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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
No. 15 - HPC Vane and Blade (5th- through 15th-Stage) Inspection
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 (h)  Examine the 14th-stage stator for missing braze.
 1)  Missing braze is permitted at the vane to shroud OD fillet radius for the two 14th-stage vanes adjacent to the AP-7 borescope port.
 S 416-330-N00
 CAUTION: MAKE SURE YOU OBEY THE PROCEDURES IN THE STANDARD PRACTICES
_______ MANUAL (AMM 70-21-00/201) WHEN YOU INSTALL BORESCOPE PLUG WASHERS. INCORRECT INSTALLATION OF THE KEY WASHERS CAN CAUSE THE BORESCOPE PLUG TO COME OUT. IF AN AP-5 OR AP-7 BORESCOPE PLUG IS NOT THERE, HOT GASES FROM THE PLUG HOLE CAN CAUSE DAMAGE TO THE THRUST REVERSER.
 (7)  Install the access port plugs for the high pressure compressor (HPC) as follows (Refer to Table 605):
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
~............................................................................... | Table 605 | ................................................................................. | ACCESS | ENGINE | PLUG | LOCKING | PLUG |TORQUE VALUE | | PORT | LOCATION | PACKING | METHOD | LUBRICANT |pound-inches | | | | | | | (N.m) | .................................................................................
 |  AP-2  |HPC 5th-Stage |  No  |Self-locking Insert|Antigalling|  175-190  |
 |  |  Vane  |  | For Earlier Plug  | Compound  | (19.8-21.5)  |
 |  |  |  |  |  |  |
 |  |  |  |  Key Washer  |  |  |
 |  |  |  |  (PN 53H027)  |  |  |
 |  |  |  |  for later plug  |  |  |

 ................................................................................. | AP-3 |HPC 6th-Stage | No |Self-locking Insert|Antigalling| 175-190 | | | Vane | | for Earlier Plug | Compound | (19.8-21.5) | | | | | | | | | | | | Key Washer | | | | | | | (PN 53H028) | | | | | | | for Later Plug | | | ................................................................................. | AP-4 |HPC 8th-Stage | No |Self-locking Insert|Antigalling| 175-190 | | | Vane | | | Compound | (19.8-21.5) | ................................................................................. | AP-5 |HPC 10th-Stage| No |*[3] Key Washer |Antigalling| 175-190 | |(Outer) | Vane | | (MS 9582-19) | Compound | (19.8-21.5) | ................................................................................. | AP-5 |HPC 10th-Stage| No |*[4] Key Washer |Antigalling| 175-190 | |(Outer) | Vane | | (58H216) | Compound | (19.8-21.5) | ................................................................................. | AP-5 |HPC 10th-Stage| No |Plug Assembly with |Antigalling| 175-190 | |(Inner) | Vane | | Integral Lock | Compound | (19.8-21.5) | | | | | Washer | *[1] | | ................................................................................. | AP-5 |HPC 10th-Stage| No |Plug Assembly with | *[2] | 175-190 | |(Inner) | Vane | | Integral Lock | | (19.8-21.5) | | | | | Washer | | | ................................................................................. | AP-6 |HPC 12th-Stage| No |Self-locking Insert|Antigalling| 175-190 | | | Vane | | | Compound | (19.8-21.5) | ................................................................................. | AP-7 |HPC 14th-Stage| No |*[3] Key Washer |Antigalling| 175-190 | |(Outer) | Vane | | (MS 9582-19) | Compound | (19.8-21.5) | ................................................................................. | AP-7 |HPC 14th-Stage| No |*[4] Key Washer |Antigalling| 175-190 | |(Outer) | Vane | | (58H216) | Compound | (19.8-21.5) | .................................................................................
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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