What was found
DURING TEST OF THE EMERGENCY LIGHTS SYSTEM, FROM "ARM" TO "ON" THERE WAS AN INTENSE FOREIGN ODOR, SUSPECT SULFUR ODOR. STARTED IN COCKPIT AND WAS DETECTED THROUGHOUT CABIN. DURING TEST OF THE EMERGENCY LIGHTS SYSTEM, FROM "ARM" TO "ON" THERE WAS AN INTENSE FOREIGN ODOR, SUSPECT SULFER ODOR. STARTED IN COCKPIT AND WAS DETECTED THROUGHOUT CABIN. REMOVED CABIN EMERGENCY LIGHT BATTERY PACKS. INSTALLED A NEW BATTERY OPS CHECK GOOD. IAW MM REF FAS 08-1696