As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT EMER LIGHTS FLICKERING IN THE ON AND ARM POSITION. REMOVED EMER BATT #1 AND #2 AND INSTALLED A CUS SUPP REPAIRED #1 AND #2 UNIT PERFORMED A SATISFACTORY OPS TEST OF THE EMERGENCY LIGHTS WITH NO DEFECTS NOTED ALL WORK PERFORMED IAW EMB-505 AMM 33-52-01-000-801-A/400-801-A.