CHAPTER 28
PAGE 12
MAINTENANCE MANUAL EXTRA 300/SC
PAGE DATE: 16. June 2008
28-10-05 Wing Tank Inspection Door
Removal/Installation
1 Drain the fuel system per Chapter 12-10-02.
2 Disconnect the ground bonding leads and if necessary (LH
wing tank) the electrical wiring of the lever-type tank unit
(3, Figure 4).
3 Remove the inspection door bolts.
4 Remove the inspection door flange (1).
5 Push the inspection door (2) into the tank, then turn and
remove.
W A R N I N G Stripping solvents can be toxic and volatile. Use only
in well ventilated areas. Avoid physical contact with
solvent and do not inhale vapors. Keep solvent contain-
ers covered when not in use.
6 Clean the sealing surfaces mechanically and with Acetone.
7 Install in reverse sequence of removal after applying 3M
Brand Fuel Resistant Coating 776 (3M, St. Paul, USA) to
the sealing surfaces (inspection door and tank root rib).
Figure 4 Inspection Door Removal/Installation
MAINTENANCE PRACTICES
PAGE DATE: 29. May 2009
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