What was found
AFTER 13.0 HOURS OF FLIGHT AND DURING A TRANSFER INSPECTION AT THE USAFA, A UNC MAINTENANCE TECHNICIAN DISCOVERED THE WRONG CAP SCREW INSTALLED IN THE RIGHT OTBD ELEVATOR (T67M031-008) ATTACHMENT BRACKET. THE SCREW THREADS WERE NOT ENGAGED IN THE ANCHORING NUTPLATE. THE SCREW WAS .75 INCH TOO SHORT. IF IT WERE NOT FOR A SECONDARY SECURING CIRCLIP, THE SCREW COULD HAVE DISLODGED DURING FLIGHT. THE ENTIRE USAF SLINGSBY FLEET HAS BEEN INSPECTED. NO OTHER REPORTED CASES. THE ELEVATOR ASSEMBLY IS ASSEMBLED IN ENGLAND. TEXAS ASSEMBLY MAY HAVE DISASSEMBLED DURING PRODUCTION. THIS IS A SAFETY OF FLIGHT ISSUE.