The Transport Salaried Staffs’ Association have announced that their members will not join the walk out on the 5 and 7 February.
The RMT declared the plans for action on Friday after talks fell through with Acas. The ongoing row is about staff numbers.
The TSSA have said that the London Underground’s proposals, which include the creation of 325 new jobs, “pave the way for a resolution”. The union are seeking further talks with the LU to clarify questions on safety.
Members of the RMT will walk out for 16 hours from 6pm on 5 February, and then hold a 15-hour strike from 10am on 7 February.