What was found
A 3B HYD CAUTION MESSAGE WITH SYSTEM 3 HYDRAULIC QUANTITY AT ZERO. (FLT 4772) FOUND BAD O-RING AT 3B HYDRAULIC PUMP PRESSURE LINE. REPLACED 3B HYDRAULIC PRESSURE LINE O-RING.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
A 3B HYD CAUTION MESSAGE WITH SYSTEM 3 HYDRAULIC QUANTITY AT ZERO. (FLT 4772) FOUND BAD O-RING AT 3B HYDRAULIC PUMP PRESSURE LINE. REPLACED 3B HYDRAULIC PRESSURE LINE O-RING.