Extra 300/SC, Maintenance Manual

Page: 189 / 250

MAINTNANCE MANUAL EXTRA 300/SC
PAGE DATE: 12. February 2019 CHAPTER 53
PAGE 18
4 Install bottom fuselage cover attachment screws.
5 Install bottom cowling attachment screws (one on either
side) without cowling present (see two outer circles in Fig-
ure 13).
6 Loosen clamp screws on gascolator drain and fuel pump vent
lines for easy access (see inner dotted circles).
7 Prepare firewall sealant (refer to Chapter 51-30-04).
8 Clean areas (from inside and outside) with solvents at four
positions pointed out by the arrows in Figure 13. Immedi-
ately thereafter, dry these areas with a new dry cloth.
9 At the gascolator drain (position A) seal the remaining gap
between firewall and bottom fuselage cover from inside and
outside with firewall sealant. Minimum sealant thickness
approximately 1/8 inch (= 3 mm).
10 Repeat step 9 at positions B, C and D.
11 Observe applicable curing times.
12 Fasten clamp screws on gascolator drain and fuel pump vent
lines.
13 Remove the two bottom cowling attachment screws.
14 Reinstall main fuselage cover, landing gear cuffs and en-
gine cowling in accordance with this chapter.