As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE WORKING ON ANOTHER NEARBY AIRCRAFT IN HANGAR, MECHANIC NOTICED PUDDLE OF HYDRAULIC FLUID UNDER THE AZTEC. MONITORED FOR ONE HOUR, INCREASED IN SIZE OF PUDDLE COMFIRMED LEAK TO BE MAJOR. OIL RAN FROM NOSE NACELLE AREA TO MID-CENTER SECTION BEFORE DRIPPING DOWN. CHECKED HYDRAULIC SYSTEM. BRAKE RESERVOIR FOUND EMPTY. RIGHT BRAKE MASTER CYLINDER LEAKING. TOP SEALS. TSO: 1045.7 HR. INSTALLED 17 OCT 91. REPLACED UNIT - BLED AND SERVICED.