What was found
LOSS OF HYD B ON DEP. RAN CHECKLIST; TURN OFF B-PUMP IN UNDER A MIN. QTY WAS ZERO<[01] FOUND LEAK ON SYS B HYD FLOW LIMITING VALVE. UPON REMOVAL; FOUND UNION ADAPTER CRACKED BETWEEN THREADS CAUSING ALL SYSTEM B HYD FLUID TO DRAIN. REMOVED AND REPLACED SYS B EMDP FILTER TO INSPECT FOR PARTICLES REF AMM 29-11-41. NO FINDINGS.;[02] REMOVED AND REPLACED #2 ENG CASE DRAIN FILTER (TO INSPECT FOR PARTICLES) PER AMM 29-11-51. FILTER WAS CLEAN; NO PARTICLES.;[03] REMOVED AND REPLACED TRAILING EDGE FLAP FLOW LIMITER IAW AMM 27-51-67. OPS TEST AND LEAK TEST GOOD AT THIS TIME.