A tool kit for decoupling a telescoping tube from a first liner of a gas turbine engine is disclosed. The tool kit includes a base plate coupled to a combustor casing. A post extends outward from the base plate into a combustion chamber defined by the liner. A plunger slidably mounts to the post and is slidable between an extended position and a retracted position. A lever arm pivotably couples to the post and the plunger. Pivoting the lever arm in a first direction slides the plunger to the extended position to decouple the telescoping tube from the liner. A retaining clip couples to the combustor casing and extends into an annular plenum at least partially defined between the liner and the combustor casing. The retaining clip defines a notch that receives the telescoping tube after the plunger assembly decouples the telescoping tube from the liner.