As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - CREW REPORTED DIFFERENCE BETWEEN CAPTAINS AND FIRST OFFICERS ALTIMETERS. FLIGHT RETURNED LAX LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED FLEX STATIC LINE TO THE CAPTAINS PITOT PROBE. SYSTEM GROUND CHECK NORMAL OPERATION.