What was found
(CAN) VALVE ASSY, RUDDER TRIMMER CONTROL, PN: 89H1062-19, SN: H356 FAILED ON PRE DISASSEMBLY TEST. VALVE ACTUATED 2-3 TIMES AND THEN VALVE, PRIMARY SLIDE ASSY PN: 179828-4 WOULD NOT RETURN TO FULL EXTENDED POSITION CAUSING STEM, SECONDARY SLIDE PN: 179829-2 TO LOCK IN A FULLY ACTUATED POSITION. TROUBLESHOOTING REVEALED STOP, ROD PN: 179959-1 HAD FAILED. STOP PN: 179959-1 WAS FOUND IN 2 PIECES.