Autoland Status Annunciators
Push/Reset (P/RST) Switch
PUSH - resets both pilots annunciators as follows:
- Before APP mode selected
- changes NO AUTOLAND or NO LAND 3 to blank. If condition still exists when switch released, annunciation returns.
- if NO AUTOLAND displayed, remains displayed until autopilots disengaged.
- After APP mode selected
- if NO LAND 3 displayed, becomes blank. Remains blank until after landing and autopilots disengaged.
- if NO AUTOLAND displayed, remains displayed until autopilots disengaged.
Autoland Status Annunciator (upper-green)
(blank) - Normal
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- indicates all 3 autopilot systems, with their airplane system inputs, are operating normally.
- appears below 1500 ft radio altitude with LOC and G/S captured.
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- indicates a minimum of 2 autopilot systems, with their airplane system inputs, are operating normally.
- appears below 1500 ft radio altitude with LOC and G/S captured.
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Autoland Status Annunciator (lower-amber)
(blank) - Normal
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- indicates fault conditions exist which preclude the use of the autopilots for an automatic landing.
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- indicate a fault condition exist which results in a LAND 2 annunciation.
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Test Switch
(push to test) Provides a test of the ASA display:
Test 1
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Test 2
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