EMU 677/678 #1667 Earth return cable fou ~~~~~ To check 1677 earth brush condition.  1677 checked M-car earth brush length as per checklist (6MCD04-Refer to attachment for reading). Earth brushes & holder condition checked - OK.  Ridzuan 44358 1677 Earth return cable found frayed on Axle 1, Axle 2,Axle 3 and Axle 4  1677 Axle 1,2,3 & 4 earth cables replaced. Security check - OK. OPS 20 raised to check on earth brushes condition.  Alan/Shafie    44357