Yes you can, says the cabin crewmember who was "removed" from the UK back in 1998 due to attendance issues (and other stuff), and then got back to the UK in 2004 or 2005 as a cabin crew with no issues.
I wasn't "refused entry", I was asked to leave the country by the immigration (the school reported me), I changed the ticket date and left from the airport by myself.
Being in the aviation business for years, I can also tell you that the UK has one of the most complicated crew entry processes, even though they require no visa and you will not pass actual immigration desk (an officer will board the bus that picks up the crew after arrival, and do a quick check, randomly).
Usually, they do not refuse crew, but issue a notice to the airline to not bring the cabin crewmember they do not like again to the UK.
One thing to remember, which I am sure your airline knows about, only operating crew with actual duties on-board are allowed entry without a visa, if you are deadheading or being re-positioned for whatever reason, then you must have a valid visa.