...with a Tomahawk cruise missle! (When you care enough to send the *very* best)
Another distinction of the typical Part 121 domestic/flag rules here in the USA is that had a similar gear problem occurred, and the crew advised they were going to continue to a destination beyond their fuel range withthe gear extended, the dispatchers here have the ability to independently delcare an emergency on/for the flight.
I don't know if Hapag Lloyd has dispatchers, or if they have Part 121 domestic/flag-style regs, but one has to wonder what went on in the cockpit after takeoff when the gear wouldn't retract. If this aircraft had a 2-hour CVR, there could be some interesting stuff on it...
ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.