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CESSNA AIRCRAFT COMPANY
SINGLE ENGINE
STRUCTURAL REPAIR MANUAL
GLASS FABRIC REPAIR
1.
General
A.
The following procedures are for parts which are constructed of epoxy prepreg glass fabric.
2.
Tools and Materials
NOTE:
Equivalent substitutes may be used for the following:
NAME
NUMBER
MANUFACTURER
USE
Fiberglass
181 weight
Hexcel
Repair composite
structures.
Polyethylene sheet
Commercially available
Cover patches while
curing.
Adhesive
EA9394
Loctite Aerospace
Bay Point, CA 94565
Adhesive resin.
Adhesive
EA9396
Loctite Aerospace
Adhesive resin.
Adhesive
Epon 815
Loctite Aerospace
Adhesive resin.
Methyl Propyl Ketone
Commercially available
Cleaning solvent.
Sandpaper
Various grits
Commercially available
Abrading, smoothing.
Rubber sheet
Commercially available
Cover patches when
applying pressure.
3.
Repair Of Glass Fabric Parts
A.
The procedures listed below are for repairing of glass fabric parts. Refer to Figure 801 for an illustration
of a typical glass fabric repair.
(1)
Cut and trim area immediately beyond damage. If parts were painted, remove paint and sand
clean an area at least 1-1/2 inches larger in diameter than the cut out section.
(2)
Prepare necessary size and number of patches of glass fabric style No. 181.
WARNING: Always follow manufacturer's mixing instructions carefully to
ensure proper cure and prevent a spontaneous
fi
re.
(3)
Mix suf
fi
cient amount of resin in accordance with manufacturers instructions.
(4)
Ensure that hands are free from oil, grease, and dirt, and apply an even coat of resin on sanded
area.
(5)
Impregnate all the glass fabric patches by laying them on a polyethylene sheet and working the
resin through the glass fabric with a small brush.
(6)
Place larger patch over cutout area, working out all air bubbles and wrinkles.
(7)
If cutout is large enough to cause the patch to sag, place a suitable support behind repair area.
(8)
Apply a second patch over the
fi
rst patch, working out all wrinkles and air bubbles.
(9)
After all patches have been applied, brush the area with an even coat of resin and allow to cure.
Curing time is 24 hours at 77°F.
(10) Smooth patched area with 600-grit sandpaper until desired
fi
nish is obtained.
(11) Repaint
fi
nished area with matching paint. Refer to the applicable Maintenance Manual, Chapter
20, Exterior Finish - Cleaning/Painting for painting procedures.
51-73-00
Page 801
© Cessna Aircraft Company
Jun 1/2005
Содержание 172 Skyhawk SERIES
Страница 11: ...CHAPTER STANDARD PRACTICES STRUCTURES ...
Страница 68: ...CHAPTER 52 DOORS ...
Страница 74: ...CHAPTER 53 FUSELAGE ...
Страница 97: ...CHAPTER 55 STABILIZERS ...
Страница 106: ...CHAPTER 56 WINDOWS ...
Страница 115: ...CHAPTER 57 WINGS ...
Страница 158: ...CHAPTER 71 POWER PLANT ...