| | COMBUSTION CHAMBER ASSEMBLY BULKHEAD AND |
| | FUEL INJECTOR GUIDE HEATSHEILD |
| | CONTINUE-IN-SERVICE LIMITS |
| CONDITION ............................................................... ..
| FOUND | PERMITTED WITH REGULAR | PERMITTED WITH DECREASED |
| FIGURE 617 | TIME INSPECTION | TIME INSPECTION |
................................................................................. | Fuel Injector | All quantities of cracks or endcap segments that are missing | | Endcap | are permitted. If pieces of the endcap segments are missing, | | Segments | examine the 1st-stage and 2nd-stage HPT blades for FOD. | ................................................................................. | Radial Cracks | All quantities are permitted. See Figure 620. | | in the Fuel | | | Injector End | | | Cap/Tip | | | Heatshield | | ................................................................................. | Circumferen-| All quantities are permitted. See Figure 620. | | tial Cracks | | | along the | | | OD of the Fuel| | | Injector End | | | Cap/Tip | | | Heatshield | | ................................................................................. | End Cap | All quantities are permitted. See Figure 620. | | Material | | | Liberation | NOTE: Liberation is segments which are broken away.____| | of the Fuel | | | Injector End | | | Cap/Tip | | | Heatshield | | ................................................................................. | Burned Marks, | None are permitted. | | Erosion, | | | Distortion, | IMMEDIATELY REMOVE THE ENGINE | | or Holes in | | | the Bulkhead | | .................................................................................
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~...............................................................................
| | TABLE 607 |
.................................................................................
| | COMBUSTION CHAMBER ASSEMBLY BULKHEAD AND |
| | FUEL INJECTOR GUIDE HEATSHEILD |
| | CONTINUE-IN-SERVICE LIMITS |
| CONDITION ............................................................... ..
| FOUND | PERMITTED WITH REGULAR | PERMITTED WITH DECREASED |
| FIGURE 617 | TIME INSPECTION | TIME INSPECTION |
................................................................................. | Radial or | None are permitted. | All quantities that are less | | Circumferen-| | than 0.50 inch (12.700 mm) in | | tial | | length are permitted. Cracks | | Bulkhead | | which go below a fuel injector| | Cracks | | heatshield are not permitted. | | | | Cracks which can connect and | | | | become a semicircle are not | | | | permitted. | 2...............…...............................…...............................1
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
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