As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND EMERGENCY BATTERY (M5169) FUNCTION FAIL(<P>1. IAW AMM 33-51-04-902-001-001 REV107 REPLACED EMEREGENCY LIGHT POWER SUPPLY (M5169) BATTERY 2. IAW AMM 33-51-04-902-001-001 REV 107 PERFORMED POWER SUPPLY BATTERY INSTALLATION TEST AND THE RESULT WAS SATISFACTORY.</P>)