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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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01/26/21

Message Overview:

L STALL SHAKER FAIL
(Advisory)

DDG Reference: None
Pilot Action (QRH): FCTL 07-22
System Description: 27-32-00
Schematic Diagram: 27-32-00
Wiring Diagram: 27-32-05

Message Description:

The left Stall Shaker is reported failed by the Stall Protection Computer.

Possible Causes:

  • Left Stick Shaker
  • Left Angle-of-Attack Sensor
  • Stall Protection Computer (SPC) (A178)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Stall Protection Computer AMM 27-32-01-000-801
Installation of the Stall Protection Computer AMM 27-32-01-400-801
Removal of the Stick Shaker AMM 27-32-05-000-801
Installation of the Stick Shaker AMM 27-32-05-400-801
Removal of the Angle-of-Attack Sensor AMM 27-32-09-000-801
Installation of the Angle-of-Attack Sensor AMM 27-32-09-400-801
Standard Practices - Wire Repair SPM 20-12-10-02

Troubleshooting Recommendations:

  1. Check in the MDC in the current faults and fault history pages for problems related to Stall Protection System.

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