What was found
EXIT LIGHT FLICKERING ROW 21 A LED LIGHT MODULE STROBING, REQUEST MEL. E12 BREAKER ON P92 PANEL PULLED AND COLLARED. REF WDM 33-21-11-1. APPROVED DDP FOLLOWED. STICKER APPLIED *DM* SEE M/L FOR AFT OVERWING LIGHT ASSY M2838. SEE AMM TASK 33-21-00-960-802 REQ EXTRA TIME FOR REMOVAL OF EMERGENCY EXIT HATCH AND SAFETY FALL ARREST. CLOSED CB AND CHECKED LIGHT FOR OPERATION. LOADED SOFTWARE PER AMM 23-42-03-470-801. ALIGHTS WERE ON FOR OVER THREE (3) HOURS WITH NO FLICKERING OR OTHER DISCREPANCIES.