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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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For AOG assistance contact:

CRC Montreal (YUL)
Quick Links

12/31/21

Message Overview:

Message Name:

ISI FLAGS

Identifier: 341OBS010
Effectivity: AIRCRAFT 20501 - 20999
System: Navigation
Associated CAS: None
System Description: 34-17-00
Schematic Diagram: None
Wiring Diagram: 34-13-05
34-13-09

Message Description:

The Integrated Standby Instrument (ISI) displays an applicable warning flag when a fail condition occurs in one of the ISI functions.

Possible Causes:

  • None

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

 NOTE: Warning flags will display RED for the following ISI functions. 

  • ALT
  • ATT
  • G/S
  • IAS
  • ILS
  • LOC
  • SSEC
    isi warning flags

Quick Links:

Removal of the Integrated Standby Instrument AMM 34-12-01-000-801
Installation of the Integrated Standby Instrument AMM 34-12-01-400-801
Functional Test of the Integrated Standby Instrument AMM 34-12-01-720-801
Wiring - Maintenance Practices - ALL SPM 20-12-00-02
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02
Electrical Connectors - Maintenance Practice - ALL SPM 20-20-00-02

Troubleshooting Recommendations:

  1. Select the red Integrated Standby Instrument (ISI) warning flag: 'ALT', 'ATT', 'G/S', 'IAS', 'ILS', 'LOC', or 'SSEC' below.

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