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 CAUTION: WHEN YOU PUT ON THE ENGINE COVERS IN THE STEPS THAT
_______ FOLLOW, DO NOT INSTALL THE ENGINE INLET COVER FIRST. THE SUCTION OF THE WINDMILLING ENGINE CAN PULL THE ENGINE INLET COVER INTO THE ENGINE. THIS CAN CAUSE DAMAGE TO THE 1ST-STAGE FAN BLADES AND STATOR VANES.
 (c)  Install the turbine exhaust cover and the fan reverser plug covers into the rear openings of each engine.
 NOTE: When the rear engine covers stop the air flow through
____ the engine, the fan blades will slowly stop.
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 72-00-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
No. 2 - Inlet, Exhaust, and Externals Inspection
________________________________________________
 (d)  When the fan stops windmilling, install the engine inlet cover on the engine inlet. 1) When you do the inspection of the front area of the engine,
 temporarily remove only the engine inlet cover (keep the rear engine covers installed to stop the air flow through the engine).
 2)  When you do the inspection of the rear area of the engine, temporarily remove only the rear engine covers (keep the engine inlet cover installed to stop the air flow through the engine).
 S 016-047-N00
 (2)  Open the fan cowl panel (AMM 71-11-04/201).
 S 046-048-N00
 WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______ OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (3)  
Do this procedure: Thrust Reverser Deactivation for Ground Maintenance (AMM 78-31-00/201).

 S 016-049-N00

 (4)  
Open the core cowl panels (AMM 71-11-06/201).

 S 016-341-N00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (5)  
Open the thrust reversers (AMM 78-31-00/201).

 S 866-184-N00

 (6)  
Make sure that the fuel control switches are in the CUTOFF position, and attach the DO-NOT-OPERATE tags.

 S 496-052-N00
 CAUTION: MAKE SURE THAT YOU PUT COVERS ON ALL OF THE LOWER HALF OF THE
_______ INLET COWL SURFACE. ALSO MAKE SURE THAT THE EDGES OF EACH MAT TOUCH THE ADJACENT MAT, OR ARE ATTACHED WITH TAPE. IF YOU DO NOT DO THIS, THE TOOLS OR PARTS CAN FALL AND CAUSE DAMAGE TO THE INLET COWL SURFACE.
 (7)  Put the protective mat on the lower, inner half of the inlet cowl.
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 ALL  ú ú N01 Page 608 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
No. 2 - Inlet, Exhaust, and Externals Inspection
________________________________________________
 F. Do the Inlet, Exhaust, and Externals Inspection.
 S 216-053-N00
 (1)  
Do these steps to examine the inlet and fan air path.

 (a)  
Examine the inlet cowl for damage.

 (b)  
Examine the PT2/TT2 probe for damage.

 (c)  
Examine the fan blades for these types of damage: foreign object damage (FOD), part span shrouds that are missing, part span shrouds with cracks, cracks in other areas, tears, sharp nicks or dents, and bends in the tip or leading edge (AMM 72-31-02/601).

 (d)  
Examine the inlet cone for cracks, delaminations, dents, and cut areas (AMM 72-31-01/601).

 (e)  
Examine the fan rubstrip for areas that are missing, not bonded, or are worn (AMM 72-33-01/601).

 (f)  
Examine the 1st-stage stator vanes for FOD (AMM 72-31-04/601).

 (g)  
With a fluorescent light or other applicable tools, examine the 1.6-stage blades for FOD (AMM 72-31-05/601).

 (h)  
With a fluorescent light or other applicable tools, examine the 1.6-stage stator rubstrip for damage (AMM 72-31-08/601).

 (i)  
Examine the fan exit case and vane assembly for cracks, delamination, or missing vanes (AMM 72-33-02/601).
　
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