As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MOMENTARY AND INTERMITTENT EICAS L ENG BLEED OFF MESSAGE. EXTINGUISHED AFTER APPROX 15 SEC. LT PRESSURE 12PSI, RT PRESSURE 30PSI.(<P>PERFORMED BLEED CONTROL SUPPLY SYSTEM BIT TEST IAW AMM 36-26-00. NO FAULTS NOTED AT THIS TIME. SYSTEM TESTS OK.</P>)