What was found
DURING T/O AND FLAP RETRACTION AMBER FLAP LIGHT REMAINED ON AT FLAPS 2. SLATS 2367 WERE OUT AND THE AMBER LIGHT UNDER NR 6 SLAT POS ON SO PANEL WAS ON. ATTEMPTED TO RECTIFY WITH THE QRH. NO LUCK. PUT FLAPS BACK TO 5 AND LANDED AT BIL IAW GOC DIRECTIVES. RAN FLAP CONTROL TO BOTH, 2 DEGREES AND 5 DEGREES NUMEROUS TIMES. NO TROUBLE OUT OF L/E SLAT NR 6, L/E FLAP NR 5 DID NOT EXTEND OR RETRACT PROPERLY. NR 5 L/E FLAP REMAINED STUCK IN EXTENDED POSITION. TRIED EXERCISING IT W/O HYD PWR ON, NO HELP. NR 5 L/E F. REMAINS IN THE EXTENDED POSITION. R&R NR 5 L/E FLAP ACTUATOR. ACTUATOR OPS AND LEAK CKS GOOD REF 27-81-022-4.