Hendy (pictured), who was instructed by OH Parsons & Partners partner Steve Cottingham and is leading Oliver Segal of Old Square, is representing the Unite union.
He is arguing that the union was not consulted properly on the changes, which included freezing pay levels and cutting the number of cabin crew used on long-haul flights.
BA is being represented by Bruce Carr QC of Devereux Chambers, who was instructed by Baker & McKenzie partner John Evason and is leading Andrew Burns of Devereux.
The hearing had originally been scheduled for the end of last year (4 November 2009).
Hendy and Carr faced off in court last December as BA sought an injunction to stop its staff striking over the Christmas period (16 December 2009).
In that case Carr argued that there were irregularities in Unite’s strike ballot that meant staff who had already been made redundant were allowed to vote on the action. Mrs Justice Cox upheld the argument and granted the injunction (17 December 2009).
In that instance Hendy was instructed by Thompsons Solicitors partner Neil Johnson for Unite while Carr was instructed by Evason at Bakers.
A new strike ballot began last week and is due to close on 22 February.