As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PREFLIGHT - DOOR SLIDED ARMED WARNING RED LIGHT WOULD NOT ILLUMINATE WHEN PRESS TO TEST BUTTON ACTIVATED. ITEM PLACED ON M750206 PER MEL 52-73-01-1 NO MX PROCEDURES REQUIRED. PLACARD INSTALLED.REPLACED APSU 7OWN PER A300 AMM 57-73-18-0401. OPS CK OK,