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SAT OPT [5L] - This key alternately selects and deselects the AFIS
Satellite Option (ON/OFF).
NOTE: The SAT OPT line select key will select or deselect even
when the option is not active. Verify that the AFIS
SATCOM option is available before attempting selection.
ARINC [1L] - This key alternately selects and deselects the ARINC
VHF Network Option (AUTO/OFF).
SITA [2L] - This key alternately selects and deselects the
SITA/AVICOM VHF Network Option (AUTO/OFF).
AIR CAN [3L] - This key alternately selects and deselects the AIR
CANADA VHF Network Option (AUTO/OFF).
Messages
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TABLE OF CONTENTS
INTRODUCTION .............................................................................. 1
MSG KEY ......................................................................................... 1
SYSTEM MESSAGES...................................................................... 1
Messages
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INTRODUCTION
This section contains the FMS system messages. Each message
the system is capable of displaying is detailed below, including any
action(s) which may be necessary by the crew to correct the
abnormality. A box around the procedures following the message
definition indicates crew action. No action is specified for messages
that are of an advisory nature only.
MSG KEY
If the Position Uncertain message is active, "POS" will be displayed
on the far left side of the top line on the CRT display. When a new
system message becomes active, "MSG" will appear on the far right
side of the top line on the CRT display. Pressing the MSG key will
cause the MESSAGE page to be displayed showing the active
messages. The current messages (those messages generated
since the page was last accessed) will be displayed at the top of the
list. After the messages are viewed, the CRT display may be
returned to the previous page by selecting the RETURN option on
the MESSAGE page or by pressing either the MSG or BACK keys.
SYSTEM MESSAGES
The system messages are presented in alphabetical order on the
following pages. Messages specifying the sensor number (IRS1,
IRS2, IRS3, OSS1, and OSS2) are listed below with the number
symbol (#) in place of the sensor number. However, the sensor
number is used in the actual message. All messages are
suppressed for the first thirty seconds after takeoff in order to
minimize distractions to the pilot.
Messages
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A/D CODE # - The A/D (Analog/Digital Board) self test failed during
self test. "#" is the error code from 1 to 9. This message will only
come on following system initialization. Heading and fuel flow inputs
may be affected and should be checked if the system must be used.
Codes are as follows:
1 - A/D Program Checksum Fail
2 - +15 VDC Self test Fail
3 - -15 VDC Self test Fail
9 - No Communication between A/D board and FMS
A/D HEADING FAIL - The present system heading source, A/D
(synchro analog-to-digital), was serving as the primary heading
source but has failed. This message will be removed after it is
displayed. Unless a NO HEADING message is also active, the
system will have automatically selected another valid heading
source. No action is necessary if another valid heading was
selected. A check should be made on the appropriate DATA page to
ensure that the heading source selected is the one desired and the
heading is correct. This message is suppressed while the aircraft is
on the ground.
1. Check heading source on Data 4/4.
2. Place cursor over the HDG field.
3. Press the LIST key to access a display of alternate heading
sources.
4. Select an alternate heading source.
5. A manual heading can be entered at the HDG field on DATA
page 4/4.
ABNORMAL CKLIST DB FAIL - Appears if the abnormal checklist
database has failed (only with Collins Pro Line 4 interface).
1. Reload checklist database.
ADC ALT REQD FOR APRCH - An approach has been attempted,
but XFILL or MAN altitude is being used by the system.
ADC ALT REQD FOR VNAV - A VNAV problem has been entered,
but XFILL or MAN altitude is being used by the system.
Messages
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ADC INPUT FAIL - An Air Data Computer (ADC) failure is detected.
Manual entries of TAS and altitude may be made on ADC 1/1.
1. Check circuit breaker for ADC or ACU if installed.
2. Press the DATA key until DATA 2/4 is accessed.
3. Press the line select key at ADC to access ADC 1/1.
4. At the TAS field, enter current true airspeed. A manual TAS
overrides any ADC input.
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