What was found
FLT#1006, BNA-BOS. (AN EMERGENCY WAS DECLARED - CODE RED) "BRAKE ON INDICATION DURING CRUISE AT 37,000FT. STAYED ON FOR ABOUT 25 MINUTES EXTINGUISHED AT 11000FT ON DESCENT. NORMAL LANDING; SEE LOG PG 4768127 ITEM 2 (DURING IBIT TEST OF BDCU 1 & 2 FOUND THAT BDCU 1 WAS INCONSISTANT WITH TESTING AND WOULD PASS/FAIL OR KICK OUT OF THE MENU SAYING UNABLE TO TEST AT THIS TIME, REMOVED AND REPLACED BDCU 1 AND PERFORMED MULTIPLE TEST AND ALL PASSED WITH CONSISTANCY REFERANCE FOR REPLACEMENT IS AMM 32-43-10 OPS CHECK GOOD ) FOR REPLACEMENT OF BDCU 1 OPS CHECK GOO A/C IS OK FOR SERVICE.