Piper SENECA III - Page 358

SECTION 9
PIPER
AIRCRAFT
CORPORATION
SUPPLEMENT 17
PA-34-220T,
SENECA
HI
SECTION
2
-
LIMITATIONS
(a)
Maximum
airspeed
for
autopilot
operation
is
180
KlAS.(Autopilot
VMo)
(b)
Autopilot
OFF
during
takeoff
and
landing.
(c)
Autopilot
coupled
approaches
prohibited
with
more
than
one
notch
(10°)
flap
extended.
SECTION
3
-
EMERGENCY
PROCEDURES
(a)
AUTOPILOT
In the
event
of
an
autopilot
malfunction,
or
anytime
the
autopilot
is
not
performing
as
commanded,
do
not
attempt
to
identify
the
problem.
Regain
control of the
aircraft by
overpowering
and
immediately
disconnecting
the
autopilot
by
depressing
the
AP
ON-OFF
switch
on
the
programmer
OFF,
or
by
pulling
the
autopilot
circuit
breaker.
Do
not
operate
until
the
system
failure
has
been
identified
and
corrected.
(1)
Altitude Loss
During
Malfunction:
a.
An
autopilot
malfunction
during
climb,
cruise
or
descent
with
a
3
second
delay
in
recovery
initiation could
result
in
as
much
as
60°
of
bank
and
300'
altitude
loss.
Maximum
altitude loss
was
recorded
at
180 KIAS
during descent
at
high
altitude.
b.
An
autopilot
malfunction
during
an
approach
with
a
I
second delay
in
recovery
initiation could
result
in
as
much
as
30°
bank
and 100'
altitude
loss.
Maximum
altitude loss
measured
with
one
notch
(10
degrees) flap,
gear
down,
and
operating
either
coupled
or
uncoupled,
single
or
multi-
engine.
(b)
COMPASS
SYSTEM
(1)
Emergency
Operation
with Optional
NSD
360A
(HSl)
Slaved
and/or
Non-Slaved:
NSD
360A
a.
Appearance
of
HDG Flag:
I
.
Check
air
supply
gauge
(vac
or
pressure)
for adequate
air
supply
(4
in.
Hg,
min.)
REPORT:
VB-1110
ISSUED:
APRIL
21,
1981
9-108,
2
of
6