Ah well, I guess they don't make jet engines as robust as they used to.
Having flown TriStars in the mid-east for a long time, sand just didn't seem to bother the RR RB.211 engines.
OTOH, they were washed out with a fire hose a time ot two...especially when the fleet manager ran off the end of the runway in Taif, and used reverse to return to the pavement...
