The Rail, Maritime and Transport (RMT) Union is set to ballot members working out of the Stratford and Greenwich depots of the Jubilee Line.
The union has written to London Underground, listing the following grievances:
- The "unfair and disproportionate" treatment of Drivers in disciplinaries
- Facilities on the Jubilee Line "being in a very poor and in some cases a disgusting state"
- The "removal and threatened removal of some benefits"
- A "severe lack of support" from managers for their staff.
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Members of the RMT union who work on the Central Line will walk out at 9pm on Wednesday.
Southeastern was hit after a freight train derailed causing travel chaos for hundreds of thousands of passengers.
The club says the decision to sack Ken Hare was "a disappointment". He had been at Roots Hall for 27 years.