What was found
E WITH A SINGLE SPARK OCCURRED WHILE LEVELING AT FL330 NO BURN MARKS OR OTHER SAMC TEXT: OR OTHER ANOMALIES NOTED. NO POPPED CB. PER FLT CREW.. NO RECURRANCE OF THE SPARK. MAY HAVE BEEN STATIC OF SOME SORT. ALL IS WELL. OPENED OVHD CIRCUIT BREAKER PANELS TO CHECK FOR EVIDENCE OF SUSPECTED PROBLEM. ALL AREAS SHOWED NO SIGNS OF ARCING OR OTHER ELECTRICAL ANOMALIES. ALL GLARESHIELD AND CKPT PANEL LIGHTING WORKING NORMALLY.