EMB190 captain reports a brake fault message being reset by maintenance and the aircraft released fo...

Narrative:

Aircraft came to us with a brake fault write up. Maintenance reset the fault and signed it off. Upon our gear extension for landing; we got the brake fault rh and lh EICAS messages again. Ran the QRH procedure for landing with full flaps on the longest runway. Braking effectiveness was noticeably reduced; but still stopped in the first 1/2 of the runway. We had declared an emergency with ATC and rolled the trucks as a precaution. The passengers and flight attendants were notified of a 'disagreement light' in the cockpit and that we were going to have a normal landing even though they might see the emergency vehicles following us in. Upon landing; the outboard brakes had not worked and showed ambient air temperatures; while both inboard brakes had warm temperatures in excess of 325 degrees C. Unresolved; actual maintenance issue was masked by a software reset procedure. Crew performed quite well.

Original NASA ASRS Text

Title: EMB190 Captain reports a brake fault message being reset by maintenance and the aircraft released for service. On the next landing the fault repeats and brake temperatures indicate that neither outboard brake is working.

Narrative: Aircraft came to us with a Brake Fault write up. Maintenance reset the fault and signed it off. Upon our gear extension for landing; we got the Brake Fault RH and LH EICAS messages again. Ran the QRH procedure for landing with Full flaps on the longest runway. Braking effectiveness was noticeably reduced; but still stopped in the first 1/2 of the runway. We had declared an emergency with ATC and rolled the trucks as a precaution. The passengers and flight attendants were notified of a 'disagreement light' in the cockpit and that we were going to have a normal landing even though they might see the emergency vehicles following us in. Upon landing; the outboard brakes had not worked and showed ambient air temperatures; while both inboard brakes had warm temperatures in excess of 325 degrees C. Unresolved; actual maintenance issue was masked by a software reset procedure. Crew performed quite well.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	964418
Time
Date	201108
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Tower
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	EMB ERJ 190/195 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	Final Approach Initial Approach Landing
Flight Plan	IFR
Component
Aircraft Component	Normal Brake System
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Maintenance

EMB190 captain reports a brake fault message being reset by maintenance and the aircraft released for service. On the next landing the fault repeats and brake temperatures indicate that neither outboard brake is working.