As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMER LT TEST FND L/H DR NO.3 EXIT SIGN AND AFT EXIT IDENTIFIER N OT ON REFER NON-ROUTINE NO.9407040 - ORIGINATED SPEC NO.B777-33-3-7030. PERFORMED REPLACED THE POWER PACK AND PERFORMED INSTALLAIONAL TEST, THE RESULT NORMAL REF AMM 33-51-06-960-802 R EV.88 & AMM 33-51-06-960-803 REV.88, P/N OFF:ADD717-01-100, S/N OFF:67357, P/N ON:ADD717-01-100, S/N ON:241640.