Ok, you are both caught up in the WX diversions from last night and this both flights are listed as OPEN or Operational Reasons - no to EU/UK261.

For BA4451 - your allocated aircraft(G-LCYO) was in BHX last night having diverted. It started its day today late to position to LCY due crew rest. As this is a knock on from yesterday the all reasonable measures argument still applies, but it is a legitimate initial use of the code.

For BA7027 - Your aircraft was G-LCYR and it started its day at the correct base, but was pinched to operate the PMI service. This is far easier to challenge as it was a purely commercial reason to pinch the BER aircraft for PMI, crew and aircraft were at base.

For both cases there is a note to the effect of a lack of crew. A lack of crew and the fact BACF keep loosing pilots hand over fist is very much a BACF owned problem, especially for departures ex main base. For both the ‘all reasonable measures’ aspect still applies. Initial claims will be rejected. For the BA4451 it would be a harder situation to gauge a positive outcome as your aircraft was indeed out of position along with its crew. For BA7027, a far easier case to take forward to CEDR, you had both a serviceable aircraft and a lack of pilots and crew on standby at home base is a resourcing problem, pure and simple.