CONFIDENTIAL TIBU3862-01

Reports have been received of expansion and/or splitting of the stick as a result of water entering the stick and freezing during extreme cold weather conditions. The affected stick assemblies and stick groups are listed in the following table:

Perform the rework procedure that follows.

The rework consists of drilling holes in the bottom plate of the stick assembly to enable water to drain from inside the body of the stick. See Figure 1 and Figure 2.

1. Drill a 10 mm (0.4 inch) diameter hole in the chamfered portion of the bottom plate of the stick assembly. See Figure 3 for the drilling location.
2. Drill a 10 mm (0.4 inch) diameter hole in the bottom plate of the stick assembly. See Figure 4 for the drilling location. Note: Drill through both the outer plate and the inner plate as shown in Figure 2. The distance between the two plates is approximately 10 mm (0.4 inch).

Figure 1. Side view of the stick assembly.

Figure 2. Drilling locations for drain holes

Figure 3. Layout for drilling the drain hole in the chamfered section of the bottom plate.

Figure 4. Layout for drilling the drain hole in the bottom plate. The location is 66 mm (2.5 inch) from the end of the stick assembly, as shown.

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