What was found
(CAN) RT ENG FUEL FILTER BYPASS LGT ILLUMINATED IN FLT. ALL OTHER INDICATIONS NORMAL. TROUBLESHOT IAW FIM 73-05 TASK 801 CDU ENG NBR 2 FUEL FILTER STATUS - BYPASSED- REMOVED RT ENG FUEL FILTER IAW AMM TASK 73-11-01-000-801-FOO NO DEBRIS NOTICED UPON INSP INSTALLED RT ENG FUEL FILTER IAW AMM TASK 73-11-02-400-801-FOO. REMOVED RT ENG DIFF PRESS SW IAW AMM TASK 73-34-01-000-801-FOO. INSTALLED REPLACEMENT RT ENG DIFF. PRESS SW IAW AMM TASK 73-34-01-400-801-F00. PERFORMED ENG IDLE LEAK CHKS OK. INDICATIONS OK NO FAULTS. ALL WORK CARRIED OUT IAW CARS 571.11 ACT DIVERTED FROM PLANNED FLIGHT.