CHAPTER 28
PAGE 5
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RA - FLUGZEUGBAU GmbH
SERVICE MANUAL EXTRA 200
PAGE DATE: 1. July 1996
28-01-00 MAINTENANCE PRACTICES
28-01-01 Refueling/Defueling
Refer to Chapter 12 for detailed refueling/defueling proce-
dures.
28-01-02 Reduction of Fuel Tank Vapor Hazards
General Precautions
During all ventilation or maintenance procedures involving
the fuel system, observe the following general precautions.
1 Defueling should be outdoors with the aircraft at least
100 feet from hangars or other aircraft.
2 No smoking should be allowed within 100 feet of the
aircraft.
3 Suitable fire fighting equipment should be available.
Foam or soda type extinguishing agents are recom-
mended.
4 Ground the aircraft to prevent static electricity from
causing sparks. If a ramp ground is available it should
be connected to exhaust stack. If a ramp ground is not
provided, a temporary ground can be obtained by driv-
ing a metal rod into the ground and attaching a ground
wire between the rod and the aircraft exhaust stack.
5 Flame and spark producing equipment should not be
operated within 100 feet of the aircraft.
6 The aircraft should have its battery removed.
7 Only personnel working on the aircraft should be al-
lowed in the immediate area, and no other maintenance
should be performed while the tanks are being worked
on.
8 When a fuel tank is opened for repair, air ventilation
(refer to following Page) should be started immedi-
ately to reduce vapor concentrations.
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