As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR RETURN FOR LOUD VIBRATING RUMBLING NOISE AROUND AND BELOW F/O`S FEET CLIMBOUT AT 10,500FT TO 11,000FT LASTED FOR 20 SECS. ACCOMPLISHED VIBRATION WORKSCOPE AND FOUND NR 2 BRAKE ACCUMULATOR AND GAUGE BLOWN OUT WITH HYDRAULIC FLUID IN TRU AND BRAKE VALVE COMPARTMENT. REMOVED AND REPLACED NR 2 SYSTEM BRAKE ACCUMULATOR AND GAUGE. OP`S AND LEAK CK`S GOOD. REF AMM 32-43-16,32-43-17. NO OTHER DEFECTS NOTED.