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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
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(3) Open the core cowl panel (AMM 71-11-06/201).
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WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
(4)
Open the thrust reverser (AMM 78-31-00/201).
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(5)
Compare the damage that you find on the outer liner segments with the limits in Tables 601, 602 and 603 (Fig. 601).
~............................................................................... | INSPECTION FOR PARTS THAT ARE MISSING OR ARE LOOSE | | Table 601 | ................................................................................. | AREA: CONDITION OBSERVED | NECESSARY PROCEDURE | .................................................................................
| Outer Liner Segment: | Replace or tighten the liner as applicable |
| all or part of the liner | before the 51st hour of operation |
| that is missing or loose | (AMM 72-34-01/401). |
................................................................................. | Screws: One or more screws| Replace or tighten the screws as applicable | | that is missing or loose | before the 51st hour of operation. | 2............................…..................................................1
(a) If the damage to the outer liner segment, referred to in Table 602, is less than the limits, no procedure is necessary.
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FAN EXIT LINER SEGMENT (OUTER)(9 LOCATIONS)
SEE A
SEE B
SEE C
FAN EXIT LINER
SEGMENT (OUTER) A
(9 LOCATIONS)
FAN EXIT LINER SEGMENT (OUTER) (9 LOCATIONS)
B C
Fan Exit Liner Segments - Inspection Figure 601
C17109
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
~.............................................................................. | INSPECTION FOR NICKS, DENTS, AND OTHER SURFACE DAMAGE | | Table 602 | ................................................................................ | | REPLACE THE LINER BEFORE | REPLACE THE LINER BEFORE | | CONDITION OBSERVED | THE 51ST HOUR OF OPERATION | NEXT ENGINE OPERATION | ................................................................................ |Nicks and gouges |More than 1.000 inch | | | |(25.400 mm) in width or | | | |length, or more than 0.030 | | | |inch (0.762 mm) in depth, or| | | |less than 2.000 inches | | | |(50.800 mm) apart from other| | | |damage, or there are more | | | |than five (5) nicks and | | | |gouges. | | ................................................................................ |Dents with rounded |More than 0.030 inch (0.762 | | |bottoms |mm) in depth or on more than| | | |10% of the surface area. | | ................................................................................ |Dents with rounded |More than 0.030 inch (0.762 | | |bottoms |mm) in depth or on more than| | | |10% of the surface area. | | ................................................................................ |Cracks |More than 1.000 inch (25.400| | | |mm) in length or less than | | | |0.500 inch (12.700 mm) from | | | |the center of an attachment | | | |screw. | | ................................................................................ |Areas of broken or |Between 1.000 and 2.5000 |If more than 2.5000 inches | |(fuzzy stray) |inches (25 and 64 mm) in |(64 mm) in width or length | |fraying fibers |width or length, or more |repair or replace. | | |than 0.030 inch (0.762 mm) | | | |in depth, or less than 2.000| | | |inches (50.800 mm) from | | | |other damage. | | ................................................................................
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