You must be referring to those "Remove Before Flight" tags. The flags are attached to things like intake covers, and on pins which insert into the landing gear to prevent collapse. Hence, the "remove before flight" warning flags attached to these items.
The QM2 (and the red flag), however, has unique parallels to the SOL, the WOT, and the general alarms that have been sounded in these recent weeks. Just one more sign to add to the mix. I won't go into the other concerns regarding the Columbia anniversary, but Columbia is an old name for the US of A.