What was found
YIP - FLT 17790 - NR 2 ENGINE TAKES 5 SECONDS LONGER THAN NR 1 ENGINE TO SPOOL UP AND RUNS 50 DEGREES HOTTER THAN NR 1 ENGINE. ALL READINGS WITHIN LIMITS; HOWEVER, ENGINE CONDITION MONITORING SHOW ERRATIC EGT INDICATIONS. PERFORMED BORESCOPE INSPECTION OF NR 2 ENGINE. FOUND NR 6 AND NR 7 BURNER CANS SHIFTED APPROXIMATELY .0625 INCH. FOUND NR 8 BURNER CAN SHIFTED APPROXIMATELY .0625 OF AN INCH, AND DISCOVERED A 7 INCH CRACK AROUND THE CIRCUMFERENCE WELD, ADJACENT TO THE FUEL NOZZLE AREA. ENGINE REMOVED FOR REPLACEMENT OF BURNER CANS, AND DETAILED INSPECTION OF HOT SECTION. PART TOTAL CYCLES: 1,115.(X)