As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON PREFLIGHT FOUND L1 DOOR RED WARNING LIGHT NOT ILUMINATING WHEN TESTED. RESET AUTONOMOUS POWER SUPPLY AND PERFORMED TEST OF EMERGENCY ESCAPE SLIDE RELEASE WARNGING SYSTEM IAW AMM 52-73-00. TEST PASS. THIS CLEARS AUTH 2851768. DMP REVERSED PLACARD REMOVED.