What was found
LEFT ENGINE VIBRATION MONITORING INOPERATIVE. REMOVED AND REPLACED ACCELEROMETER INDICATION, INCORRECT, SPORADIC, AND FLUTTERING. REMOVED AND REPLACED L/H ENG VIBRATION SENSOR IAW AMM 77-31-00. REMOVED AND REPLACED WIRE HARNESS FROM D4214P-J4214P IAW WDM 77-31-11 AND SWPM 20-10-11, VIBRATION STILL HIGH. CHECKED WIRES W355-01TR-20 TO 232R-22 AND W356-01TW-20 TO 232B-22 WITH ACCEPTABLE RESULTS IAW WDM 77-31-11. REACTIVATED ENG 1 ACCELEROMETER IAW AMM 77-31-01 PUTTING SYSTEM BACK IN SERVICE.