What was found
AIRCRAFT WAS NOT GROUNDED. BATTERY PACK 10WL, FAILS EMERGENCY LIGHT TEST. REPLACED BATTERY PACK (10WL) PER MM 33-51-38. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS NOT GROUNDED. BATTERY PACK 10WL, FAILS EMERGENCY LIGHT TEST. REPLACED BATTERY PACK (10WL) PER MM 33-51-38. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.