As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ENG START & TAXI BLUE PUMP PRESS LOW LT STAYED ON, THEN HYD QTY LOSS OCCURRED & RETURNED TO BLOCKS. QTY STABILIZED AT BOTTOM OF GREEN ARC. CLEANED & RESECURED CONNECTOR AT ENG DRIVEN PUMP. SERVICED HYD SYS HEAD PRESS & HYD FLUID QTY, PUMP OPS CK NORMAL & NO LEAKS NOTED IAW A300 AMM 29-10-00.