GE MS6001B, Maintenance Instructions Manual

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Inspection and Maintenance — GEK 107048 Combustion Inspection — Inspection Procedures
CI-I-14
Table CI-2
Inspection Limits, MS-6001B DLN-1 Liners
See Figures CI-I.6, CI-I.7, CI-I.8 and CI-I.9
CAUTION
The inspection criteria in this Table CI-2 applies to
General Electric Company supplied DLN-1 combustion
liners only.
Inspect
Maximum Acceptable
Limits
Disposition (For Parts
Beyond Max. Limits)
Liner Sleeve (Outer Shell)
1. Cracks None *Replace
2. Burn through or missing metal None *Replace
3. Out-of-roundness 1/4 inch from original contour *Replace
4. Local distortion 1/8 inch from original contour
with no cracks
*Replace
5. Liner wear beneath
spring seals
40% material thickness
beneath seal
*Replace
Liner Cooling Rings
1. Ring slot height 0.065 inch min. gap *Replace
2. Axial cracks None *Replace
3. Circ. cracks None *Replace
4. Burn through (missing metal) None *Replace
5. Visual braze flow
(overtemperature)
None *Replace
6. Thermal barrier coating Isolated Patches
1/2 x 1/2 inch.
*Replace
Liner Venturi
1. Cracks None *Replace
2. Burn through or missing metal None *Replace
3. Out-of-roundness 1/4 inch from original contour *Replace
*“Replace” does not mean liner must be scrapped; this part can be repaired by qualified General
Electric Company personnel.