What was found
AIRCRAFT PERFORMED AN UNSCHEDULED LANDING AT HMO DUE TO DURING CRUISE THE RT ADIRU WAS INOPERATIVE. AT HMO, MX PERFORMED THE LT ADIRU OPERATIONAL TEST IAW AMM 34-21-01, TESTED CORRECT. THE RT ADIRU REPORT WAS DEFERRED IAW MEL 34-35 CAT B. AT GDL, MX REPLACED THE RT ADIRU IAW AMM 34-21-01, TESTED CORRECT & THE REPORT WAS CLOSED.