What was found
MAIN GEAR AND USED ALT FLAP EXT IN FLT AND BOTH A-SYS LOW PRESS LIGHT CAME ON, FOLLOWED BY OVERHEAT TO SYS. OVERHEAT LIGHT WENT OUT, BUT HAD A-SYS PRESS WITH GOOD A-SYS QTY. RED TAB PROCEDURE AND EWR MX SUGGESTIONS, DID NOT REGAIN A-SYS PRESS. NOTE - IN RIC MX REQ FLAPS 5 DEG WITH GROUND INTER OPEN TO FUEL A/C BECAUSE NR 3 FUEL S/O VALVE WAS INOP. REMOVED AND REPLACED MANIFOLD AND PARTS. REMOVED AND REPLACED THE A-SYS MODULE IAW MM 29-41 HS 107008. A-SYS SERVICED, PRESS AND LEAK CHECK GOOD, ALL IND NORMAL.