What was found
WHILE PERFORMING ENGINE RUNS FOR RIGHT ENGINE FLOW PACK CHANGE FOUND FUEL LEAK FROM FUEL LINE FROM FCU TO TOP OF START CONTROL UNIT. FITTING CRACKED ABOVE SCU. REMOVED CRACKED FUEL LINE FROM FCU TO TOP OF START CONTROL UNIT. INSTALLED OVERHAULED LINE P/N 3011849 FROM DALLAS AIRMOTIVE. PERFORMED LEAK AND OPERATIONAL CHECKS SATISFACTORY. WORK ACCOMPLISHED IN REF TO P&W PT6A-28 MAINT MANUAL CHAPTER 73-10-03. LESS THAN ONE MONTH AND 20 HOURS LATER SAME FUEL LINE CRACKED AGAIN, IN SAME PLACE. REMOVED AND REPLACED CRACKED FUEL LINE BETWEEN THE FCU AND THE SCU OF RT ENGINE. P/N 3011849, OVERHAULED BY DALLAS AIRMOTIVE, S/N N/A, SEE 8130-3 DATED 9/18/2007. PERFORMED LEAK CHECKS SATISFACTORY. SAFTIED BOTH B-NUTS. WORK ACCOMPLISHED IN REF TO P&W PT6A-28 MAINT MANUAL CHAPTER 73-10-03.