What was found
VIBRATION - NOISE ENCOUNTERED IN FLIGHT. REF FLT MANUAL 12.20.1. NEED TO COMPLETE VIBRATION REPORTING CHECKLIST AND DEBRIEF MAINTENANCE (SAMC) ON ARRIVAL TO DESTINATION STATION. CREW COMMENTS: SLIGHT VIBRATION IN AFT CABIN ON CLIMB TO FL230 FELT IN COCKPIT FROM 8000 TO 13000FT. WITH SAMC ACP MT53-005 WHICH LEAD TO 27-34-00-200-001. NO DAMAGE OR DEFECTS FOUND NO NOTABLE PLAY IN SYSTEM MOST WAS LESS THEN .18 INCH.