R740XD latch

Latch on my R740XD sticking out about quarter of an inch even when the lid is closed all the way. Same problem when the cover is completely removed from the server, so something is wrong with the latch itself. As a result it's always on the way when pulling the server (or the server above) out of the rack or pushing it back. Any idea how to fix it? Can just the latch be replaced or I have to replace the whole cover? If someone could help me find part numbers, that would be great.