NTSB Identification: ATL89LA016.
The docket is stored on NTSB microfiche number 37072.
Accident occurred Saturday, October 22, 1988 in WHITWELL, TN
Probable Cause Approval Date: 07/03/1989
Aircraft: SCHEMPP-HIRTH DISCUS-B, registration: N321SB
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE PLT RPRTD THAT THERMAL LIFT DETERIORATED DRG THE RETURN LEG OF A X-COUNTRY FLT & HE ELECTED TO MAKE AN OFF APRT LNDG IN A HAY FIELD. AS HE WAS ON FINAL APCH ON A WESTERLY HDG, HE SAW A PREVIOUSLY UNDETECTED POWER LINE ACROSS THE FIELD, WHICH REQD A RAPID DSCNT (USING SPOILERS) TO AVOID A COLLISION. HOWEVER, DRG THE EVASIVE MANEUVER, THE GLIDER CONTACTED UNEVEN TERRAIN & WAS SUBSEQUENTLY DAMAGED. THE PLT RPRTD THAT THE SUN & TREES OBSCURED THE POWER LINE. ALSO, HE STATED THAT IF THE APCH HAD BEEN TO THE EAST, HE WOULD HAVE SEEN THE POWER LINE IN TIME TO MAKE SMOOTHER ADJUSTMENTS FOR THE SHORT LANDING.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND


Contributing Factors

LIGHT CONDITION..SUNGLARE



Contributing Factors

VISUAL/AURAL PERCEPTION..PILOT IN COMMAND


Contributing Factors

OBJECT..WIRE,TRANSMISSION



Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN

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