I remember a trip to Addis Ababa, Ethiopia with Prime Minister Wilson on board who was meeting with Haile Selassie. The airport is over 7.000ft elevation.
I recall having to 'climb' the cabin altitude to land.
The protocol was the UK PM did not want to stand on Ethiopian soil so Haile Selassie came on board for lunch.
We had a problem starting the APU as, I think....it was out of its height limits. We had to tweak it's FCU to get it working.....lucky we had a Crew Chief on the trip as the PM was an angry man and didn't want any ground equipment to touch our VC10.
We got the APU started and I wound the Aircon and the recirc fans to max to keep the A/C cool.
Maybe some GE can comment if I have my details correct....it was a long time ago.
Last edited by Davita; 12th Aug 2013 at 15:56.