As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE FROM MSY, THE HYDRAULIC ''B'' SYSTEM FAILED. COMPLIED WITH COM PROCEDURE AND DECLARED AN EMERGENCY. MAINTENANCE CONTROL AND CAPTAIN MADE A DECISION TO CONTINUE TO MEM BASED ON POOR WEATHER AT MSY. FLIGHT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED LEAKING NR 1 ''B'' SYSTEM HYDRAULIC PUMP. LEAK AND OPERATIONAL CHECK OK.