If you could be bothered to check on UK NARIC's site you would see the following
UK NARIC is the UK’s National Recognition Information Centre and provides services for individuals and organisations to compare international qualifications against UK qualification framework levels. It is a Government service, managed by ECCTIS Ltd.
The organisation offers products and services in 3 main areas:
Services for individuals: UK NARIC provides comparison statements for people with international qualifications planning to work or study in the UK. The statements can be used by individuals to help them through the UK's immigration system, applying for a UK job or to enrol on an education course
If BA had said they would accept other UK qualifications they would have said.
As you yourself has said on this Thread before,
It amazes me how people do not know such information? All the information is on BA's website dude.
Of course the best option is to check with the Recruitment Department of the Airline, after all they have the final say.
As one of my old ground instructors used to say, Read The F******* Question
