Piper SENECA III - Page 272

SECTION
9
PIPER
AIRCRAFT CORPORATION
St
PPL
EMEÑT
4
PA-34-220T, SENECA
in
c.
kun
manual
electric
Irim
from
full
nose
up
to
fúll
nose
down.
Time
required
should
be 39
+5
seconds.
CAET7ON
Disengage the
AP
and check that the
airplane
manual
pitch
trim
is in
the
takeoff position
prior
to
takeoff,
NOTE
If the
autopilot circuit breaker
is pulled.
the
red
TRlM"
failure light
on
the
dnnunciator panel
will
be
disabled
and the
audible
warning.
will
continuously
sound
indicating
that the
failure
light
is disabled,
in
this
event,
the
"Pitch
Trim"
circuit
breaker
should
be pulled
and
in-flight
trim
accomplished by
using the
manual
pitch
trim
wheet
th)
IN-FLIGHT
OPERATION
(1)
Engage
Procedure:
After
takeoff.clean
up
airplane
and
establish climb.
Engage
the
FD
mode
first,
monitor
flight
controls
and
engage
AP.
The
pitch
attitude
will
lock
on
any
attitude
up
to
15°
pitch
attitude.
Engaging and
holding the
CWS
switch allows
the
pilot
to
momentarily
revert
to
manual
control, while
retaining
his
previous
modes,
except
GA.
and
conveniently
resuming
that
profile
at
this
discretion.
02) Disengage
Procedure:
Check
the
airplane
trim
by
monitoring
the
command
bars
before
disengaging AP.
While monitoring
the
flight
controls,
disengage
the
system
by
one
of the
folowing methods: de-
pressing the
pilot's
AP
DISC
TRlM
lNTERRUPT
switch,
operation
of
the
manual
trim switch
or
by
the
operation of
the
AP
engage
lever
on
the
Mode
Controller.
The AP light
on
the
annunciator
panel
will
flash
at
least
four
times
and
remain off
and
an
audible
warning
will
be heard
to
indicate
the
AP is
disengaged,
To
deactivate
the
Flight Director System,depress
the
FD
switch
on
the
Mode
Controller
or press
the
AP DISC
TRIM
lNTERRUPT
switch
on
the
pilot's
control wheet
REPORT:
VB-1110
1SSUED:
APRIL
21
1981
9-28.
10
of
16
REVISED:
SEPTEMBER
23,
1-983