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2
Thermoplastic plate, thickness 2 to 4 mm (0.079" to 0.157")
7 ty : S/ N 1 - 9999 AA Validity 51-30-02Page 207
(BA) SEP 04
C. Honeycomb sandwich elements
Materials approved for repairs
- Epoxy resin (TB 08-909) + (TB 08-923) + (TB 08-924)
- Glass fabric (TB 23-900)
- Mixture : Epoxy resin + microballons (glass fabric microballons) including :
- microballon powder (TB 05-057A)
- ARALDITE 121N (TB 08-909)
- ARALDITE AY 103 (TB 08-923)
- HARDENER HY 951 (TB 08-924) 1) Defect 1 : Skin perforation with honeycomb core damage
- Bore the defect area,
- Fill with the mixture,
- Restore the skin by stacking N* glass fabrics (TB 23-900) impregnated with resin (TB 08-909), after having sanded the covering area with sandpaper (TB 05-916),
- Deburr and sand with sandpaper (TB 05-916).
Tissus de verre
Glass fabrics
2) Defect 2 : Blister or burning at the location of a recess
- Sand the surface where the blisters appear sandpaper (TB 05-916),
- Cover the sanded area with N* glass fabrics (TB 23-900) (TB 08-923) + (TB 08-924),
- Deburr and sand with sandpaper (TB 05-916).
Recouvrement en degrade Gradual covering
AAAA
Validity : S / N 1 - 9999 51-30-02Page 208
(BA) SEP 04
3) Defect 3 : Unsticking or burning of the skin
- Cut out the unstuck skin,
- Sand the covering area with sandpaper (TB 05-916),
- Restore the coating with N* glass fabrics (TB 23-900) (TB 08-923) + (TB 08-924),
- Deburr and sand with sandpaper (TB 05-916). impregnated with resin (TB 08-909) +
/-- Recouvrement en degrade
Gradual covering
N* : from 1 to 4 depending on defect depth
WA
Validity : S / N 1 - 9999
51-30 02 Page 209
(BA) SEP 04
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Validity : S / N 1 - 9999 I cA 51-30-02Page 210
(BA) SEP 04
FASTENERS
DESCRIPTION AND OPERATION
1. GENERAL
This chapter describes the various fastener types used in aircraft manufacturing. Almost all structure assembly is carried out with rivets of various types. Some structure elements and movable parts are assembled using screws and nuts.
COMPONENT QTY AREA ACCESS DOOR REFERENCE
Hardware (screws and bolts) / / / 51-40-01
Rivets / / / 51-40-02
WA
Validity : All 51-40-00Page 1
(BA) SEP 91
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WA
Validity : All 51-40-00Page 2
(BA) SEP 91
HARDWARE (SCREWS AND BOLTS)
1. GENERAL
A. Drilling diameters
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本文链接地址：TB20 MAINTENANCE MANUAL 51 标准施工/结构 TB20飞机维护手册(7)
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