What was found
DURING CRUISE, A-SYS HYD QTY NOTED LOW, READING LESS THAN HALF GALLON. FOLLOWED EMERGENCY PROCEDURES AND FOLLOWED LOSS OF A-SYSTEM MANUAL GEAR EXTENSION AT IAD. GEAR PINS INSTALLED AND TOWED TO GATE. FOUND SYS-A HYD TRANSMITTER LEAKING INTERNALLY. REPLACED SAME IAW MM 29-31-00, LEAK AND OPS CHECKS GOOD. SERVICED HYD A-SYS TO FULL AND REMOVED GEAR PINS.