What was found
FUEL FLOW WAS ERRATIC. SLIGHT FUEL LEAK FROM PUMP DRAINS. FOUND DEBRIS IN SERVO SCREENS. TEAR DOWN REPORT SHOWED DRIVE COUPLINGS PITTED, BLADES AND LINERS SCORED, ROTORS WORN. DEBRIS IN SERVO FILTER APPEARED TO BE PIECES OF THE LINER. REPLACED BOTH PUMPS. NOTE: THE SAME PN ENGINE DRIVEN FUEL PUMPS WERE INSTALLED NEW BY MFG AT ENGINE O/H. THE RT PUMP GOT REPLACED AFTER 372 HRS AND THE LT WAS REPLACED AFTER 389.7 HRS. THE PUMPS REMOVED AT THIS TIME WERE NEW AT INSTALL AND HAD 776.3/ 794 HOURS RESPECTIVELY. ENGINE SN: L-RL253661A, R-RL428861A.