What was found
FLT 7660 - BOI - FLIGHT CREW REPORTED HYD LOW QTY ADVICE ON T/O. MONITORED DURING FLIGHT, SLOWLY DECREASE. DIVERTED TO BOI. MX PERSONNEL FOUND HYD SERVICE PORT FITTING LOOSE, TIGHTEN IT, SERVICED, PRESSURED. OPERATIONALLY CHECKED SATISFACTORY AND AIRCRAFT WAS RELEASED TO RETURN FOR SERVICE. (A)