A340 with 180 people on board ... using the phrase "fully loaded".
You obviously haven't seen the typical MK passengers luggage. Expect to see 5 Plasma TV's, 3 lawn mowers, 1 motor bike, 2 bbq's, 1 kitchen sink, aisle 13 from Bunnings, and aisle 7 from Coles. And that's just the carry-on.