(c)
7C12, FLT CONT ELEC 1L AC
(d)
7C13, FLT CONT ELEC 1L DC
(e)
7C14, FLT CONT ELEC 1R AC
(f)
7C15, FLT CONT ELEC 1R DC
(g)
6C16, FLT CONT ELEC 2R AC
(h)
7C17, FLT CONT ELEC 2R DC
S 862-055
(2) Make sure the ALT FLAPS ARM switch is off.
TASK 27-51-00-002-001
10. Flap Track Fairing Removal (Fig. 201)
__________________________
A. General
(1) When you cannot extend the trailing edge flaps because of failure of a transmission or other flap drive component, you must remove the flap track fairings to get access to the failed component. This is a general procedure to remove the inboard or outboard fairings. It can be necessary to change the procedure for the specific component failure.
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A
747-400
MAINTENANCE MANUAL
SEE A
SEE C
SEE B
SEE D
SEE E
A
TIEBOLT
TIEBOLT
LOCK
HINGE
FITTING RETAINER
JUMPER BONDING TIEBOLT
ROD (3 LOCATIONS) ADJUSTABLE FIXED FAIRING FIXED FAIRING EXTENSION FIXED FAIRING 1
B
C
1 FAIRINGS NO. 3 AND 6 HAVE A TIEBOLT ON EACH SIDE OF THE FAIRING
Figure 201 (Sheet 1) Flap Track Fairing Removal
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A
747-400
MAINTENANCE MANUAL
HINGE FITTING BOLT (2 LOCATIONS) FORWARD HINGE
BONDING JUMPER
MOVABLE FAIRING ACCESS PLATE
D
FWD
ADJUSTABLE ROD ACCESS PLATE
FLAP TRACK FAIRING (2 LOCATIONS) AFT HINGE BOLT
(OTHER FAIRINGS EQUIVALENT) LINKAGE SHOWN IN RETRACTED POSITION FAIRING NO. 2 AND 7 E
Figure 201 (Sheet 2) Flap Track Fairing Removal
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747-400
MAINTENANCE MANUAL
(2)
You cannot use the usual equipment to remove the fairing with the flaps retracted. Use a maintenance stand or other equipment to hold the fairing. The inboard fairing weighs approximately 110 pounds and the outboard fairing approximately 80 pounds.
(3)
After you repair the flap system, you can install the flap track fairings with the usual installation procedures. Refer to 27-51-26/401 for the inboard flaps or 27-51-31/401 for the outboard flaps.
B.
References
(1)
AMM 29-11-00/201, Main Hydraulic Supply System
C.
Access
(1)
Location Zone
567 Outboard Flap Track Fairing, Outboard Flap, LH,
(Track No. 1)
565 Inboard Flap Track Fairing, Outboard Flap, LH,
(Track No. 2)
563 Outboard Flap Track Fairing, Inboard Flap, LH,
(Track No. 3)
561 Inboard Flap Track Fairing, Inboard Flap, LH,
(Track No. 4)
661 Inboard Flap Track Fairing, Inboard Flap, RH,
(Track No. 5)
663 Outboard Flap Track Fairing, Inboard Flap, RH,
(Track No. 6)
665 Inboard Flap Track Fairing, Outboard Flap, RH,
(Track No. 7)
667 Outboard Flap Track Fairing, Outboard Flap, RH, (Track No. 8)
(2)
Access Panels
(a)
Track No. 1 567BB Outboard Flap Track Fairing, Outbd Flaps 567CB Movable Flap Track Fairing, Outbd Flaps 567DB Movable Flap Track Fairing, Outbd Flaps 567EB Movable Flap Track Fairing, Outbd Flaps
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