As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW GOT A BLEED 2 VALVE FAIL AND RETURNED TO LAX FOR MTX. THE RETURN TO LAX WAS DUE TO ICING CONDITIONS ONLY. MTX REMOVED AND REPLACED H2 BLEED TWO VALVE IAW EMB 140 AMM 36-11-05, OPS CHECKS GOOD AT THIS TIME AIRCRAFT RETURN TO SERVICE.