Piper Malibu PA-46-310P Pilot Operating Handbook page 354

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BENDIX/KING
SBCTION·6
SYSTEM DESCRIPTION AND OPERATION
6.
AUTOPILOT (AP) ANNUNCIATOR 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 - Vhen pushed, engages
autopilot if all logic conditions are met. Also engages the
Yaw Damper if installed. If the Yaw Damper is installed
without the Yaw Damper Switch option, Yaw Damper operation
without the autopilot may be accomplished by first engaging
the autopilot (and Yaw Damper) and then disengaging the
autopilot by depressing the AP ENG button a second time.
The Yaw damper will remain engaged. Momentary activation of
manual electric trim also vill disengage the autopilot
leaving the Yav Damper engaged.
8.
PREFLIGHT TEST (TEST) BUTTON - Vhen 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 approximately 6 seconds
(an aural tone vill also sound simultaneously vith the
annunciator flashes). The autopilot can not be engaged
until the autopilot preflight tests are successfully
passed.
9. BACK COURSE APPROACH (BC) MODE SELECTOR BUTTON - Vhen
pushed vill select the Back Course Approach mode. This
mode functions identically to the approach mode except that
response to LOC signals is reversed. Glideslope coupling
is inhibited in the Back Course Approach mode •
FAA Approved
Revision 4
FIGURE 1 KING KAP 150 AUTOPILOT SYSTEM
CONTROLS AND INDICATORS
Piper Models PA-46-310P and PA-46-350P
Airplane Plight Manual Supplement
006-0428-01
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