What was found
SPARKS FLEW OUT OF PANEL WHEN OPERATING TAXI LIGHT. R & R NOSE TAXI/LANDING LIGHT SWITCH S1-236 IAW MM 33-00-00-2. PERFORMED OPS CHECK OF NOSE TAXI/LANDING LIGHTS IAW MM 33-42-00-4. COMPLIED WITH PART 2 OF EA 8-3340-140173. NOSE TAXI/LANDING LIGHTS OPS CHECK SATISFACTORY. MEL CLEARED, PLACARD REMOVED. ACFT OK FOR SERVICE. COMPLY WITH EA 8-3340-140173 REV NO POS P2. REF WRI 33-40/6469 FOR REPLACEMENT OF SWITCH S1-236. COMPLIED WITH PART 2 OF EA 8-3340-140173. OPS CHECK SATISFACTORY IAW MM 33-42-00-4. ACFT OK FOR SERVICE.