What was found
ON APPROACH, BEFORE AND AFTER SLATS EXT, RUDDER PEDALS WERE EXTREMELY LOOSE. TRAVEL BETWEEN PEDALS WAS - 3-4" EACH WITH NO RUDDER MOVEMENT. ALSO NO RESISTANCE IN THE FIRST 3-4" OF PEDAL TRAVEL. VERIFIED 3-4" OF RUDDER PEDAL MOVEMENT BEFORE ANY MOVEMENT OF RUDDER. PER CREW DEBRIEF A/C HAD BEEN IN HEAVY RAIN. MOVED A/C TO HANGER. AFTER A COUPLE OF HOURS LARGE AMOUNT OF WATER DRAINED FROM TAIL AND WHEEL WELLS OF A/C. FOUND CHUNK OF ICE ON INSIDE OF ACCESS DOOR OF TAIL COMP. INSPECTED RUDDER PEDALS, QUADRANTS AND CABLE RUNS, NO DEFECTS NOTED. INSPECTED AND LUBED RUDDER CONTROL MECHANISM PER SMP. NO DEFECTS NOTED. PERFORMED RTS OF FCC 1 AND 2 RUDDER SYSTEM ALL TESTS PASSED. OKAY FOR SERVICE.