Piper Turbo Saratoga PA-32-301T Pilot's Manual page 322

SECTION
9 PIPER AIRCRAFT CORPORATION
SUPPLEMENTS PA-32-301T, TURBO SARATOGA
Figure 7-3
(cont)
5. TRIM WARNING LIGHT (TRIM)
-
Illuminates continuously
whenever trim
power
is
not on or
the
system
has not been preflight
tested.
Flashes and is accompanied by an audible warning whenever
a manual trim fault is detected. The TRIM warning light will
illuminate steady and be accompanied by a steady audible
tone
whenever an autotrim failure occurs. The autotrim
system
is
moni-
tored for
the following failures: trim servo running
without
a
command;
trim servo not running when commanded
to
run;
trim
servo running
in
the wrong direction.
The trim
power
switch may be
cycled off to
silence
the continuous tone but the trim fail light will
remain on. The manual electric trim
may
be used but the autopilot
should
not
be engaged.
6. AUTOPILOT ANNUNCIATOR (AP)
-
Illuminates
continuously
whenever
the
autopilot
is engaged. Flashes approximately 12 times
whenever the
autopilot is disengaged
(an
aural alert will
also sound
for 2
seconds).
7.
AUTOPILOT
ENGAGE
(AP ENG) BUTTON
-
When pushed,
engages autopilot
if
all
logic
conditions
are met.
8.
PREFLIGHT TEST (TEST) BUTTON
-
When
momentarily
pushed, initiates
preflight
test
sequence which automatically
turns
on all annunciator
lights,
tests the
roll and pitch rate monitors,
tests
the
autotrim fault
monitor,
checks the
manual
trim
drive voltage
and
tests
all autopilot valid and dump logic. If
the
preflight
is
successfully passed, the
AP annunciator light will flash for approxi-
mately 6 seconds
(an
aural
tone
will also sound simultaneously with
the
annunciator flashes).
The autopilot cannot be engaged until
the
preflight
test
is
successfully
passed.
9. BACK COURSE
APPROACH (BC)
MODE SELECTOR
BUTTON
-
When pushed,
will select
the Back Course Approach
mode.
This mode
functions identically to the
approach mode
except
that
response
to LOC
signals
is reversed.
Glide slope coupling is
inhibited in the Back Course
Approach mode.
10. APPROACH
(APR) MODE
SELECTOR
BUTTON
-
When
pushed,
will select
the
Approach mode. This mode provides all
angle
intercept (with
HSI) or a fixed angle intercept
of 45°
(with
DG),
automatic beam capture
and tracking
of VOR, RNAV or
LOC
signals plus glide slope
coupling in the case
of
an
ILS. The
tracking gain of the APR
mode is
greater
than the
gain in the NAV
mode. The
APR annunciator will flash until
the
automatic
capture
sequence
is initiated.
REPORT: VB-1070
ISSUED: AUGUST 6, 1982
9-98