As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: DOOR RIGHT EMERGENCY EXIT EICAS CAUTION DISPLAY SHORTLY AFTER TAKEOFF. CABIN PRESSURE NORMAL. FLIGHT ATTENDANT REPORTED NO ABNORMAL INDICATIONS AT RIGHT EMERGENCY EXIT (OVER WING). PROCEEDED TO DESTINATION PER QRH. MAINTENANCE FOUND DOOR HANDLE COVER NOT PROPERLY INSTALLED CAUSING AMBER ALERT. INSTALLED COVER PROPERLY AND DOOR INDICATION CHECKS GOOD PER AMM 52-21-11.