R **ON A/C 401-499,
R ----------------------------------------------------------------------------
R | BIT | DEFINITION |
R |--------------------------------------------------------------------------|
R | 1 | 1 -|
R | 2 | 1 | |
R | 3 | 1 | |
R | 4 | 0 | LABEL 350 |
R | 5 | 1 | |
R | 6 | 0 | |
R | 7 | 0 | |
R | 8 | 0 -|
R |--------------------------------------------------------------------------|
R | 9 | SDI - LSB |
R | 10 | SDI - MSB |
R |--------------------------------------------------------------------------|
R | 11 TO 14 | SPARE |
R |----------|---------------------------------------------------------------|
R | 15 | TIME UNTIL NAV LEAST |
R | 16 | TIME UNTIL NAV SIGNIFICANT |
R | 17 | TIME UNTIL NAV DIGIT |
R | 18 | TIME UNTIL NAV (BCD) |
R |----------|---------------------------------------------------------------|
R | 19 | TIME UNTIL NAV MOST |
R | 20 | TIME UNTIL NAV SIGNIFICANT |
R | 21 | TIME UNTIL NAV DIGIT |
R | 22 | TIME UNTIL NAV (BCD) |
R |----------|---------------------------------------------------------------|
R | 23 | Action Code (1) Least |
R | 24 | Action Code (1) Significant |
R | 25 | Action Code (1) Digit |
R | 26 | Action Code (1) |
R |----------|---------------------------------------------------------------|
R | 27 | Action Code (1) Most |
R | 28 | Action Code (1) Significant |
R | 29 | Action Code (1) Digit |
R |----------|---------------------------------------------------------------|
R | 30 | SSM |
R | 31 | SSM |
R | 32 | Parity |
R ----------------------------------------------------------------------------
R Digital Word 350 (Action Code)
R NOTE : (1) The action codes corresponding to the maintenance messages____
R are listed in the following table.
R 1EFF : 401-499, 1 34-14-00Page 65 1 1 Config-3 Aug 01/05 1 1 1CES 1
R ---------------------------------------------------------------------------
R | ACTION CODE | MAINTENANCE MESSAGE | DESCRIPTION |
R |-------------|---------------------|-------------------------------------|
R | 01 | IR FAULT | Critical failure; Remove ADIRU for |
R | | | maintenance |
R | 02 | DELAYED MAINT | Non-Critical failure; Service ADIRU |
R | | | when convenient |
R | 03 | ENTER PPOS | Enter present position |
R | 04 | SELECT ATT | Hard failure; Select ATTITUDE MODE |
R | 05 | EXCESS MOTION | Excess motion detected during ALIGN |
R | 06 | SWITCH ADR | Air Data Reference invalid |
R | 07 | CHK C/B | Check circuit breakers |
R | 08 | CDU FAULT | Remove CDU for maintenance |
R | 09 | ENTER HEADING | Enter heading for ATTITUDE MODE |
R | 10 | | Unassigned TBD |
R ----------------------------------------------------------------------------
R Action Code - Maintenance Messages
R (Ref. Fig. 005, 006, 008)
R -------------------------------------------------------------------------------
R | BIT No.| FUNCTION |
R |--------|--------------------------------------------------------------------|
R | 9 | SDI |
R | 10 | SDI |
R | 11 | MSB OF SATELLITES VISIBLE (16) |
R | 12 | DADS STATUS Present = 0 Not present = 1 |
R | 13 | DADS SOURCE Primary = 0 Secondary = 1 |
R | 14 | IRS/FMS STATUS Present = 0 Not present = 1 |
R | 15 | IRS/FMS SOURCE Primary = 0 Secondary = 1 |
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