As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AC 7000' ON CLIMB OUT FROM BWI; MULTIPLE AURL WARNINGS BEGAN TO SOUND WITH NO ASSOCIATED VISUAL INDICATIONS UNABLE TO SILENCE ANY OF THE WARNINGS / REMOVED AND REPLACED AURAL WARNING MODULE PER AMM 31-51-04 OPS CHECK GOOD GRB 253579 ON MPN 69-78214-4 OFF SN F09190 ON MPN 169-78214-4 ON SN D03266