As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 596 MCO-HPN - FLT CREW DECLARED EMERGENCY INTERCOM FAILURE, EMER CALL TO CABIN WOULD OCCUR SPORADICALLY DURING FLIGHT CAUSING HOT MIKE/LOST COMMUNICATIONS ON BOTH RADIOS. RESEATING OXYGEN MASKS AND RE/DE SELECTING SPEAKERS AND OTHER TROUBLESHOOTING DID NOT HELP. REMOVED AND REPLACED VHF COM MODULE IAW 23-12-01 AND PACIC IAW 44-11-01. ALL RADIOS AND INTERPHONE COMM OPS NORMAL.