What was found
FOUND U/D EMERGENCY LIGHT POWER SUPPLY (M5933) FUNCTION FAIL.(<P>1. REPLACED EMERGENCY LIGHT POWER SUPPLY (M5933) IAW AMM 33-51-04-002-009-001 & AMM 33-51-04-402-012-001 REV 113. 2. REPLACED EMERGENCY POWER SUPPLY BATTERY (M5933) IAW AMM 33-51-04-902-001-001 REV 113. 3. PERFORMED EMERGENCY LIGHT POWER SUPPLY & BATTERY INSTALLATION TEST IAW AMM 33-51-04-405-012-001 & AMM 33-51-04-902-001-001 REV 113. THE TEST RESULT WAS SATISFACTORY. OFF: BATTERY PN 2013-1A SN 69364 & BATTERY CHARGER PN 2012-1 SN 49789.</P>)