What was found
ON INITIAL TAKEOFF AT APPROXIMATELY 200 FEET AGL BOTH HYDRAULIC LIGHTS CAME ON AND TOTAL SYSTEM PRESSURE WAS ZERO PSI. THE FLIGHT CREW EXECUTED THE CHECKLIST. EVENTUALLY THE RT SIDE PUMP BEGAN WORKING AGAIN. RETURNED AND MADE AN UNEVENTFUL LANDING. SENT RESCUE TRUCKS TO THE RUNWAY. THE TRUCKS FOLLOWED UNTIL IT WAS PARKED. THE RESERVIOR PRECHARGE LINE WAS FOUND CHAFFED AT THE RESERVOIR PRESSURE GAUGE. THE HYDRAULIC SERVICE LINE WAS REMOVED AND REPLACED IAW THE SD3-30. A COMPLETE HYDRAULIC SERVICE WAS COMPLIED WITH IAW MM. OPS CHECK GOOD, APPROVED FOR RETURNED TO SERVICE. (K)