As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNIT EMER L AND COMM EMER L ATA 33-51-38 DISPLAYED AFTER TEST. *S/D* UNIT EMER L AND COM EMER L WERE SHOWN IN TEST DURING NR 3 SERVICE. LT OVERWING EPSU INDICATED 3 RED LIGHTS. NEW EPSU AND BATTERY DID NOT HELP. OVERWING EXTERIOR LIGHTS WERE RELAMPED AND CHECKED OK.