It is unclear if there was a malfunction on brake system 2 since there appears to have been no fligh...

Narrative:

Over night aircraft was written up as brake system 2 malfunction. Maintenance release indicated brake system 2 circuit breaker pulled and system 2 inoperative. System 1 good and crew to perform alternate brake check. After completing check; captain noticed status page indicated system 1 inoperative. Upon further investigation noticed system 1 brake circuit breaker pulled instead of 2. The captain called maintenance controller and verified incorrect brake system inoperative. Crew pulled system 2 brake circuit breaker and reset system 1 as per maintenance control instructions. Captain's attention to detail prevented us from departing with both brake systems inoperative.

Original NASA ASRS Text

Title: It is unclear if there was a malfunction on Brake System 2 since there appears to have been no flight deck message. If the alternate brake test was successful; then in the worst case; the aircraft would have been released with only alternate brake systems available.

Narrative: Over night aircraft was written up as brake system 2 malfunction. Maintenance Release indicated Brake System 2 Circuit Breaker pulled and System 2 inoperative. System 1 good and crew to perform alternate brake check. After completing check; Captain noticed status page indicated System 1 inoperative. Upon further investigation noticed System 1 Brake Circuit Breaker pulled instead of 2. The Captain called Maintenance Controller and verified incorrect brake system inoperative. Crew pulled System 2 Brake Circuit Breaker and reset System 1 as per Maintenance Control instructions. Captain's attention to detail prevented us from departing with both brake systems inoperative.

Data retrieved from NASA's ASRS site as of July 2013 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	1042027
Time
Date	201210
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Parked
Person 1
Function	First Officer Pilot Flying
Experience	Flight Crew Last 90 Days 220 Flight Crew Total 4800 Flight Crew Type 2200
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural MEL Deviation - Procedural Published Material / Policy

It is unclear if there was a malfunction on brake system 2 since there appears to have been no flight deck message. If the alternate brake test was successful; then in the worst case; the aircraft would have been released with only alternate brake systems available.