What was found
DURING CRUISE, CABIN CREW SMELLED ODOR OF BURNING RUBBER AROUND ROW 22. THE ENTERTAINMENT SYS WAS SUSPECT AND TURNED OFF, ODOR DISSIPATED (NO VISIBLE SMOKE). ACFT LANDED WITHOUT FURTHER INCIDENT. MX FOUND "SEAT ELECTRONIC BOX" (SEB) PN RDAX4431-10, AT ROW 23 A, B, C AT FAULT. SUSPECT SHORT CIRCUIT OF CABLE PN RDAM7934-18, WHICH CAUSED SEB TO SHORT CIRCUIT. DISCONNECTED AND REMOVED CABLE PN RDAM7934-18 WHICH DEACTIVATED ROWS 23-19(REF NEF 00000576), PARTS ON ORDER. TEAR DOWN REPORT OF SEB. SEB UNIT FAILED - POWER INTERRUPTION. REPLACED INOP (C34) ELECTROLYTIC CAPACITOR,AL, P/N R3EA0HFS473Z. CLEANED, TESTED & FUNCTIONAL TESTED OK PER CMM 23-34-72, REV 13, DEC 20, 2008. SEB RETURNED TO SERVICE.