What was found
ARCDU'S VHF COM 1 TRANSMITTING (TX) INTERMITTENTLY AND AUDIO CLICKING HEARD REGARDLESS OF TRANSMIT ROTARY SELECTOR POSITIONS. RETURNED TO FIELD. LANDING UNEVENTFUL. REMOVED FROM SERVICE. VISUALLY INSPECTED BOTH CAPTS AND FOS HAND MIC'S, FOUND FOS MIC TO HAVE SOME DETERIORATION AT BOTH END OF CORD. R&R FO'S HAND MIC IAW AMM TASKS 23-51-21-000/400-801. OPS CKS GOOD. DID NOT HEAR STATIC ANY LONGER AND COMUNICATED WITH OPS AND NO INTERFERANCE OR STATIC NOTED ON EATHER END. AC OK FOR SERVICE.