GE MS6001B, Maintenance Instructions Manual, Page: 204 / 370

Inspection and Maintenance — GEK 107048 Combustion Inspection — Inspection Procedures
CI-I-18
Table CI-3
Inspection Limits, Crossfire Tubes and Retainers
CAUTION
The inspection criteria in this Table CI-3 applies to
General Electric Company supplied crossfire tubes and
retainers only.
Inspect
Maximum Acceptable
Limits
Disposition (For Parts
Beyond Max. Limits)
Inner Crossfire Tubes
1. Burn through; missing metal None Replace
2. Distortion None Replace
3. Cracks None Replace
4. Flange wear 0.14 inch minimum thickness Replace
5. Tube wear 0.11 inch minimum thickness Replace
Crossfire Tube Spring Retainers
1. Wear 20% of original material Replace
2. Evidence of distortion None Replace
c. Aft frame internal corner cracks.
d. Aft frame external corner cracks.
e. Forward brackets for weld cracks right and left sides.
f. Transition piece body for cracks.
2. Use the transition piece inspection criteria Table CI-4 to completely inspect the transition pieces
after fluorescent penetrant test.
3. Record findings on Inspection Form PGS/GT-FF-6407.
4. Repair welding procedures.