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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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08/10/21

Message Overview:

Message Name:

NO R-MFD-2 BUS INPUT

Message Code:

B3-289476

Associated CAS:

None

Reporting LRU: IASC2 TST A
System Description: 21-61-00
Schematic Diagram: None
Wiring Diagram: None

Message Description:

IASC-2 channel A does not receive any data from the Right MFD.

Possible Causes:

  • Adaptive Flight Display - R Multi-Function Display (R MFD) (A28)
  • Integrated Air System Controller (IASC2) (A56)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Fault Confirmation Procedure:

  1. Message# = 16
  2. Fault Logged = AIR,TAXI
  3. Status = FAILED/WIRING
  4. Message Type = Fault Message
  5. {Term Definitions}

    1. IAS2A-90 XX 354 10 EXCT XXXX-XXXX XXXX-XXXT XXXX-XXXX 354A: 17; NO R-MFD-2 BUS INPUT
    2. MFD2-1 2X 350 NA ABSN XXXX-XXXX XXXX-XXXX XXXX-XXXX 350: (A) NO IOC 2X IN;

Quick Links:

Removal of the Integrated Air System (IAS) Controller AMM 21-31-01-000-801
Installation of the Integrated Air System (IAS) Controller AMM 21-31-01-400-801
Operational Test of the Integrated Air System (IAS) Controller AMM 21-31-01-710-801
Removal of the Adaptive Flight Display Unit AMM 31-61-01-000-801
Installation of the Adaptive Flight Display Unit AMM 31-61-01-400-801
Operational Test of the Electronic Flight Instrument System (EFIS) AMM 31-61-00-710-802
Standard Practices - Replace Wiring SPM 20-12-00-02
Standard Practices - Repair Wiring SPM 20-12-10-02

Troubleshooting Recommendations:

  1. IASC-2 channel A does not receive any data from the Right MFD. Suspect MFD or IASC2.

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