As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPPER DECK DOOR BATTERY LIGHT NOT WORKING. LEFT U/D DOOR BATTERY TEST LIGHT INTERMITTENT. REPLACED BATTERY NO HELP SWITCH INTERMITTENT WILL LIGHT UP WHEN SWITCH IS LIFTED UP SLIGHTLY AFTER THE REQUIRED TIME CLEAN, NO HELP. SWITCH IS HARD WIRED IN. THE SWITCH MAY BE PART OF A MODULE WITH RELAY AND WIRED. REPLACED DOOR ANNUNCIATOR MODULE M7035, CKS OK ON GROUND.