As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AS PER CUSTOMER REQUEST, INBOUND EMER LIGHT CHECK. PERFORMED EMER LIGHT CHECK, FOUND EXTERIOR EMER LIGHT L391 INOPERATIVE, LIGHT BASE ASSEMBLY CORRODED. CLEANED & REINSTALLED BASE ASSEMBLY. PERFORMED OPERATIONS TEST, TESTED NORMAL IAW AMM 33-51-06.