An A320 crew reported a brake and steering control unit (bscu) failure while taxiing for takeoff. Th...

Attributes
ACN	1403921
Time
Date	201611
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Component
Aircraft Component	Nosewheel Steering
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Ground Event / Encounter Loss Of Aircraft Control

Narrative:

Pushed off gate with normal indications. Taxi to runway 36. ECAM brakes and nosewheel steering inoperative. Reset nose wheel steering; all indications normal. Continued taxi to 36. ECAM brakes and nosewheel steering became inoperative again; unable to brake or steer. Switched nose wheel steering off; applied brakes and reverse to stop aircraft. Stopped on taxiway; set brakes; called maintenance to have us towed back to gate. Contacted dispatch and were pulled to gate. Aircraft swap and on our way. Maintenance met us at gate; entered information in aircraft maintenance log (aml).

Original NASA ASRS Text

Title: An A320 crew reported a Brake and Steering Control Unit (BSCU) failure while taxiing for takeoff. The first brake and steering failure was reset; but the aircraft was towed to the gate after the second occurrence.

Narrative: Pushed off gate with normal indications. Taxi to Runway 36. ECAM brakes and nosewheel steering Inoperative. Reset nose wheel steering; all indications normal. Continued taxi to 36. ECAM brakes and nosewheel steering became inoperative again; unable to brake or steer. Switched nose wheel steering off; applied brakes and reverse to stop aircraft. Stopped on taxiway; set brakes; called Maintenance to have us towed back to gate. Contacted dispatch and were pulled to gate. Aircraft swap and on our way. Maintenance met us at gate; entered information in Aircraft Maintenance Log (AML).

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

An A320 crew reported a brake and steering control unit (bscu) failure while taxiing for takeoff. The first brake and steering failure was reset; but the aircraft was towed to the gate after the second occurrence.