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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
FAN EXIT LINER SEGMENTS (INNER FRONT) -INSPECTION/CHECK
________________________________________________________
 1.  General
_______
 A.  This procedure gives the task do the inspection of the fan exit liner segments (inner front). These fan exit liner segments will be referred to as the liner segments in this procedure.
 B.  The seven liner segments are on the inner front circumference of the intermediate case, aft of the fan case.
 C.  You must open each half of the thrust reverser to get access to the liner segments.
 TASK 72-34-06-206-002-N00
 2.  Inner Front Liner Segments Inspection
_____________________________________
 A.  References
 (1)  
AMM 71-11-04/201, Fan Cowl Panel

 (2)  
AMM 71-11-06/201, Core Cowl Panel

 (3)  
AMM 72-34-06/401, Fan Exit Liner Segments (Inner Front)

 (4)  
AMM 78-31-00/201, Thrust Reverser Opening

 B.  
Access

 (1)  
Location Zone
 412 Engine 1 - Intermediate Case
 422 Engine 2 - Intermediate Case
 432 Engine 3 - Intermediate Case
 442 Engine 4 - Intermediate Case

 (2)  
Access Panel
 415 Left Thrust Reverser Half - Engine 1
 416 Right Thrust Reverser Half - Engine 1
 425 Left Thrust Reverser Half - Engine 2
 426 Right Thrust Reverser Half - Engine 2
 435 Left Thrust Reverser Half - Engine 3
 436 Right Thrust Reverser Half - Engine 3
 445 Left Thrust Reverser Half - Engine 4
 446 Right Thrust Reverser Half - Engine 4

 C.  
Do the Inspection of the Inner Front Liner Sements.

 S 046-001-N00
 WARNING: DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF THE
_______ THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
 (1)  Do the deactivation procedure for the thrust reverser for ground maintenance (AMM 78-31-00/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 016-003-N00
 (2)  
Open the fan cowl panel (AMM 71-11-04/201).

 S 016-010-N00

 (3)  
Open the core cowl panel (AMM 71-11-06/201).

 S 016-004-N00
 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).

 S 216-005-N00

 (5)  
Compare the damage that you find on the outer liner segments with the limits in Table 601, 602, and 603 (Fig. 601).

 ~............................................................................... | INSPECTION FOR PARTS THAT ARE MISSING OR ARE LOOSE | | Table 601 | ................................................................................. | AREA: CONDITION OBSERVED | NECESSARY PROCEDURE (72-34-06/401) | .................................................................................
 | Liner Segment:  |  Replace the liner segment within 50 hours of  |
 | all or part of the liner  |  operation.  |
 | that is missing  |  |

 ................................................................................. | Screws/Rivets: One or more | Replace the screw/rivet or tighten the screw | | that is loose or missing | as applicable within 50 hours of operation. | ................................................................................. | Washers: Missing | Replace the washer within 50 hours of operation.| 2............................…..................................................1
　
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