What was found
(CAN) DURING CLIMB, FLAPS STUCK AT 8 DEGREES UPON RETRACTION SELECTION. ELECTED TO CONTINUE ON WITH THE SCHEDULED FLIGHT & LANDED WITHOUT FURTHER INCIDENT. UPON ARRIVAL THE ACFT WAS REMOVED FROM SERVICE & THE FECU INTERROGATED. THE LT BPSU WAS REPLACED. ALL ACTUATORS LUBRICATED & FLAP SYS TESTED SERVICEABLE. AS A PRECAUTIONARY MEASURE, RT NR 1 & 2 FLAP ACTUATORS WERE REPLACED DUE TO LIGHT GREASE CONTAMINATION.