What was found
STABILIZER FAILS TO TRIM NOSE UP ASSOCIATED SPEED TRIM FAIL LIGHT ILLUNINATED PER CREW, BOTH CAPT AND F/O SWITCHES WOULD NOT TRIM NOSE UP BUT TRIMMING DOWN WAS OK. INITIAL EVAL CYCLED STAB TRIM BREAKERS AND GOT BOTH ELECTRIC STAB TRIM SWITCHES TO MOVE UP AND DOWN. DFCS BITE SHOWS TWO FAULTS ON LAST LEG, SAME FAULTS ON CHANNEL A & B. RESET BOTH FCCS AND PERFORMED SPEED/STAB TRIM SURFACE TEST REF FIM 22-11 TASK 849. TEST PASSED. STAB TRIM ABLE TO TRIM UP AND DOWN WITH NO DISCREPANCIES.