Textron 172R180HP, Pilot Operating Handbook

Page: 95 / 396

CESSNA
MODEL 172R (180 HP)
SECTION 4
NORMAL PROCEDURES
2. Main Wheel Tire -- CHECK for proper inflation and general
condition (weather checks, tread depth and wear, etc ... ).
3. Fuel Tank Sump Quick Drain Valves -- DRAIN at least a
cupful of fuel (using sampler cup) from each sump location to
check for water, sediment, and proper fuel grade before each
flight and after each refueling. If water is observed, take
, ,urther samples until clear and then gently rock wings and
lower tail to the ground to move any additional contaminants
to the sampling points. Take repeated samples from all
fuell
drain points until
all
contamination has been removed. If
contaminants are still present, refer to WARNING below and
do not fly airplane.
AwARNING
IF, AFTER REPEATED SAMPLING, EVIDENCE OF
CONTAMINATION STILL EXISTS, THE AIRPLANE
SHOULD NOT BE FLOWN. TANKS SHOULD BE
DRAINED AND SYSTEM PURGED BY QUALIFIED
MAINTENANCE PERSONNEL. ALL EVIDENCE OF
CONTAMINATION MUST BE REMOVED BEFORE
FURTHER FLIGHT.
4. Fuel Quantity -- CHECK VISUALLY for desired level.
5. Fuel Filler Cap -- SECURE and VENT UNOBSTRUCTED.
@NOSE
1. Fuel Strainer Quick Drain Valve (Located on bottom of
fuselage) -- DRAIN at least a cupful of fuel (using sampler
cup) from valve to check for water, sediment, and proper fuel
grade before each flight and after each refueling. If water is
observed, take further samples until clear and then gently rock
wings and lower tail to the ground to move any additional
contaminants to the sampling points. Take repeated samples
from
all
fuel drain points, including the fuel reservoir and
fuell
selector, until
all
contamination has been removed. If
contaminants are still present, refer to the WARNING above
and do not fly airplane.
Oct 4/01 4-9