NTSB Identification: DEN87LA175.
The docket is stored on NTSB microfiche number 34691.
Accident occurred Wednesday, July 08, 1987 in HOBBS, NM
Probable Cause Approval Date: 11/29/1988
Aircraft: SCHEMPP-HIRTH NIMBUS II, registration: N71JD
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 PVT PLT WAS FLYING IN A NATIONAL SOARING CONTEST. THE GLIDER WAS TOWED TO 2000 FEET AGL AND RELEASED. THE PLT REPORTED MAKING A CLIMBING RIGHT TURN AFTER RELEASE, HOWEVER HE NOTICED THAT THE CONTROL STICK WAS MORE AFT THAN NORMAL. AS THE FLIGHT PROGRESSED, THE STICK CAME TO A FULL AFT POSITION. THE PLT WAS UNABLE TO GET ANY UP ELEVATOR CONTROL RESPONSE. THE ALTITUDE HAD DETERIORATED TO 1300 FEET AGL. THE PLT BAILED OUT SUCCESSFULLY. THE ACFT INVERTED, ENTERED A FLAT SPIN AND CRASHED. THE PLT REPORTED THAT HE BELIEVED THE ELEVATOR CONTROL WAS INADVERTENTLY ASSEMBLED IMPROPERLY. EXAMINATION OF THE WRECKAGE DID NOT REVEAL EVIDENCE TO EXPLAIN REPORTED LOSS OF ELEVATOR CONTROL.

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

FLT CONTROL SYST,ELEVATOR CONTROL..UNDETERMINED

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