Engine overhaul expenditures will grow modestly in the short term, but prepare for a spike.

If present trends continue, no airline pilot will fly without a tablet computer; nor will any aircraft mechanic attempt a repair without one. For the pilot, the devices represent the latest evolution in electronic flight bags (EFBs), which first made inroads, nearly two decades ago via the laptop computer. For mechanics, the far less bulky tablets will provide a new measure of mobility, as digital maintenance manuals can be downloaded and taken where the work is being done.

For U.S. Boeing 747-400 operators, going outside the country for heavy airframe maintenance may be the only choice, as North American MRO capacity for the huge aircraft becomes increasingly limited. It's easy to see why, given what has become a relatively small number of aircraft.