What was found
FMC NAV STATUS IRS L ONLY. NO FAULT LT. FO NO MAG COMP OR HDG B UG.FO TCAS FAIL. ON R ADIRU FOUND FAULT 34-21009 "ENTER HEADING" FAULT ON LAST GOOD. PERFORMED LAND VERIFY TEST PER AMM 22-11-00-700-801. ALL LEG. PER FIM 34-21 TASK 808 FAULT CLEARED AFTER HEADING IS TEST PASSED FULL CAT CAPABILITY RETAINED. PARTS USED: ENTERED. NO MAINT REQUIRED PER FIM. NO OTHER FAULTS FOUND. 60-3421-9-0001,QTY :1 REMOVED AND REPLACED R ADIRU PER AMM 34-21-01. ALL OPS CHECKS ROTABLE PARTS CHANGE WAS INDICATED - TT # 1760096 SN OFF 3003 UNIT, ADIRU, AI OFF 60-3421-9-0001 3003 ON 60-3421-9-0001 1449