What was found
SAW - DURING MBV-1 INSPECTION MAINTENANCE DISCOVERED, THE AFT BRACKETS ON THE UPPER AFT ENGINE PANELS (475AT AND 485AT) WERE CHAFING THE NR 4 AND NR 5 ENGINE ZEE MOUNT TUBES ON THE NR 1 AND NR 2 ENGINES. MAINTENANCE REMOVED AND REPLACED NR 4 AND NR 5 ZEE MOUNT TUBES ON NR 1 AND NR 2 ENGINES IAW ATR FAX AIRAMS/T/ATR/30176/97. THE BRACKETS WERE DEFERRED FOR 20 DAYS IAW ABOVE MENTION FAX. AIRCRAFT WAS RETURNED TO SERVICE. (M)