2.
WEIGHING
PROCEDURES
2.1.
PREPARATION
Carry out weighing procedure inside closed hangar
Remove from cabin any object unintentionally left
Make sure Flight Manual and mandatory documents are on board
- Align nose wheel
Drain fuel via the specific drain valve
Oil and hydraulic fluid at the operating levels
Move sliding seats
in
middle position
Raise flaps to fully retracted position
Place control surfaces
in
neutral position
Place scales (min. capacity 300 kg (661.4 lb)) under each wheel
2.2.
LEVELLING
Level the aircraft (the reference for longitudinal levelling
is
made putting a
spirit-level on the cabin floor
as
shown
in
the Aircraft Maintenance Manual).
- Adjust longitudinal attitude deflating nose tire
2.3.
WEIGHING
Record weight shown on each scale
Repeat weighing procedure three times
Calculate empty weight
2.4.
DETERMINATION
OF C.G.
LOCATION
Drop a plumb bob tangent to the wing leading edge and trace a reference mark
on the floor (see Figure on Para. 2.5
or
2.6)
Repeat the operation for other wing
Stretch a taught line between the two marks
Measure the distance between the reference line and both main and nose wheel
axis (A and B distances respectively)
Using recorded data
it
is possible to determine the aircraft C.G. location and the
aircraft moment (see following table)
Section
6 -
Weight
and
Balance
WEIGHING
PROCEDURES
2"d
Edition, Rev. 7
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