As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LT BATTERY PACK DEEP CYCLE CHECK FOUND BATTERY PACK M3 3096 DISCHARGE LESS THAN 15 MINUTES. REPLACED M33906 EMERGENCY LT BATTERY P ACK, PERFORMED INSTALLATION TEST FOUND NORMAL, REF AMM 33-51-06- 960-802 & AMM 33-51-06-200-801 REV 96.