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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

01/28/21

Message Overview:

TAWS FLAPS OFF
(Status)

DDG Reference: None
Pilot Action (QRH): AVNC 02-40
System Description: 34-42-00
Schematic Diagram: 34-42-00
Wiring Diagram: 34-42-01
34-42-09

Message Description:

The white 'TAWS FLAPS OFF' status CAS message indicates the flap warning function of the terrain awareness warning system has been selected off.

  • The flap selection is controlled by a PBA on the pedestal and is used in abnormal flap landing configurations. More info is covered in the TAWS system.

Possible Causes:

  • Flap Warning of the Terrain Awareness Warning System (TAWS) selected OFF

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Terrain-Avoidance Warning System (TAWS) Computer AMM 34-42-01-000-801
Installation of the Terrain-Avoidance Warning System (TAWS) Computer AMM 34-42-01-400-801
Removal of the Terrain-Avoidance Warning System (TAWS) Computer AMM 34-42-01-000-802
Installation of the Terrain-Avoidance Warning System (TAWS) Computer AMM 34-42-01-400-802
Operational Test of the Terrain-Avoidance Warning System (TAWS) Computer AMM 34-42-01-710-801
Operational Test of the Terrain-Avoidance Warning System (TAWS) Computer AMM 34-42-01-710-802
Removal of the Terrain-Avoidance Warning System (TAWS) Configuration Module AMM 34-42-03-000-801
Installation of the Terrain-Avoidance Warning System (TAWS) Configuration Module AMM 34-42-03-400-801
Removal of the TAWS/LANDING GEAR Control-Panel AMM 34-42-09-000-801
Installation of the TAWS/LANDING GEAR Control-Panel AMM 34-42-09-400-801
Operational Test of the TAWS/LANDING GEAR Control-Panel AMM 34-42-09-710-801
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:

Verify the flap switch for proper operation.

  • With the flap off Switch SD S49 pressed in, a ground is supplied to the A34P1 pin 18 for the computer to inhibit flap information. The switch in the normally open, or "ON" position should remove the ground on pin 18 and enable the flap configurations to be called out.

42_taws_control_panel

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