Piper SENECA III - Page 371

PIPER
AIRCRAFT
CORPORATION SECTION 9
PA-34-220T,
SENECA
HI SUPPLEMENT 18
(e)
COMPASS
SYSTEM (NSD
360A)
(For other
compass
systems,
refer
to
appropriate
manufacturer's
instructions)
(1)
Check
slaving
switch
in slave
or
slave
1
or
2 position,
as
appropriate.
(Slaving
systems
with
R.M.I.
output
provide
only
slave
and
free
gyro
positions.)
(2)
Rotate
card
to center
slaving
meter
-
check HDG displayed
with
magentic
compass
HDG.
(3)
Perform
standard
VOR
receiver
check.
(4)
NAV-APPR
-
Engage
NAV
or
APPR
mode switch and
observe
steering bar
indicates
turn
torward
the
VOR
needle.
NOTE
If
the
Omni Bearing Selector
is
more
than 45°
from
the
aircraft
heading,
the
flight
director
steering
bar
will
only
indicate
a
turn
toward the
omni
bearing.
(f)
IN-FLIGHT
PROCEDURE
-
FLIGHT DIRECTOR
(!)
Century
4l
circuit
breaker
-
IN.
Flight director
switch
-
ON.
(2)
Adjust
HDG
bug
to
aircraft heading
and
select desired pitch
attitude by
activation
of
the
CWS
(Pitch
Synch)
switch
or
the
modifier
switch.
(3)
Maneuver
aircraft
manually
to
satisfy
the
commands
presented.
Select
other
modes
as
desired;
refer
to
Century
4l
Operator's Manual
for mode description.
(g)
IN-FLlGHT
PROCEDURE
-
AUTOPILOT
FLlGHT
DIRECTOR
AUTOPILOT
(I)
Flight director
switch
-
ON, if FD
equipped.
Rotate
heading
bug
to
desired
heading.
(2)
Trim
aircraft
for
existing flight
condition
(all
axes). Engage
autopilot.
(3)
During
maneuvering
flight-control
aircraft
through
use
of
the
HDG
bug
and the
pitch
modifier.
(HDG-ATT
modes)(Foruse
of
pitch
synch
switch
see
Operator's
Manual.)
(4)
For
navigation
operations
select
modes
as
required
by the
operation being
conducted
and
in
accordance with
the
mode
description
provided
in
Operator's
Manual
For
specific
instructions
relating
to
coupled
instrument
approach
operations, refer
to
Special Operations
and
Information
Section
4
item
(i)
ISSUED:
APRIL
21,
1981
REPORT:
VB-1110
9
of 12, 9-121