As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT AFT PAX DOOR EICAS MESSAGE FLICKERED DURING TAKEOFF ROLL. OK AIRBORNE. CABIN PRESSURE NORMAL. REMOVED DOOR BUSTLE & SENSOR COVER. REMOVED EXCESS GREASE & DEBRIS FROM THE SENSOR AND TARGET. CHECKED SENSOR ADJUSTMENT & PERFORMED OPS CHECKED IAW AMM 52-71-00. ALL CHECKED GOOD. OK FOR SERVICE.