We once had a 3rd party customer 747 arrive with about 4 of the 18 caps remaining, suffice to say we didn't have enough for the rest of the wheels so DD'd them. I seem to remember there was something in the classic MM about the caps being a secondary seal so was quite happy to DD them. Unfortunately don't have those manuals anymore so can't look.
Anyway I could of course be wrong, it has been known
, perhaps I have learnt something new again today.
