As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YOW FACT COURIER AREA CENTER EMERGENCY LIGHT AND R1 DOOR EXTERIOR SLIDE LIGHT AND R1 EXIT LIGHT INOP. AMM: 33-51-07-2 TROUBLESHOT SYSTEM AND FOUND POWER SUPPLY BATTERY NOT SEATED CORRECTLY IN CRADLE. INSPECTED BATTEY WITH NO DEFECTS FOUND. RE-INSTALLED EMERGENCY POWER SUPPLY BATTERY IAW ABOVE REF. OPS CHK SERVICEABLE.