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CSDEU 1 M
D AINT/BITE MAIN MENU 1/1 <CURRENT STATUS
<INFLIGHT FAULTS
<GROUND TESTS
<IDENT/CONFIG
<INPUT MONITORING DISCRETE STATUS <INDEX
MAINTENANCE
TOTAL NUMBER OF
MESSAGE NUMBER
CURRENT STATUS FAULT DESCRIPTION CSDEU 1 M
D AINT/BITE
CURRENT STATUS 1/1
NO FAULTS
OR
SUSPECTED LRU(S)
<INDEX
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CDS - TRAINING INFORMATION POINT - CDU CDS BITE PAGES - CURRENT STATUS
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737-600/700/800/900 TRAINING MANUAL CDS -- TRAINING INFORMATION POINT - CDU CDS BITE PAGES - INFLIGHT FAULTS
General
To do a check of the inflight faults, select INFLIGHT FAULTS on line select key (LSK) 2L from the CDS MAIN MENU. This shows the INFLIGHT FAULTS Leg Menu page.
The DEU stores faults for 64 flight legs. The DEU can store up to 32 faults for each flight leg.
A new flight leg starts when the airplane has an airspeed of more than 80 knots. The flight leg ends when the airspeed is less than 75 knots. If a fault occurs on the ground with engines off, the DEU shows the fault as a current fault in CURRENT STATUS. If the fault exists when a new flight leg starts, the DEU stores the fault in the new flight leg.
INFLIGHT FAULTS Leg Menu Page
The INFLIGHT FAULTS leg menu page shows a list of the flight legs that have faults in the DEU memory. The number of inflight faults for the flight leg shows next to the flight leg number. The time the flight leg started shows under the flight leg.
To show the faults for a flight leg, select the LSK next to the flight leg. This shows the first fault in that flight leg. Leg 01 is the most current flight leg.
INFLIGHT FAULTS Fault Page
A single fault shows on a page. The number of inflight faults for this flight leg shows on the top of the page. The number of pages is the number of inflight faults for this flight leg.
This information shows for a single fault:
-Maintenance message number -If the fault was intermittent -Fault description -Suspected LRUs -Flight number
- Date of fault
- Time of fault
- Altitude the fault occurred
-Airspeed the fault occurred.
The maintenance message number is a number assigned to this fault. You can use the maintenance message number index in the fault isolation manual (FIM) to find the correct fault isolation procedure to fix the fault.
If the fault occurs more than once during the flight leg, you see the word INTERMITTENT near the top of the CDU page.
The fault description is a short description of the fault.
The suspected LRUs are in the order of most likely to least likely LRUs that made the fault occur. You should use this information with the fault isolation manual to fix the fault.
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737-600/700/800/900 TRAINING MANUAL CDS -- TRAINING INFORMATION POINT - CDU CDS BITE PAGES - INFLIGHT FAULTS The flight number is the flight number that the pilot
put in the FMC CDU for that flight.
The time of the fault is when the fault occurred. If the fault was intermittent in the flight leg, the time is the first time the fault occurred.
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CDS - TRAINING INFORMATION POINT - CDU CDS BITE PAGES - INFLIGHT FAULTS
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737-600/700/800/900 TRAINING MANUAL CDS -- TRAINING INFORMATION POINT - CDU CDS BITE PAGES - INFLIGHT FAULTS BULK ERASE General
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