C.
References
(1)
AMM 72-31-02/401, 1st-Stage (Fan) Blade
(2)
IPC 72-31-03 Fig. 1
D.
Access
(1)
Location Zone
412 Engine No. 1
422 Engine No. 2
432 Engine No. 3
442 Engine No. 4
E.
Procedure
S 424-014-N00
(1)
Do these steps to install the fan exit fairing (Fig. 401):
(a)
Put the fan exit fairing (splitter) on the outer diameter of the 1st-stage stator.
(b)
Engage the fan exit fairing with the front flange of the stator. 1) Align the bolt holes in the fairing with the holes in the
fan exit case and the inner front flange of the vane assembly.
(c)
Lubricate the threads of the screws with engine oil.
(d)
Install the 37 screws.
1) Tighten the screws to 36-40 pound-inches (4.1-4.5 newton-meters).
S 094-011-N00
(2)
Remove the protective mats from the inner diameter of the fan case.
(3)
Install the 1st-stage fan blades (AMM 72-31-02/401).
S 414-012-N00
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FAN EXIT FAIRING - INSPECTION/CHECK
___________________________________
1. General
_______
A. This procedure gives instructions for the inspection of the fan exit fairing.
B. The fan exit fairing (or splitter) is aft of the 1st-stage fan blades and is mounted on the forward half of the low pressure compressor (LPC) stator assembly.
C. You can go into the inlet cowl and look between the fan blades to examine the fan exit fairing.
TASK 72-31-03-206-001-N00
2. Examine the Fan Exit Fairing (Fig. 601)
____________________________
A. Standard Tools and Equipment
(1)
Mat - Protective, Rubber Manufacturer's Association, Grade SC43, neoprene sponge, 1 inch thick, 5 x 6 feet with warning streamers attached (three required)
B.
References
(1)
AMM 72-31-03/401, Fan Exit Fairing
(2)
IPC 72-31-03 Fig. 1
C.
Access
(1)
Location Zone
412 Engine 1 - LPC
422 Engine 2 - LPC
432 Engine 3 - LPC
442 Engine 4 - LPC
D.
Procedure
S 866-002-N00
(1)
Make sure that the fuel control switches are in the CUTOFF position.
S 866-009-N00
(2)
Install DO-NOT-OPERATE tags on the switches.
S 866-010-N00
(3)
Put the protective mats on the lower half of the inner surface of the inlet cowl.
S 226-004-N00
(4)
Examine Area A, the leading edge of the fan exit fairing, for damage.
(a)
Nicks, gouges, and cracks that are more than 0.05 inch (1.27 mm) in depth are not permitted.
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
FAN EXIT FAIRING
A-A
Fan Exit Fairing Inspection
Figure 601
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(b)
Nicks, gouges, and cracks that are in the limits that follow are permitted. 1) No more than 0.05 inch (1.27 mm) in depth 2) Less than 0.50 inch (12.70 mm) in width 3) A minimum of 2.00 inches (50.80 mm) away from other nicks,
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