If an employee has children under the age of 6, they are entitled to apply to their employer for flexible working hours. This is a result of an EU directive of some 12 months ago.
The employer has to have good reason to refuse, and may have to present this reason at any tribunal.
The change is to the contract, and is permanent.
In the case of most, flexible working means including the part time option.
This all applies to pilots.engineers....everyone. Just gotta have kids.!!
The majority of part time pilots, as far as I can see, have used this statutory right to secure part time contracts, rather than the business response schemes.
Hope this helps.