SECTION 6
CESSNA
WEIGHT AND BALANCE/EQUIPMENT LIST
MODEL 172S NAV III
AIRPLANE WEIGHING PROCEDURES
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2. Level:
a. Place scales under each wheel (minimum scale
capacity, 1000 pounds).
b. Deflate the nose tire and/or lower or raise the nose strut
to properly center the bubble in the level (refer to Figure
6-1).
3. Weigh:
a. Weigh airplane in a closed hangar to avoid errors
caused by air currents.
b. With the airplane level and brakes released, record the
weight shown on each scale. Deduct the tare, if any,
from each reading.
4. Measure:
a. Obtain measurement A by measuring horizontally (along
the airplane centerline) from a line stretched between
the main wheel centers to a plumb bob dropped from the
firewall.
b. Obtain measurement B by measuring horizontally and
parallel to the airplane centerline, from center of nose
wheel axle, left side, to a plumb bob dropped from the
line between the main wheel centers. Repeat on right
side and average the measurements.
5. Using weights from step 3 and measurements from step 4,
the Basic Empty Weight and C.G. can be determined by
completing Figure 6-1.
6. Changes to the Airplane Weight and Balance due to
alteration or repair must be documented in a permanent
record within the POH similar to that shown in Figure 6-2.
7. A new Basic Empty Weight and CG Arm based on actual
airplane weight (as weighed) is required after a major repair
or alteration. It is recommended that the airplane be
weighed to verify Basic Empty Weight and CG Arm at
intervals not to exceed 5 years.
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I
6-4 U.S.
172SPHAUS-01