As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 61 JFK-FLL AIR RETURN TO JFK, DUE TO "B" HYD SYS LOW PRESSURE. ACCOMPLISHED OPERATION & INSPECTION OF BLUE HYD PUMP & SYS OPS TEST OF PHASE UNBALANCE DETECTOR AND CURRENT TRANSFORMER OF B HYD SYS SUSPECT "P" SWITCH ELECT PUMP AT FAULT. REMOVED AND REPLACED "P" SWITCH PER AMM 29-12-00. OPS CHECK & LEAK CHECK, NO FAULTS NOTED. ALL ACCOMPLISHED PER AMM 29-12-00.