747-400 AMM 飞机维护手册 安定门 STABILIZERS(29)

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 A.  The horizontal stabilizer actuator fitting attaches the stabilizer center section front spar to the trim drive mechanism at the upper gimbal. The trim drive rotates the stabilizer by a jackscrew through the upper gimbal, translating load through actuator ribs to pivot hinges at the stabilizer center section rear spar.
Elevator Attach Fittings (Fig. 1)
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 A.  The elevator is attached from hinge fittings on ribs extending from horizontal stabilizer rear spar to elevator front spar. On each side, there are twelve hinges on the elevators, four elevator hinges and one reaction hinge on the inboard elevator and six elevator hinges and one reaction hinge on the outboard elevator.
Fin Attachment Fittings (Fig. 2)
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 A.  The fin is attached to the fuselage by bolt and angle attachments at front and rear spars, angle fittings between spars and a pinned link fitting between auxiliary spar and fuselage. Link fitting allows vertical movements. The attachment is strengthened by body fittings, splice plates and stiffeners. At six locations, on both the left and right side, tension bolts, in clearance holes, are installed into barrel nuts (section A-A). The apparent threads in bearing at these locations are structurally acceptable as shear is carried by other bolts in the pattern.
Rudder Attachment Fittings (Fig. 2)
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 A.  The rudder is attached by hinge fittings on ribs and chords extending from fin rear spar to centerline of rudder front spar. There are eleven hinges on rudders, seven on upper rudder and four on lower rudder.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
REAR SPAR ACTUATOR
HINGE FITTING RIB (2 LOCATIONS)
REAR SPAR
SPLICE STABILIZER
PLATES CENTER SECTION ELEVATORS
SEE A  FRONT SPAR
REMOVABLE PANEL
UPPER
HINGE GIMBAL
RIB ACTUATOR
ACCESS
ATTACH HOLE
FITTINGS
STABILIZER CENTER SECTION
A
ELEV ELEV ELEV
STA STAOUTBOARD STA REACTION
232 119ELEVATOR
SEE BHINGES257
HORIZONTAL STABILIZER REAR SPAR
ELEVATOR HINGE (EXAMPLE, 10 LOCATIONS)
INBOARD 
ELEVATOR 
ELEV 
ELEV  ELEV  ELEV  ELEV  ELEV ELEV  ELEV STA  ELEV 
STA  STA  STA  STA  STA  STA  STA  107  STA 
407  357  307  244  207  182  132  82  HINGE 
ATTACHMENT LUG 

SPLICE FITTING
ELEVATOR
FRONT SPAR HORIZONTAL STABILIZER FRONT SPAR
____THE INBOARD ELEVATOR IS SHOWN. THE
NOTE: OUTBOARD ELEVATOR SUPPORT STRUCTURE B IS ALMOST THE SAME.
Horizontal Stabilizer and Elevator Attach Fittings
Figure 1

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400 MAINTENANCE MANUAL
RUDDER HINGE FITTING LOCATION (EXAMPLE 10 LOCATIONS)
RUD STA 332
SEEB SEEA

RUD STA 283 RUD STA
RUD STA 245 RUD STA 233
RUD STA 208 A
RUD STA 158
A

RUD STA 108 RUD STA 95 POWER CONTROL
RUD STA 83 PACKAGE CENTERLINE
RUD STA 33
RUD STA 133
POWER CONTROL PACKAGE CENTERLINE FIN SKIN
A FIN/BODY ANGLE FITTING
REAR SPAR WEB (EXAMPLE)
REAR SPAR
BODY FITTING

FITTING
(EXAMPLE)

FIN SKIN FRONT SPAR FIN FITTING
BODY BULKHEAD FIN STIFFENER (EXAMPLE)
BODY STIFFENER
SPLICE PLATE
FITTING

BULKHEAD SPLICE FITTING
B
Vertical Stabilizer (Fin) and Rudder Attach Fittings Figure 2 (Sheet 1)
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