Cessna T188C - Page 370

MODEL
188
& T188
SERIES
SERVICE
MANUAL
which wing
spars
encounter,
very little
damage can
17-40. DAMAGE
NECESSITATING
REPLACEMENT
be
considered
negligible.
All cracks,
stress
wrinkles,
OF
PARTS.
If the
damage
would require
a repair
deep
scratches,
and sharp
dents must
be repaired.
which
could not
be made
between adjacent
ribs,
Smooth dents,
light scratches,
and abrasions
may be
complete skin
panels should
be replaced. Ribs
and
considered
negligible.
spars may
be repaired,
but replacement
is generally
preferable.
Where
extensive damage
has occurred,
17-28. REPAIRABLE
DAMAGE.
Figure
17-7 out-
replacement
of
the aileron
assembly
is recommended.
lines
typical spar
repairs. It is often
practical to
After
repair and/or repainting,
balance
in accordance
cut repair
pieces
from
spare
parts
listed
in Parts
with
figure
17-3.
Catalogs.
Service Kits
are available
for certain
types of
spar repairs.
17-41.
WING FLAPS.
17-29. DAMAGE NECESSITATING
REPLACEMENT
17-42. NEGLIGIBLE DAMAGE.
Refer to paragraph
OF PARTS. Damage so extensive that repair is not 17-15.
feasible
requires
replacement of
a complete wing
spar. Also refer
to paragraph 17-2.
17-43. REPAIRABLE
DAMAGE. Flap repairs should
be similar
to aileron repairs
discussed
in paragraph
17-30.
WING LEADING EDGE.
17-44.
A flap leading edge repair is
shown In figure
17-8.
17-31.
NEGLIGIBLE
DAMAGE.
Refer to paragraph
17-15.
17-44. BALANCING.
Since the flap is not
consider-
ed a
movable control
surface, no
balancing is
re-
17-32.
REPAIRABLE
DAMAGE.
A typical
leading
quired.
edge skin repair is shown in figure 17-8. An epoxy
type filler
may be
used to fill
gaps at butt
joints.
To
17-45. DAMAGE
NECESSITATING
REPLACEMENT
facilitate repair,
extra access
holes may be installed
OF
PARTS. Flap
repairs which
require replacement
in
the locations noted
in figure 17-9.
If the damage
of parts
should be similar
to aileron
repairs discuss-
would require
a repair which
could not be made be-
ed in paragraph
17-40.
tween adjacent
ribs, refer
to the following
paragraph.
17-46.
ELEVATORS
AND RUDDER.
17-33. DAMAGE NECESSITATING REPLACEMENT
OF
PARTS.
For extensive
damage,
complete
lead-
17-47.
NEGLIGIBLE
DAMAGE.
Refer
to paragraph
ing
edge skin
panels
should
be replaced.
To factli-
17-15.
The
exception
to negligible
damage
on the
tate replacement,
extra
access
holes may
be installed
elevator
surfaces
is the
front spar,
where
a crack
in the locations
noted in figure
17-9.
appearing in
the web at the
hinge fittings or
in the
structure
which supports
the overhanging
balance
17-34.
BONDED
LEADING
EDGE REPAIR.
wieght is
not considered
negligible.
Cracks
in the
overhanging
tip rib, in the
area at the front
spar in-
17-35.
NEGLIGIBLE
DAMAGE.
Refer to
paragraph
tersection
with
the web of
the rib, also
cannot
be con-
17-15.
sidered
negligible.
17-36. REPAIRABLE
DAMAGE.
(See figure
17-16.) 17-48.
REPAIRABLE
DAMAGE.
Skin patches shown
Cut
out damaged
area as shown,
to the edge of
un- In figure
17-4 may
be used to repair
skin between
damaged ribs.
Using
a corresponding
section
from
a corrugations.
Refer to
figure 17-15
for damage
which
new leading
edge skin,
overlap
ribs and
secure to
includes
corrugations.
It is recommended
that mate-
wing
using rivet
pattern
shown
in the
figure.
Blind
rial used
for
repair be
cut from
spare
parts
of the
rivets may
be used
in unaccessible
areas.
same
guage
and corrugation
spacing.
If the
damaged
area would
require a repair
which could
not be made
17-37.
AILERONS.
between
adjacent ribs,
see the following
paragraph.
17-38.
NEGLIGIBLE
DAMAGE.
Refer
to paragraph
17-49. DAMAGE
NECESSITATING
REPLACEMENT
17-15.
OF
PARTS. If the
damaged area
would require a
re-
pair which
could not be
made between
adjacent ribs,
17-39. REPAIRABLE
DAMAGE. The leading
edge complete skin
panels should be replaced.
Ribs and
skin repair
shown in figure
17-8 should
be used to
spars may be
repaired, but
replacement is
generally
repair damage to aileron
leading edge skins. The
preferable. Where extensive
damage has occurred,
flush-type
skin patches
shown in figure
17-4 may be
replacement
of the entire
assembly is recommended.
used
as a guide
to repair
damage
to flat surface
be-
After
repair and/or
repainting,
balance
in accordance
tween
corrugations, when damaged
area includes
with figure
17-3.
corrugations
refer to figure
17- 15. It is
recom-
mended that
material
used for repair
be cut from
17-50. FIN
AND STABILIZER.
spare parts of the same guage and corrugation spac-
ing. Following
repair the aileron must be balanced.
17-51. NEGLIGIBLE
DAMAGE. Refer to paragraph
If damage
would
require
a repair
which couldn't
be
17-15.
made between
adjacent
ribs, see
the following
para-
graph.
17-10