As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MOT - FLT 421 - UPON PREFLIGHT, THE CREW DISCOVERED THE RT NACELLE WAS LEAKING HYDRAULIC FLUID. INSPECTION REVEALED A CHAFED HYDRAULIC RETURN LINE IN THE RT NACELLE WALL. HYDRAULIC LINE WAS REPLACED AND LEAK CHECK PERFORMED. ACFT RELEASED FOR SERVICE. (Z)