What was found
AFTER DEPARTING IND, PILOT NOTICED LOW 'A' SYSTEM HYDRAULIC QTY. SOON AFTER LOW PRESSURE OF NR 1 HYD PUMP 'A' SYSTEM MASTER CAUTION WARNING FOLLOWED BY NR 2 HYD PUMP 'A' SYSTEM MASTER CAUTION WARNING.. CREW IMPLEMENTED QHR PROCEDURE AND LANDED AT STL. UPON INSPECTION ON GROUND, NR 1 ENGINE 'A' PUMP PRESSURE LINE WAS EXCESSIVELY CHAFED. NR 1 ENGINE 'A' PUMP PRESSURE LINE WAS REPLACED. AIRCRAFT WAS REPOSITIONED TO EKO WITHOUT FURTHER PROBLEMS. (M)