As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED, AN EMERGENCY WAS NOT DECLARED DUE TO: FLIGHT CONTROL SYSTEM-B LOW PRESSURE INDICATION LIGHT CAME ON DURING CLIMB OUT. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT AUS. PERFORMED CHECK OF FLIGHT CONTROL SYSTEM-B LOW PRESSURE LIGHT PER FIM 27-21-00. OPERATIONAL CHECK GOOD NO DEFECTS NOTED AT THIS TIME. NO FAULT FOUND.