747-200 / JT9 Epr transmitter has to be the worst job I've done in a while.
Boeing's design philosophy seems to be: Install part with as many lose nuts/brackets/inaccesible fasteners as possible, install access panel approx 1/8" bigger than component to be removed then move it at least a foot away from said component. Just to give the engineers a real challenge then put the fire bottle just close enough to the access hole to prevent the removal of the txmtr without MR Rubik's guide to aircraft maint!