SECTION 17.
SAILPLANE REPAIRS
TECHNICAL SERVICE MANUAL
SZD-54-2
„Perkoz”
page 17.12
Allstar PZL Glider Sp. z o.o.
Doc No. 542.4.02
Issue II
April 2014
Revision
corrected
17.3.1.3.
Damage to sandwich structure with puncture through
Fig. 17-11. Through damage
Fig. 17-12. Repair of through damage
In case of damage to the sandwich structure related to puncture it through, the
following must be done:
remove damaged parts of structure, make chamfer acc. to Fig. 17
‒12.,
laminate inner layer part on a piece of polyethylene foil, harden, fit into hole in the
shell,
grind surfaces to be joined and paste renovated inner layer part acc. to Fig. 17
‒12.,
fit the foam into the hole and paste it on composition with microballoon, lute foam
with composition with colloidal silica,
laminate outer layer according to fabrics specification in Fig. 17
‒1. ÷ Fig. 17‒6.,
perform repair of paint coating according to item 17.4.
NOTE:
Inner layer is made from very thin fabric. If repairer fail to leave intact
inner layer rim during cleaning of the hole in accordance with Fig.
17
‒2. it is necessary to enlarge the hole and re-prepare the rim.
