If you're delayed for maintenance, be careful how you word things.

For example, if a ramper noticed a dent on the underside of the engine, say something along the lines of "some of our ground crew saw what looked to be a fresh scratch on a non-essential cosmetic fairing, we're just going to have our mechanics come out and take a look at it, just to be extra safe."

Instead of "we're waiting on maintenance to come out and look at some damage on the right engine before we go."

One sounds like someone dinged their car door. The other makes people thing they're going do die.