As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L1 DOOR EMERGENCY SLIDE FAILS DURING EMERGENCY LIGHT TEST. MESSAGE L1 DOOR EXTERNAL LOADS. TROUBLESHOT USING SIMULATOR AND WITH SIMULATOR LOAD INSTALLED, TEST PASSES WITH SLIDE CONNECTED TEST FAILS. REPLACED SLIDE IAW MM. TESTS NORMAL AND OPS CHECKED NORMAL.