What was found
EMERGENCY LIGHTS OPERATIONAL CHECK - RIGHT CENTER OVERWING EXIT EXTERIOR EMERGENCY LIGHTS DID NOT ILLUMINATE DURING CHECK.REQUESTING MEL REF 3314A FOR EXTERIOR R CTR O/W EMERGENCY EXIT LIGHT RELAMPED REF AMM 33-51-04-960-801. NO FIX. CHECKED FUSES ON POWER SUPPLY M1669, FOUND ALL FUSES GOOD. MEASURED RESISTANCE BETWEEN M1669 PWR SUPPLY CONNECTOR D10714 PIN 11, RT OVERWING EXTERIOR ESCAPE LIGHT AND PIN 7 WHICH IS ACFT GND ON CONNECTOR D10714, RESISTANCE SHOWS OPEN. THEN MEASURED RESISTANCE BETWEEN PIN 7 AND PINS 14,15,16 TO VERIFY, 14,15,16 TO 7 ALL SHOW LESS THAN 2 OHMS. THESE ARE OTHER LIGHT ASSY. SUSPECT FAULT BETWEEN D10714 PIN 11 AND RIGHT OVER WING ESCAPE LIGHT L7. UPON ATTEMPTING TO REMOVE THE RIGHT OVER-WING EMERGENCY LIGHT ASSEMBLY, IT WAS DISCOVERED THAT THE ASSEMBLY IS ATTACHED WITH HI-LOKS . REPLACED THE ASSEMBLY.