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painted by the manufacturer.
B. Front Canopy and Emergency Windows
The one-piece canopy window covers the pilots’ cockpit. It is also the windscreen. It has a small
emergency window (direct-vision panel) on the left side. Some airplanes also have an emergency
window on the right side. The emergency windows have a hinge. You can open the emergency
windows in flight.
C. 'Pop out' Windows (OÄM 40-086)
The emergency windows can be furnished with optional small 'pop out' windows for ventilation
(OÄM 40-086).
D. Rear Windows
The passenger door has a window for the left side of the passenger compartment. The right side
of the fuselage also has a window for the passenger compartment.
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Windows DA 40 Series
AMM
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DA 40 Series
AMM
Windows
Doc # 6.02.01
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Maintenance Practices
1. General
This Section tells you how to replace or repair damaged windows. See Section 12-30 for data on
cleaning windows.
2. Replace a Window
You must cut the window to replace it!
A. Equipment.
Item Quantity Part Number
High-speed rotary grinder. 1 Commercial.
Terostat adhesive. A/R 9280
White sealant. A/R
B. Procedure
Detail Steps/Work Items Key Items/References
(1) Remove the canopy or door. Put the canopy or
door on a firm working surface.
Only if you will replace the canopy or
door window. Refer to Section 52-10.
(2) Put protective covers over the inside of the
cockpit.
Only if you will replace the right
fuselage window.
(3) Cut the damaged window from the frame. Use the high-speed rotary grinder.
(4) Grind the frame to remove the remaining window
material and adhesive.
(5) Put the window in position in the frame. Align the
2 holes in the window (center front and back) with
the holes in the canopy frame.
AIRCRAFT
Windows DA 40 Series
AMM
Detail Steps/Work Items Key Items/References
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(6) Carefully remove the protective coating from the
new window only where it will bond to the frame.
(7) Grind the bonding surface of the window. Use 120 grade abrasive paper.
(8) Make sure that the viewing area of the window is
protected.
Use masking tape with paper.
(9) Apply adhesive to the frame. Use Terostat 9380.
(10) Put the window in position in the frame. Hold the
window with 3 mm pins through the 2 holes in the
canopy.
(11) Removed unwanted adhesive.
(12) Allow the adhesive to cure for 24 hours.
(13) Remove the 2 pins.
(14) Apply a bead of white sealant to the gap between
the edge of the window and the frame.
Use Terostat 9380.
(15) Allow the sealant to cure. Follow the manufacturer’s instructions.
(16) Remove the protective covering from the window.
(17) Install the canopy or door. Only if you have replaced the canopy or
door window.
Refer to Section 52-10.
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DA 40 Series
AMM
Windows
Doc # 6.02.01
Rev. 5 56-10-00 Page 203
20 Sep 2007
3. Window Repairs
A. Damage Limits
Maximum crack length: 150 mm (6 in).
Do not repair cracks which are more than 150 mm (6 in) from the edge of the window.
B. Equipment
Item Quantity Part Number
Small high-speed rotary grinder. 1 Commercial
Filler: Acryfix 92 or Tensol cement No. 70. A/R Commercial
Masking tape. A/R Commercial
Plastic adhesive tape. A/R Commercial
Cold ultra-violet light source (only for Acryfix 92). A/R Commercial
Note: Fillers become smaller when they cure. Apply enough filler to be above the level
of the window surface. Cut the filler back when it has cured.
If you repair a vertical crack, keep the filler in place with plastic adhesive tape.
Apply a second coat of filler after the first coat has cured.
C. Temporary Repairs to Windows
Stop-drill the ends of short cracks. Use a 2.5 mm (3/32 in) drill. Refer to Figure 2.
AIRCRAFT
Windows DA 40 Series
AMM
Page 204
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Rev. 5
60-90° >2/3 Thickness
>1/3 Thickness
Masking
Tape
Masking
Tape
Outer
Surface
Outer
Surface
Inner
Surface
Inner
Surface
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
60-90°
Cold UV Light
Cold UV Light
(Acryfix Filler Only) Filler
(Acryfix Filler Only)
Filler
Grind to Contour and
Polish with Fine Abrasive Paper
　
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