What was found
(CAN) A SUSPECTED BOOST PUMP INDICATION DEFECT WAS BEING WORKED WHEN IT WAS NOTICED THAT CENTRE FUEL TANK QUANTITY WAS INCREASING DURING PERIODS OF PUMP ACTIVITY. ON INSPECTION THE LT BOOST PUMP PRESSURE INDICATION LINE PT 601R6226135 WAS FOUND TO HAVE BEEN COMPLETELY CHAFED THROUGH AFTER RUBBING AGAINST LT MAIN FUEL FEED LINE PT 601R62272-21. FURTHER TO THAT, IT WAS ALSO NOTICED THAT THE BOOST PUMP CROSS FEED LINE PT 601R62299-3 WAS IN CONTACT WITH AND CHAFING AGAINST THE MAIN DIVIDING SPAR BETWEEN THE LT AND RT SIDES OF THE CENTRE FUEL TANK WHERE THE PIPE PASSED THROUGH IT.