What was found
DURING A RECENT FLIGHT DISPLAY UNITS 1,2, AND 3 BLINKED ON AND OFF. DISPLAY UNITS 1, 2 CYCLED ON AND OFF DISPLAY UNIT 3 WAS RED X`D. DURING THAT TIME AN AMBER (MAU 3A FAIL) MESSAGE DISPLAYED AND A BLUE (DATABASE CONFIG) MESSAGE ALSO DISPLAYED. AFTER 5-8 SECOUNDS, ALL DISPLAY UNITS RETURNED TO NORMAL. AFTER 10 SECONDS THE MESSAGES WENT AWAY. THE FAULT HISTORY WAS DOWNLOADED AND SENT TO MFG. THE NIC/PROC NR5 MODULE WAS REPLACED IAW MFG DIRECTION. CERT CHARLIE (ASC 904) WAS INSTALLED WHICH ADDED THE AUTO REVERSION OF THE DISPLAY UNITS IN CASE OF A FAILURE OPERATOR FEELS THIS IN CONJUNCTION WITH A BAD NIC/PROC NR5 CAUSED THE BLINKING OF THE DISPLAYS.