As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE BLEED EICAS, DURING FLT. QRH COMPLETED. REMOVED AND REPLACED PRV EXIT PRESSURE SENSOR. OPS CHECKED GOOD, ACFT OK FOR SERVICE IAW AMM 36-21-08. PERFORMED POWER ASSURANCE TEST IAW 71-00-00-735-394-H03. ALL INDICATIONS SATISFACTORY AND NO FAULTS NOTED.