As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TEST FOUND DOOR L4(M33407) EMERGENCY LT CAN NOT STAY ON FOR 15 MINUTES REFER HAECO NON-ROUTINE NO.9494655 - ORIGINATED BY EMP V905359 SPEC NO.B777-33-3-7019 REPLACED EMERGENCY LT BATT PACK AT DOOR L4 (M33407) AND TESTED FOUND NORMAL PER AMM 33-51-06-960-802 REV 96,PERFORMED BY EMP V9 05359,IDT BY V905466.(ON PN ADD717-01-100,SN 29111;OFF PN ADD717 -01-100,SN 156268)