Piper PA-28-161 Pilot Operating Handbook page 243

SECTION 9
SUPPLEMENT 7
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7
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PIPER AIRCRAFT CORPORATION
PA-28-161, WARRIOR II
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5
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10
KI 525A HORIZONTAL SITUATION INDICATOR
Figure 7-9
I.
Kl 525A HORIZONTAL SITUATION INDICATOR (HSI) -
Provides a pictorial presentation of aircraft deviation relative to
YOR radials or localizer beams. It also displays glide slope devia-
tions and gives heading reference with respect to magnetic north.
2. NAY FLAG - Flag is in view when the NAY receiver signal is
inadequate. When aNA Y flag is present in the navigation indicator
(CDI or KI 525A) the autopilot operation is not affected. The pilot
must monitor the navigation indicators for NAY flags to insure that
the Autopilot and/ or Flight Director are tracking valid navigation
information.
3.
LUBBER LINE- Indicates aircraft magnetic heading on compass
card (10).
4. HEADING WARNING FLAG (HOG)- When flag is in view, the
heading display is invalid. If a HDG flag appears and a lateral mode
(HOG, NAY, APR or APR BC) is selected, the Autopilot will be
disengaged. The Autopilot may be re-engaged in the basic wings
level mode along with any vertical mode. The CWS switch would be
used to maneuver the aircraft laterally.
REPORT: VB-1180
ISSUED: AUGUST 13, 1982
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