As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLEED FAMV L EICAS STATUS LEFT ENGINE BLEED FAN AIR MODULATING VALVE (FAMV) FAILED OPEN OR CLOSED OR LEFT AIR SUPPLY AND CABIN PRESSURE CONTROLLER FAILURE . DB AIR SUPPLY & CABIN PRESSURE CONTROLLER (L) REF LP 3597938, REPLACED SENSOR M36004. ACCOMPLISHED ENGINE AIR SUPPLY - OPERATIONAL TESTREFERENCE: TASK 36-10-00-700-801 ALL TESTS PASSED