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As necessary. Refer to Section 25-10.
(22) Do an air test. Refer to the DA 40 Airplane Flight
Manual.
AIRCRAFT
Wings DA 40 Series
AMM
Page 212
20 Sep 2007 57-10-00 Doc # 6.02.01
Rev. 5
A-Bolt
B-Bolt
Rear
Root Rib
Front
Root Rib
Bonded
Bush
Bonded
Bush
Access
Hole Access
Panel
RIGHT SHOWN LEFT OPPOSITE
3. Remove/Install the A or B-Bolts
A. Remove the A or B-Bolts
Detail Steps/Work Items Key Items/References
(1) Remove the wing Refer to Paragraph 2.
(2) Remove the A or B bolt:
S Hold the flats on the flange of the bolt with a
wrench.
S Remove the self-locking nut from the A or Bbolt.
S Remove the A or B-bolt.
Refer to Figure 4.
Access for the A-bolt through the hole
in the front root rib.
Access for the B-bolt through the
access panel in the bottom shell.
Figure 4: A and B-Bolt Installation
AIRCRAFT
DA 40 Series
AMM
Wings
Doc # 6.02.01
Rev. 5 57-10-00 Page 213
20 Sep 2007
B. Install the A or B-Bolts
Detail Steps/Work Items Key Items/References
(1) Examine the A or B-bolt. Look specially for:
S Corrosion.
S Scratches on the bearing surfaces.
S Deformation.
S Damage to the threads.
No corrosion permitted.
Maximum depth 0.1 mm (0.004 in).
No deformation permitted.
No damage permitted.
(2) Examine the A or B-bolt bush. Look specially for:
S Looseness between the A or B-bolt bush and
the root rib.
S Damage to the root rib where the bush
attaches.
S Damage to the bush.
(3) Install the A or B-bolt:
S Install the bolt in the bush.
S Hold the flats on the flange of the bolt with a
wrench.
S Install the washer and self-locking nut.
Refer to Figure 4.
Access for the A-bolt through the hole
in the front root rib.
Access for the B-bolt through the
access panel in the bottom shell.
Torque: 32 Nm (23.6 ft.lb).
(4) Install the wing. Refer to Paragraph 2.
AIRCRAFT
Wings DA 40 Series
AMM
Page 214
20 Sep 2007 57-10-00 Doc # 6.02.01
Rev. 5
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Figure 5: Control Surface Hinge Bracket Installation
AIRCRAFT
DA 40 Series
AMM
Wings
Doc # 6.02.01
Rev. 5 57-10-00 Page 215
20 Sep 2007
4. Remove/Install Control Surface Hinge Brackets
A. Remove Control Surface Hinge Brackets
Detail Steps/Work Items Key Items/References
(1) Remove the control surface. Refer to Sections 57-50 and 57-60.
(2) For brackets at the control horn hinge:
S Remove the control bell-crank access panel
under the wing.
S Remove the attaching nuts and large
washers.
S Remove the bolts and small washers.
S Remove the bracket.
The flap brackets have 3 bolts.
The aileron brackets have 2 bolts.
From inside of the wing.
(3) For brackets not at the control horn hinge:
S Remove the bolts and small washers.
S Remove the bracket.
All brackets have 2 bolts.
AIRCRAFT
Wings DA 40 Series
AMM
Page 216
20 Sep 2007 57-10-00 Doc # 6.02.01
Rev. 5
B. Install Control Surface Hinge Brackets
Detail Steps/Work Items Key Items/References
(1) For brackets at the control horn hinge:
S Put the bracket in position on the rear web.
S Install the bolts with small washers.
S Install the large washers and self-locking
nuts.
S Install the control bellcrank access panel
under the wing.
The flap brackets have 3 bolts.
The aileron brackets have 2 bolts.
From inside of the wing.
Torque: 3.6 Nm (2.7 ft.lb).
(2) For brackets not at the control horn hinge:
S Put the bracket in position on the rear web.
S Install the bolts and small washers.
All brackets have 2 bolts.
Torque: 3.6 Nm (2.7 ft.lb.).
(3) Install the control surface. Refer to Sections 57-50 and 57-60.
AIRCRAFT
DA 40 Series
AMM
Wings
Doc # 6.02.01
Rev. 5 57-10-00 Page 217
20 Sep 2007
5. Repair Data for the Wing Shells
Figures 6 through 9 show the layers of glass fiber cloth in the wing shells. Use this data when you
need to repair the wing.
The Figures show the main layers of cloth. The cross-hatching on the figure shows the orientation of
the fibers. The orientation is also given in the related table. When you repair the wing, you must use
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