As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PERFORM EMERGENCY LIGHT SYSTEM TEST FOUND R4 DOOR EXTERNAL EMERG ENCY LIGHT INOP REFER HAECO NON-ROUTINE LP.9442165 - ORIGINATED BY EMP V905449 SPEC NO.B777-33-3-7015. PERFORMED BY EMP V903277 REPLACED THE R4 DR EXTERNAL EMER LIGHT LAMP AND PERFORM LIGHT TEST FOUND NORMAL REF AMM 33-51-04-960-80 1 REV.91. IDT BY V905449.