What was found
ENG VIB MONITOR R RIGHT ENGINE AIRBORNE VIBRATION MONITORING (AVM) SYSTEM IS INOPERATIVE, OR LOSS OF TACHOMETER DATA. STATUS MSG-7706042 INACTV ER INTER -MAT MSG. 77-06042 INTERMIT. IN CRUISE. -INF- :MSG 77-06042 E-FLANGE ACCELEROMETER FAULT HIT AT HIGH INTERMITTENT COUNT (38 HITS PER LEG) SO IT IS NOT TYPICAL NUISANCE. REF FIM 77-31 TASK 814, CHECK CONDITION AND SECURITY OF INTERMEDIATE CASE ACCELEROMETER & HARNESS INCLUDING CLAMPS. SECURE AS NEEDED. IF NO CAUSE FOUND, REPLACE E-FLGE INT CASE ACCELEROMETER. REPLACED ENGINE VIBRATION ACCELEROMETER, OPS CHECK IS GOOD.