What was found
EMERGENCY LIGHT OVER SEAT 10 IS COMPLETELY OUT IN THE EMERGENCY POSITION OR WITH THE MAIN BATTERYS ON. IT WAS ON INITIALLY BUT FLICKERED AND WENT OUT COMPLETELY. AFTER A COMPLETE POWER DOWN AND ANOTHER TEST ATTEMPTED THE LIGHT WAS STILL OUT. GAINED ACCES TO AIRCRAFT AND POWERED ON. PERFORMED EMERGENCY LIGHTING OPS CHECK IAW AMM 33-50-00 PAR 2.D. FOUND READING LIGHT OVER RIGHT VANITY SEAT TO FLICKER WHEN AGITATED. GAINED ACCESS TO CONNECTOR AND FOUND IT REQUIRED DEANING AND ADJUSTMENT. CLEANED AND RECONNECTED PLUG, PERFORMED OPS CHECK SEVERAL MORE TIMES TO INDUDE COMPLETELY POWERING DOWN AIRCRAFT. NO DEFECTS NOTED AT THIS TIME. ALL MAINTENANCE DONE IAW AMM CHAPTER 33-50-00.