------------------------------------------------------------------------------NO | MISCELLANEOUS | TEST MODE | | | PUT | SET | IOT | -------+----------------------------------------------+-------+-------+------+ 1 | Oil level low | X | X | | 2 | Oil pressure low | | | X | 3 | Fuel pressure low | | | X | 4 | Oil heater | | | X | 5 | ECB main power supply | | | X | 6 | APU serial number encoder | X | | | 7 | Oil filter clogged | | | X |
R **ON A/C 001-003, 051-099, 401-499,
E. Display
**ON A/C 001-003, 051-062,
(Ref. Fig. 003, 004, 005, 006, 007)
R **ON A/C 063-099, 401-499,
(Ref. Fig. 008, 009, 010, 011, 012, 013, 014, 015, 016, 017, 018, 019)
**ON A/C 001-003, 051-062,
The MCDU shows the APU information in normal mode and menu mode through the CFDS.
F. Normal Mode During a normal mode the ECB continuously transmits all class 1 and 2 faults and messages to the CFDS. The MCDU display shows the faults and messages when the 'LAST LEG REPORT' is set. The Centralized Fault Display Interface Unit (CFDIU) makes the display on the MCDU in a normal mode.
CFDS System Report/Test - APU menu on the MCDU
Figure 003
CES
APU - Last Leg Report and APU - Previous Legs Report
Figure 004
CES
APU - LRU Identification, APU - Data/Oil and APU - Performance Settings
Figure 005
CES
APU - System Self Test
Figure 006
CES
APU - Shutdown and APU - Class 3 Faults
Figure 007
CES
APU - APU System Menu Figure 008
R EFF : 063-099, 401-499, Page 1949-73-00 Config-1 Aug 01/05
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APU - Menu Response to LAST LEG REPORT
Figure 009
CES
APU - Menu Response to PREVIOUS LEG REPORT
Figure 010
CES
APU - Menu Response to LRU IDENTIFICATION
Figure 011
CES
APU - Menu Response to GND SCANNING
Figure 012
CES
APU - Menu Response to TROUBLE SHOOTING DATA
Figure 013
CES
APU - Menu Response to LRU EVENT DATA
Figure 014
CES
APU - Menu Response to CLASS 3 FAULTS
Figure 015
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APU - Menu Response to TEST
Figure 016
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APU - Menu Response to SHUTDOWNS
Figure 017
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APU - Menu Response to SHUTDOWN EVENT
Figure 018
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APU - Menu Response to SERVICE DATA and Menu Response to APU DATA Figure 019
R EFF : 063-099, 401-499, 49-73-00Page 30 Config-1 Aug 01/05
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G. Menu Mode The menu mode is available on the MCDU display when the 'SYSTEM REPORT TEST' is set and an 'APU' selection is made. The MCDU display shows the related APU system data and the faults when a selection of the APU menu is made. The ECB makes the display on the MCDU in a menu mode. The APU menu includes the:
-LAST LEG REPORT,
-PREVIOUS LEG REPORT,
-LRU IDENTIFICATION,
-SYSTEM SELF TEST,
-APU DATA/OIL,
-PERFORMANCE SETTINGS,
-SHUT DOWNS,
-CLASS 3 FAULTS.
(1)
<LAST LEG REPORT> This gives the LRU failures (class 1 and 2) during the last flight leg, related to the system selection.
(2)
<PREVIOUS LEG REPORT> This gives all the LRU failures (class 1 and 2) for the previous flight legs, a maximum of 30 failures.
(3)
<LRU IDENTIFICATION>
This gives the part number of the ECB only.
(4)
<SYSTEM SELF TEST> This will start a self test and will show any LRU failures (not related to class of fault). When the test passes the message TEST OK is shown.
(5)
<APU DATA/OIL>
This gives:
-
the APU S/N....... :serial number,
-
the HOURS......... :operation hours,
-The CYCLES........ : start cycles,
-the OIL LEVEL....:OK or LOW
(6)
Not Applicable
(7)
<PERFORMANCE SETTINGS>
This gives the settings of:
-EGT
-COOL DOWN
-ECS LEVEL
(8)
Not Applicable
(9)
<SHUT DOWNS> This gives the cause of the shutdown and the related class 1 LRUs. A list of the shutdown faults and texts of the possible causes is shown in Tables 5.
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