As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STATUS MSG AFT EQ EXH FAN 2(<P>PERFORMED OPS CHECK IAW AMM 21-58-00, OPS CHECK GOOD. FIM TASK 21-58 TASK 805 STATES SHORT TEMPORARY INTERRUPTIONS LIKE THE ONE THAT OCCUR DURING A POWER TRANSFER (GROUND-APU-ENGINE APU-GROUND) CAN CAUSE THE EICAS MESSAGE.</P>)