As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND THE EMERGENCY LIGHT BATTERY FUNCTION FAIL (M5933, M7924).(<P>IAW AMM 33-51-04-002-009-001 & 33-51-04-402-012-001 REV 112 REPLACED EMERGENCY LIGHT POWER SUPPLY (M5933, M7924) AND PFM TEST OF POWER SUPPLY, RESULT WAS SATISFACTORY.</P>)