What was found
ON CLIMB-OUT, ELEV FEEL DIFFERENTIAL PRESS LIGHT BEGAN TO FLICKER, HYDRAULIC PRESSURE AND QUANTITY GOOD ON ALL SYSTEMS, ABOUT 5 MINUTES LATER, THE HYDRAULIC SYSTEM-A OVERHEAT LIGHT ILLUMINATED. TURNED NR 1 PUMP BACK ON, WAS GOOD FOR ABOUT 2 MINUTES, AND LIGHT RE-ILLUMINATED WITH LOSS OF PRESSURE AND QUANTITY ALMOST INSTANTANONEOUSLY. HAD UNEVENTFUL LANDING, FOUND ELEVATOR HYDRAULIC MODULE LEAKING FROM PLUG AT COMPENSATOR. REPLACED ELEVATOR HYDRAULIC MODULE.