As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: EVACUATION ALARM WENT OFF FOR ABOUT 2 MINUTES ON TAKEOFF. MOMENTARY CIDS DATA LOSS DURING TAKEOFF. ACCOMPLISHED TEST OF EVACUATION SIGNALING SYSTEM PER AMM 23-73-00, NO FAULTS NOTED. THIS AIRCRAFT EXPERIENCED THE REPORTED ISSUE TWICE ON CONSECTUTIVE FLIGHTS. THIS REPORT IS FOR THE 1ST EVENT AND AALA202104189013 AND AALA202104209014 ARE ASSOCIATED WITH THE SECOND EVENT WHICH RESULTED IN AN AIR INTERUPT.