Piper ARCHER II - AUTOPILOT FAILURE; ABNORMAL DISCONNECT; PITCH TRIM FAILURE; ESP ACTIVATION

AUTOPILOT
FAILURE
/
ABNORMAL
DISCONNECT
(Red
AP
in
autopilot
status
box
on
display,
continuous
aural
disconnect
tone.)
1.
AP
DISC
/
TRIM
INT
Button
or
G5
Knob
or
G3X
Autopilot
Status
Bar.......
PRESS
AND
RELEASE
(to cancel disconnect tone)
.
MAINTAIN
/
REGAIN
AIRCRAFT
CONTROL
NOTE
The
autopilot
disconnect
may
be
accompanied
by
a
red
AFCS
in
the
autopilot
status
box,
indicating
the
automatic
flight
control
system
has
failed.
The
flight
director
will
not be
available
and
the
autopilot
cannot
be
re-engaged
with
this
annunciation
present.
2.
Aircraft
Atlilude
If
the
disconnect
is
accompanied
by
an
amber
AP
with
a
red
X,
the
autopilot
will
not
be
available
however
the
flight
director
still
be
functional.
In
the
event
of
a
GMC
failure,
pressing
the
G5
knob
or
G3X
Autopilot
status
bar
will
acknowledge
the
disconnect
tone.
PITCH
TRIM
FAILURE
(Red
PTRIM
on
G5
or
G3X
display.)
This
failure
will
only
occur
if
the
optional
pitch
trim
servo
is
installed.
1.
Indicates
a
failure
of
the
pitch
trim
servo,
2.
COMUOL
Wheel
ose
ceccssesctseresescesstsssensssenensenstsneucnentereseosessensecaccosssesseneetensereeasataeanes
GRIP
FIRMLY
3.
AP
DISC
/
TRIM
INT
Button...
ceeeeseneetsesesrenssneessetensestsenensscnueeee
PRESS
and
RELEASE
(Be
prepared
for
high
elevator
control
forces)
4.
Elevator
THM...
see
pescsssgeceececneeneenneevenserneacetenss
AS
REQUIRED
USING
ELEVATOR
TAB
WHEEL
NOTE
The
autopilot
may
be
re-engaged.
Refer
to
the
normal
procedures
section
of
this
AFMS,
MANUAL
PITCH
TRIM
WITH
AUTOPILOT
ENGAGED,
ESP
ACTIVATION
1.
Power.
AS
REQUIRED
2.
Aircraft
Attitude.............
sete
reonenentenecsrnineses
MAINTAIN
/
REGAIN
AIRCRAFT
CONTROL
NOTE
lf
ESP
is
active
for
approximately
10
seconds,
the
aulopilot
will
automatically
engage
in
LVL
mode,
an
aural
‘ENGAGING
AUTOPILOT’
will
be
played,
(or
a
Sonalert
tone
will
sound
for
installations
without
a
supported
audio
panel)
and
the
autopilot
will
roll
the
wings
level
and
fly
al
zero-vertical
speed.
Refer
to
Section
7,
System
Description
for
further
information.
ESP
will
be
disabled
by
pressing
and
holding
the
AP
DISC
/
TRIM
INT
button.
Releasing
the
button
will
allow
ESP
to
function
AFMS
—-
GFC
500
Autopilot
in
Piper
PA-28
Series
190-02291-07
Rev.
5
Page
3-2