S-TEC ST 360 ALT, Руководство по эксплуатации для пилотов

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3-8 2nd Ed. Jan 15, 08
S–TEC
3.1.7 Loss of Encoded Altitude
Should the encoded altitude at the input of the Selector / Alerter ever be lost
(i.e., interrupted), then a two-tone audible alert will sound 3 times, while the
displayed altitude is replaced by flashing dashes as shown in Fig. 3-1.
Thereafter, these dashes stop flashing but remain.
In that event, the selected altitude is no longer attainable using the Selector /
Alerter. In addition, if the Selector / Alerter happens to have vertical speed
command authority as indicated on its display, then immediately press the MAN
switch to revert such authority back to the autopilot.
Should the encoded altitude be subsequently restored, then the dashes will be
replaced by the displayed altitude. The Selector / Alerter can then be re-programmed
for use.
Fig. 3-1. Selector / Alerter Display, Loss of Encoded Altitude
3.1.8 Selector / Alerter Disconnect
If a Selector / Alerter malfunction is suspected, then set the ALT Alerter Master
Switch to the OFF position. Do not attempt further use of the Selector / Alerter,
until it has been inspected by authorized service personnel. A Selector / Alerter
malfunction will not likely cause an autopilot failure.