SWACOM TRAINING GUIDE
FAULT DATA
The FAULT DATA display supplies information about the fault code selected. Specific information regarding the fault is displayed in line 1 thru 5 of the data field on the MCDU.
Line 1L can display the following
-Hexadecimal code for the fault
-Optional data associated with the fault if available
-(Line 1R) Toggle status of the fault, either BAD or GOOD
Toggle status is typically used to annunciate intermittent faults. For instance, activity status is an example of a fault with toggle status. It is considered a fault if a monitored LRU does not provide input over a certain period of time. To ensure that when activity is detected after an activity failure fault was logged, another entry is made in the fault log using the same fault code and fault description, but the toggle status is changed to GOOD. Some faults do not have toggle status. When the fault does not have a toggle status, the field is left blank.
Line 2L displays the first line of the fault description.
Line 3L displays the second line of the fault description. This line is blank when the fault description is only one line.
Line 4L displays the time and date at which the fault was detected, and also in Line 4R, the time since power-on (TSPOC) in minutes, since the fault occurred.
Line 5L displays the OOOI state during which the fault was detected, and in Line 5R, the number of times (Count) the fault has occurred in the flight leg being viewed,
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SOUTHWEST AIRLINES.
SWACOM TRAINING GUIDE
ACARS BITE - FAULT LOG
NOTE: To return to the CURRENT LEG page, select <RETURN (LSK 6L).
PREV LEG Display
The PREV LEG display supplies access to the fault history of the CMU for a particular leg of flight. This display is only accessible when previous flight legs with faults exist. Use the LSK’s to access the specific PREV LEG.
The format for the fault information will be as previous described for the CURRENT LEG page. You can also access the FAULT DATA page for a specific fault on that flight by selecting the individual fault using the LSK keys. The FAULT DATA page format will be as previously described.
December 1, 2004
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SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
SOUTHWEST AIRLINES.
SWACOM TRAINING GUIDE
LSK 3L
LSK 1L
LSK 6L
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ACARS BITE - FAULT LOG
