mt. Airy, NC
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 5, 1987
Injury Outcomes
No injuries (2 uninjured)
Location
Mt. Airy, NC
Aircraft
Burkhart Grob G-103A
Tail Number
N930BG
Operator
Wilson Brown
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ATL87LA199
THE INSTRUCTOR STATED THIS WAS THE SECOND FLIGHT OF THE DAY WITH THE STUDENT. THEY HAD RELEASED FROM AN AIR TOW AT 1,500 FEET AGL. THE INSTRUCTOR WAS DEMONSTRATING GLIDE SLOPE CONTROL FOR BEST FINAL GLIDE. WHEN THE SAILPLANE WAS ABOUT 1,000 FEET AGL AND ONE MILE NW OF THE AIRPORT HE TURNED TOWARD THE RUNWAY AND NOTED A SINK RATE OF ABOUT 8 KNOTS. HE INCREASED SPEED AND THE SINK RATE WENT TO 10 KNOTS. THESE SINK RATES TRANSLATE TO ABOUT 810 AND 1013 FEET PER MINUTE, RESPECTIVELY. THIS WOULD HAVE PERMITTED THE SAILPLANE TO COVER A MAXIMUM DISTANCE OF 1 1/2 MILES. TWO SETS OF POWERLINESAND A CHAIN LINK FENCE WERE BETWEEN THE SAILPLANE AND THE RUNWAY. THE AIRCRAFT COLLIDED WITH THE FENCE.
Full Narrative
THE INSTRUCTOR STATED THIS WAS THE SECOND FLIGHT OF THE DAY WITH THE STUDENT. THEY HAD RELEASED FROM AN AIR TOW AT 1,500 FEET AGL. THE INSTRUCTOR WAS DEMONSTRATING GLIDE SLOPE CONTROL FOR BEST FINAL GLIDE. WHEN THE SAILPLANE WAS ABOUT 1,000 FEET AGL AND ONE MILE NW OF THE AIRPORT HE TURNED TOWARD THE RUNWAY AND NOTED A SINK RATE OF ABOUT 8 KNOTS. HE INCREASED SPEED AND THE SINK RATE WENT TO 10 KNOTS. THESE SINK RATES TRANSLATE TO ABOUT 810 AND 1013 FEET PER MINUTE, RESPECTIVELY. THIS WOULD HAVE PERMITTED THE SAILPLANE TO COVER A MAXIMUM DISTANCE OF 1 1/2 MILES. TWO SETS OF POWERLINESAND A CHAIN LINK FENCE WERE BETWEEN THE SAILPLANE AND THE RUNWAY. THE AIRCRAFT COLLIDED WITH THE FENCE.
Flight
Event TypeAccident
Event Time14:56 EDT
Nearest AirportMt. Airy-Surray County (0nm N)
Runway18
Runway Length3500 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBurkhart Grob G-103A
Tail NumberN930BG
Aircraft CategoryGli
DamageSubstantial
OperatorWilson Brown
Operating RulePart 91
Engines0
Engine TypeUnknown
Engine DetailsUnknown · UNK · Unknown
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 43 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind330° @ 5 kt, gusting 10 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO