CHAPTER 12
PAGE 6
PAGE DATE: 7. July 2010
MAINTENANCE MANUAL EXTRA 300LT
12-10-02 Defueling
D A N G E R During aircraft defueling observe the safety precautions
specified in section "12-10-01 Refueling".
Using appropriate containers, defuel the aircraft by opening
both wing tank, the gascolator and the center tank drain
valves.
The wing tanks and the center tank can be drained independently
from the complete system by opening only the respective
drain valves. Always drain both wing tanks simultaneously.
After wing tank defueling, drain the fuel line connecting the
wing tanks as follows:
1 Place appropriate container under the 3-port tee-block
fitting under the copilot seat.
2 Disconnect one wing tank line from the the 3-port tee-block
fitting.
3 Allow draining the fuel which remained in the fuel line.
4 Reinstall the fuel line to the 3-port tee-block fitting.
12-10-03 Fuel Drains
The EXTRA 300LT has four fuel drain valves for drainage of
moisture and sediment. One fuel drain valve labelled
WING TANK DRAIN is located in the root section of the
underside of each wing. The fuel drain valve for the center
and acro tank (CENTER TANK DRAIN) is located at the
bottom of the fuselage in the area of the landing gear.
Another fuel drain valve which is interconnectecd to the fuel
gascolator is located in the lowest point at the right side of
the firewall (GASCOLATOR DRAIN).
D A N G E R Do not drain the fuel system when the engine or the
exhaust is hot or when the wind is strong.
A quantity of fuel must be drained prior to the first flight of
the day and at least five min. after refueling to inspect for
REPLENISHING
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