What was found
THE AIRCRAFT DEPARTED FROM KPBI. DURING DECENT TO TIST, THE CREW REPORTED MULTIPLE CAS MESSAGES IN-FLIGHT, UPON DESCENT, LANDING GEAR WOULDN’T EXTEND DUE TO POPPED ECB, MX FAIL CAS, AND EMERGENCY LANDING GEAR EXTENSION WAS UTILIZED TO SAFELY LAND AIRCRAFT. THE MAINTENANCE CREW REPLACED THE EPDU1 AND PERFORMED ALL OPERATIONAL CHECKS GOOD. THE LANDING GEAR EXTENSION/RETRACTION CHECK WAS GOOD.