Tristarsteve From Sweden, joined Nov 2005, 3858 posts, RR: 34 Reply 9, posted (1 year 11 months 3 days 16 hours ago) and read 1495 times:
Quoting N747pa (Reply 1): IIRC, to convert from -100 to -200 only requires an engine change from -22B to -524.
Well there was a little more. The -524 engine had higher temp and press air offtakes. So before the engines were replaced we had to change a lot of components in the air system. I remember that we did all this work first, a month before the engines were replaced. The engines were changed in LHR, by GF staff in the BA hangar. This was to save on engine transport costs after the engines were delivered from RR. With our ace engine change team, the tripple engine change only took 24 hrs.
The -100 Tristars had problems on BAH-LHR. It was really too far, so the conversion was a relief. (I thought it was 1978/9).
When GF bought these four -100s the plan was to operate a scissor operation through Beirut, from LHR, CDG and AMS to BAH DOH AUH and DXB. But just before delivery civil war broke out in Beirut, and the aircraft had to operate non-stop instead, but only to BAH and DOH. The UAE was too far.