What was found
AIRCRAFT WAS GNDED. EMER LIGHT TEST FAILED DURING SLIDE INSTALLATION OF R4. FOUND DAMAGED WIRE UNDER SEAT TRACK AT ROW 22BC. REPAIRED WIRES, CHANGED 2 POWER SUPPLIES, POSITION 11 & 12, & PERFORMED A SATISFACTORY OPERATIONAL CHECK IAW AMM 33-51-00. SEE AALA201603099001 & AALA201603099002 FOR ADDITIONAL PART INFORMATION.