SECTION 7
CESSNA
MODEL 172R (180 HP)
AIRPLANE & SYSTEMS DESCRIPTION
NOTE
When the fuel tanks are 1/4 full or less, prolonged
uncoordinated flight such as slips or skids can uncover the
fuel tank outlets. Therefore, if operating with one fuel tank
dry or if operating on LEFT or RIGHT tank when 1/4 full or
less, do not allow the airplane to remain in uncoordinated
flight for periods in excess of 30 seconds.
FUEL DRAIN VALVES
The fuel system is equipped with drain valves to provide a means
for the examination of fuel in the system for contamination and
grade. The system should be examined before each flight and after
each refueling, by using the sampler cup provided to drain fuel from
leach
wing tank sump and the fuel strainer sump. If any evidence of
fuel contamination is found, it must be eliminated in accordance
with the Preflight Inspection checklist and the discussion in Section
8 of this publication. If takeoff weight limitations for the next flight
permit, the fuel tanks should be filled after each flight to prevent
condensation.
7-28
Oct 4/01
Summary of Contents for 172R180HP
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