Fairbank, 23, who has joined the Londoners on loan, played in four of the first nine matches for the Giants, recently had a month's loan at Bradford and played on Thursday night on a dual-registration for Championship club Batley.
"He's a player we'd spoken about before he went to Bradford," said Broncos coach Tony Rea. "With a couple of other injuries around the middle, we look forward to his work rate."
Rea has lost the services of Chris Bailey, Michael Witt and new captain Tony Clubb from the team that suffered an 82-10 mauling by Warrington in their last match while centre James Mendeika's loan spell has been brought to an end and he has returned to Warrington.
Rea has promoted Joel Wicks and Harry Little from the club's Under-19s and has named Mason Canton-Brown in his 19-man squad after impressing during his dual-registration spell with Hemel Stags.
"James Woodburn-Hall would also have been in the 19 but he picked up an ankle injury," said Rea.
"There's real strength in our Under-19s and they are playing really well. Joel and Harry are picked on performance. There have been a couple of injuries but we've been looking at them to come in and do stuff anyway.
"They've earned the right. They have a great passion for the club and are strong players with a great ability to play the game. We could have nine London-developed players in the 17 so it's a really good day for the club."
The Broncos have no fewer than 11 senior players sidelined, including Bailey, who is facing the likelihood of surgery after suffering a bicep tear playing for the Exiles against England last Friday, and centre David Howell, who has a bone infection in his arm following a break earlier in the year.
London this week completed the signing of Australian half-back Jamie Soward as a short-term replacement for former skipper Craig Gower but he is awaiting the arrival of a visa before he can link up with his new club.
- Sports & Recreation
- Tony Clubb
- Michael Witt