The Daily Telegraph also had an article about this case.
Apparently BA will only grant Ms Starmer 75% because they deem it inappropriate for pilots with less that 2,000hr to be given 50% contracts. The article went on to indicate that BA has many flying mums who work a 50% contract because they have the required number of hours. That seems fair to me & I can't see that BA is being sexually discriminatory.
Presumably, BA pilots' part-time working deal was negotiated with BALPA and the experience requirements became part of the Ts & Cs.
Anyway, how long has she got to wait until she gets 2,000hr so that this is no longer an issue?