Counter bound TC T413 reported T410 oneheadlight not working. T410 TC stepped out to check "a" sideheadlight not working. Tripped MLCB to no avail ~~~~~ 3636 reported headlight not working. TC stepped out to check A/S headlight not working. Tripped MLCB to no avail"  3636 Faulty A/S HL replaced. Tested operation - OK. Aminur/Fudail 45249