What was found
EFIS COMPARATOR MESSAGE ON EICAS. REPLACED PITOT SYSTEM DRAINS WHICH HAD BEEN CRACKED BY FREEZING WATER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EFIS COMPARATOR MESSAGE ON EICAS. REPLACED PITOT SYSTEM DRAINS WHICH HAD BEEN CRACKED BY FREEZING WATER.