G-FDZD did a Madeira run on Friday and flew back at FL240, spent a couple of days on the ground, and then managed to go to Paphos at FL350 but again returned at FL240. Only TUMO has done a round trip at approx FL240/250.
following this tread and noticed that TUMO did NCL/LPA/NCL at this level again. If it a new part is required how would this be done - would the aircraft swap down route and return to bigger base for maintenance work or could it be done at NCL?