As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN'S OXYGEN MASK MICROPHONE IS INOPERATIVE. FOUND MICROPHONE WIRE IS INTERMITTENT IN O2 BOX. WHEN WIGGLED, COMMS IS INTERMITTENT. REPLACED CAPTAIN'S OXYGEN MASK STOWAGE BOX REF AMM35-12-41-00-0-001 A. CHECKS OK REF AMM 35-12-41-710-001A.