What was found
WHILE ON DESCENT INTO SBA, FLIGHT CREW HEARD AN AUDIBLE POP AND SHORTLY AFTERWARDS RECEIVED A MASTER CAUTION ALONG WITH A HYD PUMP B FAIL CAS MESSAGE. AFTER CONFERRING WITH MX CONTROL THE DECISION WAS MADE TO DIVERT TO VNY WHICH HAD THE LONGER RUNWAY. CREW LANDED WITHOUT INCIDENT IN VNY. MAINTENANCE FOUND THE B HYDRAULIC SYSTEM ENGINE DRIVEN PUMP (P/N: 66166) HAD FAILED. THE B HYDRAULIC SYSTEM EDP WAS REPLACED WITH AN OVERHAULED UNIT, ALONG WITH A COMPLETE SYSTEM FLUSH AND FILTER REPLACEMENT. SYSTEM BLEED, LEAK AND OPERATIONAL CHECKS WERE NORMAL. THE AIRCRAFT WAS RETURNED TO SERVICE.