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(WARNING)
RED MESSAGE (CAUTION)
AMBER MESSAGE (ADVISORY)
CYAN MESSAGE (STATUS)
WHITE MESSAGE Require immediate crew attention. These messages are accompanied by flashing master warning, triple chime attenson with or without voice message or dedicated tone. Require immediate crew awareness and future crew action may be required in the form of alternate system selection or performance limitation. These message are accompanied by flashing master caution and a single chime. Indicate safe or normal system operation which require crew awareness, over and above the dark cockpit philosophy. Indicate minor failures or reduction in systems capability, which require no crew action.

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Quick Links

07/01/19

Message Overview:

Fault Message:

SPDA 4 FAILED (LEVEL A)

Fault Code:

2462805SPD

Associated CAS:

ELEC SYS FAIL
(Caution)

Reporting LRU: Secondary Power Distribution Assembly (SPDA) 4
System Description: 24-60-00
Schematic Diagram: 24-62-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 24-62-04 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

The Secondary Power Distribution Assembly (SPDA) 4 has detected an internal failure related to the Supervisor Card (incorrect Microprocessors data exchange, Microprocessor swap test not performed successfully or address/databus is corrupted) and/or the DC Power Module Card.

Possible Causes:

  • Secondary Power Distribution Assembly (SPDA) 4 (A16)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Connect Electrical Power to the Aircraft AMM 24-00-00-861-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Remove the Electrical Power from the Aircraft AMM 24-00-00-861-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Secondary-Power Distribution Assemblies AMM 24-62-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Secondary-Power Distribution Assemblies AMM 24-62-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Perform a complete Aircraft power reset (EXT AC AVAIL light is OFF). Is the fault still present?

    1. If NO, do close out.
    2. If YES, continue with next step.

  2. Access the EMS CDU Signboard menu as follows:

    1. Push the SYSTEM - CNTL key
    2. Push the lower left Line Select Key (LSK)
    3. Push the lower right LSK
    4. Select "SPDA 4 IN"
    5. Record labels 353 to 356 in the table below:

      Left Column Center Column
      29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14
      Label 353
      Label 354
      Label 355
      Label 356

  3. Based on the labels and bits recorded previously (Bit(s) set to "1" only), swap SPDA 4 with the corresponding position marked with an "X" in the table below. By doing so, there is a chance that the ELEC SYS FAIL CAS message will become ELEC SYS FAULT instead.

    1. If YES, replace SPDA 4 and do close out.
    2. If NO, continue with next step.

      Bit(s) set to "1" SPDA 1 SPDA 2 SPDA 3 SPDA 4
      Label 353 Bit 28 X
      Label 354 Bit 16-15 X
      Label 355 Bit 29-28-27 X
      Label 356 Bit 21-20-19 X
      Label 356 Bit 29-28-27-25-24-23 X

  4. Is the ELEC SYS FAIL CAS message posted? (the associated CAIMS message should reflect the new position of the failed SPDA).

    1. If YES, go to step 7.
    2. If NO, continue with next step.

  5. Is the ELEC SYS FAULT CAS message posted?

    1. If NO, do close out.
    2. If YES, continue with next step.

  6. If dispatch is required, ensure that the ELEC SYS FAULT CAS message is related to the new position of SPDA 4. Is dispatch required?

    1. If YES, apply DDG conditions to allow dispatch and do close out.
    2. If NO, continue with next step.

  7. Replace SPDA 4.
  8. Do close out.

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