Some years ago inbound to ATL (Delta B727) we broke off the approach at about 4 miles with an immediate left turn and (unusually for ATL I thought) a 360 (at roughly 1500/1800ft) back on approach for landing. Despite the manoeuvre and - I would have thought - a fairly busy FD, the Captain came on the PA briefly explaining what and why. I'd guessed what had happened but I'm sure that his PA helped to put many at ease that there wasn't anything more untoward going on. I shall always remember that low level orbit in a B727. Quite different to doing it in a Cessna 152.
