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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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02/26/21

Message Overview:

Message Name:

L AOA RSLVR 1&2 DISAGREE
(Service Message)

Message Code:

B3-007012

Associated CAS:

None

Reporting LRU: L AOA SENSOR
System Description: 27-00-00
Schematic Diagram: None
Wiring Diagram: None

Message Description:

Resolver 1 and 2 disagree in the left AOA.

Possible Causes:

  • Angle-Of-Attack Sensor (LH) (A141)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Fault Confirmation Procedure:

  1. ATA Chapter = 27-35
  2. Message# = 3
  3. Comp Id = A141
  4. Fault Logged = AIR, TAXI
  5. Status = LRU OK / INFO
  6. {Term Definitions}

    1. SPC-70 XX 355 00 EXCT XXXX-XXXX XXTX-XXXX XXXX-XXXX 355A: 22; L AOA RESOLVER 1&2 DISAG

Quick Links:

Functional Test of the Stall Protection System AMM 27-32-00-720-801
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 Angle-of-Attack Sensor AMM 27-32-09-000-801
Installation of the Angle-of-Attack Sensor AMM 27-32-09-400-801
Functional Test of the Angle-of-Attack Sensor AMM 27-32-09-720-801
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. Resolver 1 and 2 disagree in the left AOA.

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