DTDT reported 3552 Door monitor indicationfor M2 2551 both A/S & B/S did
not light up when doors are at open condition.
2551 doors operated normally when checked. ~~~~~ DT reported 3552 Door monitor indication     Checked DMI indication diodes for #3551 and #3552,results ok.Further checked and found #3551 COR-2 Aux contact block 61NC to 62 O/L.Aux contact block replaced and carried door function test from both cabs result ok. Done by Joshua.  06/05/21