What was found
NR 3 PNEUMATIC MANIFOLD FAIL LIGHT CAME ON, WING ANTI-ICE WAS USED. FOUND MASSIVE LEAK BETWEEN SLATS R4 AND R5. REPLACED PERISEAL ON CONNECTOR SLEEVE. PRESS NR 3 MAN AND RAN NR 3 PACK TO LEAK CK DUCTS, CK NORM. ACCOMPLISHED TEST OF WING ANTI-ICE SYS PER MM 30-11-00-2.