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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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06/22/19

Message Overview:

Fault Message:

AOA #1/AOA #2/WRG/SPC CH B

Fault Code:

2731203STL

Associated CAS:

STALL PROTECT FAIL
(Caution)

Reporting LRU: Stall Protection Computer (SPC)
System Description: 27-32-00
Schematic Diagram: 27-32-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 27-32-03 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

When one or more of the following occurs:

  • The Stall Protection Computer (SPC) Channel B does not receive data from the Angle-of-Attack (AOA) Sensor 2
  • The data from AOA Sensor 1 received by SPC Channel A does not agree with the data from AOA sensor 2 received by SPC Channel B
    • OR,
  • The data from the Angle-of-Attack Sensors received by one of the SPC channels is not correct
    NOTE: When a single AOA Sensor and signal is specified without the combination "AOA #1/AOA #2/WRG/SPC CH X", then the SPC senses that the specified AOA has a failure but can operate on the remaining functional resolver signal.

Possible Causes:

  • Angle-of-Attack (AOA) Sensor 1 (MT136)
  • Angle-of-Attack (AOA) Sensor 2 (MT137)
  • Stall Protection Computer (SPC) (A40)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

  • AW700-27-0363 - No Fault Found initiative: Stall Protection Computer

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Stall Protection Computer AMM 27-32-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Stall Protection Computer AMM 27-32-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Angle-of-Attack Sensor AMM 27-32-09-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Angle-of-Attack Sensor AMM 27-32-09-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Perform wiring checks between AOAs and SPC.

    1. If wiring checks are not good, repair defective wiring as required and do close out.
    2. If wiring checks are good, continue with next step.

  2. Replace AOA 1.

    1. If system checks are good, do close out.
    2. If fault remains, continue with next step.

  3. Replace AOA 2.

    1. If system checks are good, do close out.
    2. If fault remains, continue with next step.

  4. Replace Stall Protection Computer (SPC).
  5. Do close out.

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