Combustion Inspection — Inspection ProceduresInspection and Maintenance — GEK 107048
CI-I-15
Table CI-2 — Continued
Inspection Limits, MS-6001B DLN-1 Liners
See Figures CI-I.6, CI-I.7 and CI-I.8
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 Venturi (Cont’d)
4. Local distortion 1/8 inch from original contour
with no cracks
*Replace
5. Thermal barrier coating Isolated Patches
1/2 x 1/2 inch
*Replace
Multi-Nozzle Cap
1. Fuel nozzle collar wear 0.030 inch wear or less *Replace
2. Fuel nozzle collars free to slide Movable with light tapping *Replace
3. Support frame weld cracks None allowed *Replace
4. Impingement cooling plate
cracks
None allowed *Replace
5. Loss of thermal barrier coating 1/4 x 1/4 inch isolated patches *Replace
6. Warpage of plates around cups Up to 0.06 inch *Replace
7. Burning or loss of material None allowed *Replace
8. Cap to liner looseness Up to 0.030 inch movement *Replace
Liner Centerbody (part of cap assembly)
1. Axial cracks None *Replace
2. Circ. cracks None *Replace
3. Burn through or missing metal None *Replace
4. Visual braze flow
(overtemperature)
None *Replace
*“Replace” does not mean liner must be scrapped; this part can be repaired by qualified General
Electric Company personnel.
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