Hmmmmmm........ sorry shorts, but that won't really cut the mustard. The original reason for the upgrade, started by KLM I think, was because the MTBF of the ADIs was getting shorter and shorter.
More and more international airports, of which Dubai is the most strict, insist on the new RNP requirement, which insists on AUTOMATIC external updating of the IRS by GPS and/or navaids. The fit envisaged for the classics is just an fms laid on top of the LTN92. EHGPWS is mandatory soon too, so thats no biggie........wait until TAECO try to marry the (analog) FRATS with the (digital) FMS............
Furthermore, with over half the fleet consisting of some very old ladies indeed, the servicing costs will allow the bean counters like DT to finally lay the queen of the skies to rest, unfortunately a lot sooner than we are all hoping for. Whistling in the dark won't make this monster go away.....
