As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 610, DFW-JFK. AT 16000' JUST SOUTH OF LENDY INTERSECTION A HYD B RSRV LO AIR PR ECAM MESSAGE/ SECURED PER QRH SYSTEM PRESSURE RESTORED AT LOWER ALTITUDE.; FOUND BLUE HYD. SYS OVER SERVICED PER TSM 29-12-00-810-801-A. R/R AIR PRESSURE SWITCH IAW AMM 29-34-11-000-002-A. NO LEAKS OF HYDRAULIC CONNECTIONS. ADJUSTED BLUE HYD. FLUID TO CORRECT LEVEL. OPS CHK GOOD. A/C OK TO CONT SVC.