As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YIP - NR 1 COMM INOP (INTERMITTENTLY) AND NR 2 COMM INOP (INTERMITTENTLY). AIRCRAFT DIVERTED INTO YIP. NO EMERGENCY PROCEDURES NECESSARY. MAINTENANCE WAS NOT ABLE TO DUPLICATE THE PROBLEM ON EITHER COMM. BOTH COMM'S WERE REPLACED AND BOTH SYSTEMS CHECKED GOOD IAW GMM CHAP 8, SEC 7. (M)