Counterbound TC of train T220(682/681) reported that B-side headlight of train T413 was faulty. TC o f T413 checked at YCK1 and confirmed B-side headlight was fa ulty. ~~~~~ 3708 Counterbound TC of train T220 reported that B/S headlight faulty. TC of T413(707/708) checked at YCK1 and confirmed B-side headlight was faulty. CE: 3708 B side headlight not working.  3708 faulty B/S headlight replaced & testesd - OK. Irwan/Syahid/Hairi 44782