What was found
UNIT RECEIVED ON 13 NOV 2006. UNIT PROCESSED ON A REPAIR WORKSHOP IAW CUSTOMER REQUIREMENTS. PUMP FAILED AS RECEIVED BENCH TEST FOR LOW FUEL FLOWS. PUMP DISASSEMBLED IAW CMM REF 73-11-1 TO INVESTIGATE INCOMING TEST FINDINGS. DISASSEMBLY OF FUEL PUMP REVEALED EXTENSIVE DAMAGE TO IMPELLER ASSY. PN 216916. DAMAGE WAS CAUSED AS A RESULT OF QTY 2 NUTS ENTERING FUEL PUMP FROM AN UNKNOWN EXTERIOR SOURCE.