As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYD B WENT FROM 93 TO 76. BELLY OF PLANE HAS HUGE DARK STREAK FROM WHEEL WELL TO APU FOUND B SYSTEM CASE DRAIN FILTER HOUSING LEAKING. R&R CASE DRAIN 00-0585-3-0455,QTY :1 00-0585-3-0440,QTY :1 40-0595-3-1976,QTY FILTER AND REPLACED ORING SEALS FOR FILTER HOUSING. PER AMM :1 29-11-41 OPS AND LEAKED CHECKED GOOD. SERVICED HYDRAULIC TO 94 PERCENT. PARTS USED: 29-2911-3-0052,QTY :1 ADD EMP:U238137