What was found
ENG VIBE / DECLARED EMERGENCY # 1 ENG VIBE 2.2. INCREASED TO CLIMB TO F170.RAN ABO VIBE CHECK LIST. AT IDLE VIBE WASD 3.6 AND GETTING WORSE.RAN @ 50% TO KEEP VIBE ABOVE 4.0. PHYSICALLY SHAKING AIRCRAFT, ENG 1 PRECAUTIONARY SHUTDOWN PER CAPT. DECISION. RAR LH ENGINE FWD ACCELEROMETER IAW GE LMM 77-00-00. SEE ITEM 2 FOR VIBE CHECK. ACCOMPLISHED VISUAL INSPECTION, CLEANING AND CONTINUITY CHECK OF W9 HARNESS IAW SPWM 20-64-00. CONTINUITY CHECK PASSED. ACCOMPLISHED VISUAL INSPECTION OF LH ENGINE FAN ABRADABLE STRIP IAW GE LMM 72-23-01. NO DEFECTS NOTED OUTSIDE OF ALLOWABLE LIMITS.