As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD INFLIGHT T336/09AUG. CREW REPORTED LANDING GEAR RETRACTION WAS SLOW FOLLOWED BY RT HYDRAULIC FLUID QUANTITY AT ZERO. LOWERED GEAR MANUALLY AND RETURNED TO ORD AND LANDED WITHOUT INCIDENT. FOUND LEAKING HYDRAULIC RETURN LINE ON RT SIDEWALL OF AFT CARGO. REPLACED HYDRAULIC LINE. SYSTEM GROUND CHECKED NORMAL OPS.