What was found
ELMS P210 CHANNEL ONE, BUT NOT BOTH, OF THE ELECTRICAL LOAD MANAGEMENT SYSTEM (ELMS) P210 PANEL CHANNELS: INOP DUE TO FAILURE OF THE P210 PANEL POWER SUPPLY, CENTRAL PROCESSING UNIT, OR ARINC 629 CARD OR FAULTED SUCH THAT THE CHANNEL CANNOT SUPPORT ITS COMPLETE SET OF FUNCTIONALITIES. INSTALLED NEW CARD, UNABLE TO INSTALL SW. REINSTALLED ORIGINAL CPU CARD M2 4403A2 AND RETURNED ACFT TO PREVIOUSLY DEFERRED STATE. PARTS: (566-9106 MR24085) MODULE. REPLACED CPU CARD M24403A2. REF MM 24-09-00 SOFTWARE LOAD AND OPS OK.