What was found
EMERGENCY LIGHTS INOP FROM ROW 50 BACK INOP. INITIALLY WHEN TESTING PATH LIGHTS, NOTICED LIGHTS FROM 50FD WERE ON BUT DIM & PATH LIGHTS AFT GOT DIMMER. LIGHT AFT OF 52FD WERE COMPLETLY INOP. SUSPECT THE BATTERY PACK & POWER SUPPLY. USED GOOD PARTS TO TEST IAW AMM 33-51-07-002-014-001 & 33-51-07-022-005-001. NO FIX. ORIG PARTS BACK ON, CARRIED OUT WIRING INSPS FROM SEAT 50DEF AFT. NO ISSUES NOTICED. FROM SEAT 51DEF & 52DEF, DISCONNECTED THE SEAT - SEAT CABLE. FWD LIGHTS BACK TO NORMAL BRIGHTNESS, BUT WHEN RECONNECT, DIMMNESS OF ALL PATH LIGHTS BTWN 50DEF AFT DIMMER. FOUND CENTER AISLE LIGHTS DIM FROM ROW 47 TO 54. T/S IAW WDM 33-51-18. DISCONNECTED HARNESS AT ROW 47 WITH DAMAGED PIN. SWAPPED WITH ROW 54 HARNESS. INSTALLED NEW HARNESS AT ROW 52, & HARNESS AT ROW 54 IAW WDM 33-51-18-901. & AMM 20-60-03. OPS CHKD GOOD.