What was found
AT FL 360 RT ENG VIB WENT INTO AMBER BAND TWICE, MAX 2.7. FOLLOWED QRH, PROBLEM DID NOT RETURN DURING DIVERSION REF FIM 71-05-00-815-808-ROO. INSPECTED MAG CHIP DETECTORS & OIL FILTERS. FOUND TO BE CLEAN. RAN ENG, OPERATIONS CHECKED NORMAL. ACFT OK FOR SERVICE. SEE LOG PAGE 8114668 FOR VIBRATION SURVEY.