What was found
PREVIOUS TO DISPATCH OF FLIGHT TA-367, THE PILOT IN COMMAND REPORTED, EICAS MSG, NAV COM 1 WAS FAILED. IT WAS PERFORMED A FAULT ANALYSIS IAW FIM 34-02-01-810-804-A & REPLACED THE NIM 1 IAW AMM 34-02-000-801-A34-02-400-801-A. PERFORMED OPERATIONAL TEST WITH NORMAL RESULTS. AFTER PERFORMING THE APPLICABLE CORRECTIVE ACTION, THE ACFT WAS RETURNED TO SERVICE.