The relevance of the 2500 call is vital for SA. Why am I getting the 2500 call now when I'm still 20 miles out (I'm not saying it has happened to me.....yet).
what we do say when cleared below Relevant MSA is terrain. And PM goes or was already on terrain mode
Have a read of
https://assets.publishing.service.go...975_G-AWNJ.pdf
This was before the days of "Terrain on ND" and even before GPWS was fitted.
Nairobi airfield is at an Altitude of 5,330 feet and the crew believed they were cleared to Altitude 5,000 ft. The crew acknowledged the radio Alt call of 2,500 feet (top of page 4) and during the approach they had full fly up on the ILS GP.
They must have been really fatigued!