57-51-00
ALL ú ú B01 Page 1 ú Oct 25/84
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
TRAILING EDGE FLAPS - DESCRIPTION AND OPERATION
_______________________________________________
1. General_______
A. Each trailing edge flap consists of a midflap, a foreflap and an aftflap. The three flap segments are mechanically separated during flap extension. Each trailing edge flap is supported by two flap carriages which travel on tracks mounted under the wing.
2. Midflap_______
A. The inboard midflap consists of ribs, three spars, a honeycomb trailing edge and clad aluminum skins. A hinged flap segment is attached to the outboard trailing edge of the midflap. Four tracks mounted on the rear spar of the midflap support the aftflap.
B. The outboard midflap consists of ribs, two spars, a trailing edge beam, two honeycomb trailing edge panels and clad aluminum skins. Four tracks mounted on the rear spar protrude through the trailing edge beam to support the aftflap.
3. Foreflap________
A. The foreflap is a monospar structure with a honeycomb trailing edge panel and clad aluminum skins. Three curved support beams extend through the lower surface and connect to three foreflap tracks.
4. Aftflap_______
A. The aftflap is also a monospar structure with a honeycomb trailing edge panel and clad aluminum skins. Four carriages are installed on the leading edge of the aftflap.
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57-52-00
ALL ú ú B01 Page 1 ú Oct 20/83
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500
MAINTENANCE MANUAL
SEE A
SEE B
SEE A
MIDFLAP
FOREFLAP AFTFLAP
LEFT OUTBOARD FLAP SHOWN
FWD AFTFLAP (RIGHT SIDE OPPOSITE)
CARRIAGE A
INBD
AFT FLAP
MID FLAP
INBD
FORE FLAP
FWD
LEFT INBOARD FLAP SHOWN
(RIGHT SIDE OPPOSITE)
B
Trailing Edge Flap Installation
Figure 1 (Sheet 1)
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57-52-00
ALL ú ú B01 Page 2 ú Oct 25/84
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
LEADING EDGE FLAPS - DESCRIPTION AND OPERATION
______________________________________________
1. General_______
A. Two Krueger-type leading edge flaps are installed on each wing. The flaps are numbered 1 through 4 from left to right. Each flap is a machined aluminum casting containing integral ribs and stiffeners. Each flap has four gooseneck hinges which attach to fittings in the leading edge of the wing. A centrally located fitting is also provided on each flap for connecting the flap to a hydraulic actuator. A hinged fairing is installed on the trailing edge of each flap. The fairing extends the full length of the flap on leading edge flaps 2 and 3 and approximately the inboard 70 percent on flaps 1 and 4.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
57-53-00
ALL ú ú B01 Page 1 ú Oct 20/83
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
LEADING EDGE
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