Piper SENECA III - Page 387

PIPER
AIRCRAFT
CORPORATION
SECTION
9
PA-34-220T,
SENECA III
SUPPLEMENT
21
0)
Autopilot
may
be d connected by:
a.
Pressing
"AP
OFF"
har
on
pilots
trim
switch.
b.
Pressing
the
APON-OFFswitch
on
the
programmer
OFF.
c.
Depressing
Master
Disconnect
Trim
Interrupt
switch.
d.
Pulling the
AP
System
Circuit
breaker
OFF.
(2)
Autotrim
may
be
disconnected
by:
a.
Any
action
in
(1)
above.
or
b.
Puling
the
trim
system
circuit
breaker
OFF.
After
failed
system
has been
identified,
leave
system
circuit
breaker
open
and
do
not operale
until
the
system
failure
has
been
identified
and corrected.
(3)
Altitude I
oss
During
Malfunction:
a.
An
autopilot
malfunction during climb,
cruise
or
descent
with
a
3
second
delay
in
recovery
initiation
could
result
in
as
inuch
as
60°
of
bank
and
500
foot
altitude
loss Maximum
altitude
loss
was
recorded
at
180
KIAS during descent,
b. An
autopilot
malfunction
during
an
approach
(single
engine.
gear
down,
tlaps
up)
with
a
i
second
delay in
recovery
initiation
could
result
in
as
much
as
18° bank and
l20
foot
altitude
loss.
(4)
Single Engine Operations:
a.
Engine
failure during
approach operation: Disengage
autopilot. conduct remainder of
approach
manually.
b.
Engine failure during
climb, cruise
or
descent:
Retrim
aircraft.
perform
aircraft
engine
inoperative
procedures.
c.
Maintain
aircraft
Yaw
Trim
throughout all
single
engine
operations. either
by
aircraft
rudder trim
or
manual rudder
application.
(b)
COMPASS
SYSTEM
(t)
Emergency
Operation
with
Optional
NSD
360A(HSI)
Slaved
and
or
Non-Slaved:
a.
Appearance
of
HDG Flag:
1.
Check
air
supply
gauge
(vac
or
pressure)
for
adequate
air supply
(4.2
in.
Hg.
min.).
1 Check
compass
circuit
breaker.
1 Observe
display
for
proper
operation.
ISSUED:
FEBRUARY 10,
1984
REPORT:
VB-1110
|
3
of
20,
9-137
i