As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER T/O DURING SLAT RETRACT GOT MASTER CAUTION LIGHT AND RT HYDRAULIC PRESS LOW ON OAP. RT PRESS WAS -0- AND QTY WAS 1 QT. RAN CK LIST AND AFTER FLAP SLATS EXT TO 15 DEGR QTY WAS 3 QTS. AFTER LDG AND FLAPS SLATS WERE RETRACT QTY WENT UP TO 6 QTS. FOUND CRACKED RIGID LINE AT RT ENG FILTER MODULE TO RT ENG PUMP. REPLACED LINE.