Piper SENECA III - Page 286

SECTION
9
PIPER
AIRCRAFT
CORPORATION
SUPPLEMENT
5
PA-34-220T,
SENECA
III
NOTE
The
flight control
system
incorporates
its
own
annunciator
panel
which
is located
on
the
instrument
panel.
The
modes and
indications
given
on
the
annunciator
panel
are
placarded
on
the
face of
the
lenses
and
illuminate
when
the
respective
modes
are
active. The
switches
on
the
mode
selector
are
the push-on,
push-off
type.
When
engaged,
the
correspondíng
autopilot
annunciator
light
illuminates.
The
autopilot
must
be
engaged
before
any
other
mode
can
be
selected.
(f)
BEFORE
ENGAGING
FLIGHT
CONTROL SYSTEM
(1)
Check
that
all
circuit
breakers
for
the
system
are
in.
(2)
Allow
sufficient time for
gyros
to
come
up
to
speed
and
system
warm-up
(3-4
minutes),
(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
except
FD
will be
illuminated
on
the
annunciator
panel,
including
three
marker
lights. At least
four but
no
more
than
six flashes
must
be
observed
to
indicate
proper
operation
of
the
autotrim/manual
electric trim feature
and
an
audible
warning
should
sound.
(2)
Engage
the AP,
depress
the
CWS
switch,
center
the
flight
controls
and
release
the
CWS
switch. Apply
force
to
the
controls
to
determine
if
the
AP
can
be
overpowered.
REPORT:
VB-III0
ISSUED:
APRIL 21,
1981
9-40,
8 of
14