XtremeAIR XA41, Maintenance Manual

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Maintenance Manual XA41/XA42
AMM-XA42-0040-001 C.00
Page 12 Page date:
Chapter 51 25.09.2018
51-70-12 Damage description
It is very important to make an accurate damage description. This will be the basis for the
repair design. To record a damaged area on the aircraft for a repair design, use the forms in
Appendix 8. Record the position, the dimensions and the shape of the damage.
1 Communicate with the design organization to agree on the next steps. If more
information is necessary on the damage, it might be necessary to remove some
layers for a better damage inspection.
Be careful when you remove damaged material. If you remove too much material, the repair
area can increase or a part can become unserviceable for repair. If you are not sure about
the repair process, get the aid of the design organization.
2 Remove some damaged layers around the damage area without spreading too much
in the width.
3 Examine the area to know the depth of the damage and the number of damaged
layers.
4 Send the damage description to the design organization. If applicable, include it in
an occurrence report.
51-70-13 Repair guidelines
Be careful with resin. Do not get it on your skin and do not breathe the fumes to prevent
damage to your health.
1 Use the correct mixture ratio of resin and hardener (for example: 100:34 ± 2% for
L20/SL), refer to the manufacturer. Always use clean tools and containers. The
minimum quantity for a sufficiently accurate mixture is 50 g.
2 Use a volume ratio of composite fabric to resin mixture of 43% ± 5%. For this
volume ratio, the related weight ratios of carbon fabric to resin mixture are:
 50:50 (approximately) when you use vacuum bagging
 55:45 (approximately) when you do not use vacuum bagging.
CAUTION
WARNING