SECTION 3
El\t
l
E
R
GENCY PROCEDURES
PA-28-181, ARCHER Ill
3.Se
Avionics System Failures (continued)
Autopilot or ESP Malfunctions
Indication: An unexpected roll or pitch deviation from the desired
flight path, possible flight director command deviations
from desired aircraft attitudes and possible autopilot
disconnect with red AFCS annunciation, amber or red
A/P annunciation on PFD.
WA
R
N
I
NG
Do not press the L VL switch if an autopilot or
pitch trim malfunction is suspected.
NOTE
Autopilot malfunctions also include AFCS
enhanced features such as Underspced Protection,
Level Mode, and Coupled Go-Around.
I
NOTE
I
Electronic Stability Protection (ESP) will be
inoperative following an autopilot failure.
Control Wheel ................................................................. GRASP FIR\1LY
Allitude Indicators .............................................................. CROSSCHECK
A/P DISC Switch ..................................................... DEPRESS and HOLD
Pitch Trim ................................................................ RETRIM as necessary
AUTOPILOT Circuit Breaker (Row 3, Col. 2) ................................. PULL
Autopilot ............................................................... DO NOT RE-ENGAGE
Automatic Autopilot Disconnect
Indication: Flashing red and white A/Pon PFD and aural disconnect
tone
A/P DISC Switch .............................................. DEPRESS and RELEASE
(cancels disconnect lone, and disconnects Autopilot)
Pitch Trim .......................................... ............. ....... RETRIM as necessary
I
NOTE
I
The autopilot disconnect may be accompanied
by a red boxed PTCH (pitch), ROLL, or PTRM
annunciation on the PFD, indicating the axis which
has failed. The autopilot cannot be re-engaged
with any of these annunciations present.
REPORT: VB-2749
3-32
ISSUED: December 22, 2017
REVI SED: July 31, 2018
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