As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHT ABOVE THE R2 DOOR AND AT THE R2 DO NOT ILLUMINATE. ACFT GROUNDED. REMOVED AND REPLACED THE BATTERY PACK AND CHARGER M1672 IAW AMM 33-51-06-960-805, AND 33-51-06-960-806. OPS CHECKED GOOD IAW AMM 33-51-06-960-805, STEP 405 AND 33-51-06-960-806, STEP 5E4.