Diamond DA 42 NG, Maintenance Manual

Page: 1641 / 2339

AIRCRAFT
DA 42 NG AMM
Standard
Practices/Structures
Doc # 7.02.15
Rev. 4
51-20-00
Page 205
15 Mar 2018
B. Laminating on a Work-Bench
Detail Steps/Work Items Key Items/References
(1) Prepare the damaged area for laminating:
S
Make sure that the repair is clean and free
of contamination.
Refer to the relevant repair procedure in
this Section.
(2)
%
Identify type of resin used for the parts to be
%
repaired.
%
Find the parts label and note the resin
%
system used for this part.
%
For S/N below 42.N300/42.MN100:
%
if the parts label does not state a type of
%
resin, and this manual does not give
%
instructions on the resin system to be
%
used for the specific part, use L285 for
%
repair.
%
In case of doubt, contact Diamond
%
Aircraft for assistance.
%
(3) Prepare the layers of cloth that you will use for
the repair.
Refer to the lay-up drawing.
(4) Put a layer of clean transparent
plastic/polythene sheeting over the repair area
and hold in place with self-adhesive tape.
(5) Use an indelible ink marker to:
S
Trace onto the plastic sheet the extreme
outline of the repair.
S
Trace onto the plastic sheet the contour
lines of each layer of cloth in the structure.
The outer layer of the structure must be
tapered to avoid stress risers and to give
a good finish.
(6) Remove the transparent sheet from the repair
area and place it upside down on a work-bench.
Note: The cloth layers are laid in reverse order when you laminate on a table. You
must take care to put the cut cloth layers in the correct order and that the fibers
in each cloth layer point in the correct direction.
(7) Cut the layers of cloth to fit the contour lines that
you traced onto the transparent sheet.