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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
B FAN EXIT OUTER FAIRING
LEADING EDGE
C FAN EXIT INNER FAIRING SPLICE PLATE RIVET NUTPLATE
WASHER
1 2 D (2 LOCATIONS) ACCESS COVER 1 2
1 2 WITHOUT PW SB 72-161 WITH PW SB 72-161 Figure 601 (Sheet 2) Fan Exit (Bifurcation) Fairing L-A8543 (0000)
D04774
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~............................................................................... | TABLE 601 | | INSPECTION FOR MISSING PARTS OR LOOSE PARTS | ................................................................................. | | DAMAGE LIMITS | ................................................................................. | | | | | EXAMINE THE | REPLACE IN NOT | TIGHTEN IN NOT | | FAN EXIT FAIRINGS | MORE THAN 50 HOURS | MORE THAN 50 HOURS | ................................................................................. | Bifurcation Fairings | | | | If a part of, or all of | | | | the fairing is missing | Replace the fairing. | | .................................................................................
| Screws | | |
| If missing | Replace the screw. | |
| | | |
| If loose | | Tighten the screw. |
................................................................................. | Rivets | | | | If missing or loose | Replace the rivet. | | ................................................................................. | Washers | | | | If missing | Replace the washer. | | 2...........................….......................…...........................1
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
~............................................................................... | TABLE 602 | | INSPECTION FOR NICKS, DENTS, AND OTHER SURFACE DAMAGE | ................................................................................. | | DAMAGE LIMITS | .................................................................................
| | | REPLACE IN | REPLACE |
| EXAMINE ALL | | NOT MORE | BEFORE |
| SURFACES FOR: | PERMITTED | THAN 50 HOURS | NEXT USE |
................................................................................. | Nicks and Gouges | | | | | Width or Length | |More than 1.00 in. | | | | | (25.400 mm)| | | Depth | |More than 0.030 in.| | | | | (0.762 mm)| | ................................................................................. | Separation | |Less than 2.000 in.| | | (from other | | (50.800 mm | | | damage) | | | | | | | | | | Number | | More than 5 | | ................................................................................. | Dents (with | | | | | rounded bottoms) | | | | | Depth | |More than 0.030 in.| | | | | (0.762 mm) | | | Quantity | | More than 10 | | | | | percent of the | | | | | surface area | | ................................................................................. | Cracks in the | | | | | composite | | | | | material | | | | | Length | |More than 1.000 in.| | | | | (25.400 mm)| | ................................................................................. | Separation | |Less than 0.500 in.| | | (from the center | | (12.700 mm)| | | of an attachment | | | | | rivet or screw) | | | | ................................................................................. | Cracks in the | | None are permitted| | | titanium leading | | | | | edge | | | | ................................................................................. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 发动机 ENGINE 2(70)
