Defueling - Thrush Aircraft S2RHG-T65 TURBO THRUSH Maintenance Manual

THRUSH AIRCRAFT, INC – MODEL S2RHG-T65 TURBO THRUSH
It is common and normal after an engine
compressor Water Wash or Performance
Recovery Wash to have water or soap appear
in the reservoirs' drained waste fuel.
Visually check that all drain valves are closed
after draining.
C. The airframe is equipped with two fuel filters, a ¼ inch mesh finger strainer is
installed in the outlet fitting from the header tank and an airframe supplied,
gascolator type, 25-micron main fuel filter located on the forward L/H side of the
firewall. Inspect the ¼ inch mesh finger strainer annually or if the fuel system is
suspected or has been contaminated with foreign debris: i.e. Main fuel filter red
bypass indicator was popped, main fuel filter has contamination, foreign debris
noted in drained fuel sample container, known fuel contamination ...etc. The 25-
micron main fuel filter element should be inspected, cleaned or replaced, and
reinstalled every 100 hours, when the red fuel bypass indicator button has
popped, or any time fuel system contamination is suspected. Refer to chapter 5
for main fuel filter servicing procedures.
If the red fuel bypass indicator button has
popped out, determine and remove the cause of
the
Remove, inspect, clean or replace, and reinstall
the filter 25-micron element.
reset the red bypass button by pressing it in with
finger pressure.
During the defueling operation, jet fuel fumes are present; therefore, extreme caution
must be exercised to prevent fire hazards.
Smoking on or around the aircraft is not
permitted during the defueling procedure. Fire
extinguishing equipment must be immediately
available.
A. Ground aircraft and all defueling equipment or containers to the aircraft.
B. Place a vented container of adequate capacity under each of the three drain
points. Verify that the containers are properly grounded to the aircraft.
C. Open the drain valves and allow all fuel to drain.
Effective: 9/16/05
AIRCRAFT MAINTENANCE MANUAL
* NOTE *
** CAUTION **
*** WARNING ***
fuel obstruction

DEFUELING

*** WARNING ***
before further flight.
You may then
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