As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD ACCESS DOOR EICAS AND OVERHEAD CAUTION ILLUMINATED ON TAXI IN. UPON INITIAL TROUBLESHOOTING, FOUND NO ICAS MSG OR OVERHEAD LIGHTS ILLUMINATED. IAW AMM 52-71-00-735-053 PERFORMED SYSTEM TEST ON THE DOOR WARNING SYSTEM AND NO FAULT NOTED. ALSO HAD SOMEONE TAP ON THE DOOR TO DUPLICATE VIBRATION AND NO FAULT NOTED AT THIS TIME. AS PRECAUTION, REMOVED UNWANTED MATERIAL FROM THE FORWARD ACCESS DOOR LATCH PINS AND LATCH FITTINGS.