Inspection and Maintenance — GEK 107048Combustion Inspection — Inspection Procedures
CI-I-16
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 Centerbody (Cont’d)
5. Thermal barrier coating Isolated Patches
1/2 x 1/2 inch.
*Replace
Liner Spring Seal
1. Axial cracks None *Replace
2. Circ. cracks None *Replace
3. Distortion (flattening) Pi-tape
OD
11.23/11.19 inch dia. *Replace
4. Wear
Pi-tape OD
50% mat’l removal at slots
11.24/11.18 inch dia.
*Replace
*Replace
5. Missing leaves None *Replace
6. Spot weld cracks Four pre liner,
no more than two adjacent.
*Replace
7. Bent leaves Any number Straighten and penetrant
check
8. Loss of elasticity Seal leaves must be in contact to
liner, no clearance
*Replace
Crossfire Tube Collars
1. Cracks None *Replace
2. Wear 0.030 inch mat’l remaining *Replace
3. Distortion 1.98 inch minimum I.D. Reform with hand tools
4. Burning at crossfire tube collar 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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