As a frequent passenger, I was startled to learn that important landing services were not available at one of the world's busiest international airports. Moreover, that these had been U/S for several weeks, and pilots had been landing heavy aircraft by doing sums in their head?
Whatever pilots may think of this, as a person who pays to be flown I consider it absolutely unacceptable. I'm paying for technology that maximises my safety, not two tired pilots trying to divide by 300.
Are there any other major airports where there's no g/s or PAPIs?