As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOTH CAPTAIN AND FIRST OFFICER WERE UNABLE TO BE HEARD BY TOWER ON NR 1 RADIO. WE COULD BOTH HEAR TOWER ON RADIO NR 1. COMMUNICATION ON NR 2 WAS NORMAL. REMOVED FROM SERVICE. R&R NR 1 TRANSCEIVER IAW AM 23-11-01-00/400-801. OPS CHECK GOOD IAW AMM 23-11-00-710-801. AIRCRAFT RETURNED TO SERVICE.