As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED AN ACRID ODOR IN THE C/P. CREW DID NOT SEE SMOKE, BUT LOST BOTH CRT'S ON EACH SIDE. REMOVED AND ISOLATED WIRES FROM F/O'S MARKER BEACON ASSY. STOWED AND WRAPPED. SECURED ASSY'S. IAW GMM 3-6-1. ENTERED INTO DEFERRAL LOG PER MEL 34-32-1. REF TO M322144.