What was found
CREW REPORTS IN CRUISE FLT, GOT HYD 2 LOW PRESS CAUTION MESSAGE. RAN QRH WHICH STATED TO CONTINUE UNLESS PRESSURE WAS LOST & HYD SYS 2 PRESSURE WAS LOST, WITH HYD PUMP 2B CAUTION & LOSS OF HYD SYS 2 FLUID QTY, NOW AT 5%. CREW DIVERTED TO MKE, EMERGENCY WAS DECLARED BY ATC & A/C DID NOT LAND OVERWEIGHT (FLIGHT 4297 - FILED CLOSED) THIS DISCREPANCY WAS TRANSFERRED TO CAMP ITEM 22949867 WITH THE FOLLOWING CORRECTIVE ACTION: "SERVICED HYDRAULIC SYSTEM 2 AND PRESSURIZED, FOUND LEAK AT 2B ACMP BALL ATTENUATOR. REMOVED AND REPLACED 2B ACMP PUMP AND ALL PACKINGS IN REFERENCE WITH AMM 29-11-03. OPERATIONAL CHECK GOOD. REFERENCE CP 22951204-1 FOR LEAK CHECK. / "