Piper SENECA III - Page 271

PIPER
AIRCRAFT
CORPORATION SECTION
9
PA-34-220T,
SENECA
III
SUPPLEMENT
4
(g)
PREFLIGHT CHECK
(Run
prior
to
each
flight)
(1)
With
no
modes
engaged
and
power
applied
to
all
systems,
depress
the
TEST button
on
the
Mode
Controller.
All mode
annunciators
will
be
illuminated
on
the
annunciator
panel
and
the
red
autottim
failure
light wil
flash.
At
least
four but
no
more
than
six
flashes
must
be observed
to
indicate
proper
operation
of the
autotrimimanual ciectric trim
feature
and
an
audible
warning
should
sound
(2)
Engage
the
FD,
then
engage
AP.
depress
the
CWS
switch,
center
the
flight
controls
and
release
CWS.
Apply
force
to
the
controls
to
-determine
if
the AP
can
be overpowered.
(3)
Check
that the
pilot's
emergency
disconnect
switch
disconnects
the
autopilot.
(4)
Perform
the
following
manual
electric
pitch
trim checks:
a.
Actuate
the
left-side
switch
to
the
fore
and
aft
positions.
The
trim
solenoid
should
engage,
but the
trim
should
not
run.
(Solenoid
engagement
may
be
confirmed
by
addi-
tional
force
required
to
move
trim wheel.)
b.
Actuate
the
right-side
switch
to
the
fore
and aft
positions.
The
trim
solenoid should
not
engage
and
the
trim
should
not
run.
c.
Grasping
the
manual
trim
wheel,
run
the trim
both
up
and
down
and
check the
overpower
capability.
d.
Press
the
AP
DISC/TRlM
INTERRUFT
switch
down
and
hoki
The
manual
electric
pitch
trim will
not
operate
either
up
or
down.
e.
Set
manual
trim for
takeoff.
(5)
Daily
preflight
check
(must
be
performed prior
to
first flight
of
the
day)
a.
Engage
the
FD
and
AP
and
put
in
a
pitch (UP)
command
using
the
vertical
trim switch
on
Mode Controller Hold
the
control
column
to
keep
it from
moving and
observe
the
autotrim
run
in
the
nose-up
direction after approximately
three
seconds
delay.
Use
the
vertical
trim
switch and
put
in
a
pitch
(DN)
command.
Hold
the
control
column
and
observe
the
autotrim
run
in
the nose-down
direction
after
approximately
3
seconds
delay,
b.
Engage
the
HDG mode
and
the
AP. Set
the
HDG
bug
to
command
a
right
turn.
The
control
wheel will
rotate
clock-
wise.
Set
the
HDG
bug
to
command
a
left
turn.
The
control
wheel
will
rotate
counterclockwise.
ISSUED:
APRIL 21,
1981
REPORT:
VB-Ill0
REVISEDi
FEBRUARY 25,
1982
9
of
16, 9-27