Mooney M20K - Fiberglass Laminates, Repair Procedures

SERVICE
AND
MAINTENANCE
MANUAL
M20K MOONEY
AIRCRAFT
CORPORATION
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(5
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SIDE)
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SIDE)
SM51-18
a
S~RAIGHT#5
h
~6
SWAGE
SE~
BENT
#5
SWAGE
SET
SPAR
REPAIR
FIGURE
51-18
1.
Materials
used for
repairs
shall be
as
specified
I
SM51--19
and
compatible
with
the basic resin´•used
in
the
fiberglass
laminate.
REMATING
HORIZONTAL
STABILIZER TO STRINGER
Resin
Aerospace
Adhesive
EA934
Part
A
FIGURE
51-19
Hysol
Division
proper
shaping
of
the
backup plates
used for
clamping
The
Dexter
Corporation
the
laminates
together during
the
curing
cycle.
Catalyst
Aerospace
Adhesive EA934 Part
B
8.
The
degree
of
laminate
chamfer
and size
will
Hysol
Division
vary
based
on
accessibility, shape
of
part
and
the
ex-
The
Dexter
Corporation
tent
of
damage.
Alternates:
51-15-01
CRACKS,
IN
SURFACE AREAS
Resin
Epoxical
#606
Patching
Adhesive
Resin
1.
Stop
drill
all cracks
per
standard aircraft
proce-
United
States
Gypsum
dure.
2.
Remove
any
loose
particles
and
frayed
fiberglass
Catalyst
Epoxical
~606
Patching
Adhesive
strands from
the
cracked
portion.
Hardner
3.
Prepare
surface for
repair
as
shown
in
(Figure
United States
Gypsum
OR
51-20,
Figure
51-21,
and
Figure
51-22).
Resin
Ren
Epoxy
CG
1304
4.
Prior
to
continuing
the
repair,
all
surfaces
in the
Ren
Plastics
Co.
area
of
the
repair
must
be cleaned
of
all
contaminates
Lansing,
Michigan
by
wiping
the
area
with
a
clean
cloth
saturated
with
Methyl-Ethyl
Ketone.
Catalyst
Ren
Hardener
CG
1304
Ren Plastics
Co.
CAUTION
Lansing,
Michigan
Methyl Ethyl
Ketone
(M.E.K.)
is
a
flammable
liquid
Fire
retardation
Antimony
Trioxide for fire
retardation,
and
should
be
used
with
proper
ventilation and
the
5%
minimum;
10%
maximum
by Weight
of
Resin
Con-
prescribed safety equipment.
tent.
Must
be added
to
the base resin
(cowling
and air
CAUTION
intake
duct
assemblies).
Fiberglass
components
are
attacked
and
The
manufacturer’s
bulletins
shall be
followed
for all
deteriorated
by
the
following products:
Ketone,
mixing
ratios
and
preparation prior
to
application.
aliphatic
esters,
chlorinated
hydrocarbons,
and
2.
General.
slightly
softened
by
aromatic
hydrocarbons.
A.
The
configuration
of
repairs
are
shown
for flat
51-15-02
NON-STRUCTURAL
REPAIR
surface
areas;
for
simplicity;
however,
the
same
techni-
(FIGURE 51-20)
ques
can
be
used
for
contoured surfaces.
Contoured
i.
Apply
masking
tape
over
crack
on
finished
sur-
repairs
will
require
additional
considerations
and the
face
side.
51-15-01
18
OLDWILLWAYNE