As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHT TEST FAILS WITH "EXT LOADS FWD L" MESSAGE. INSTALLED TEST LIGHT FIXTURES ON BOTH FWD SLIDES TO GET TEST TO PASS. FWD EMERGENCY LIGHT POWER SUPPLY AND BATTERY REPLACED (PN 3214, SN 390), NO HELP. REPLACED SLIDES. OPS CHECKED NORMAL.