As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GNDED. DURING ACCOMPLISHMENT OF WC 2908, SEVERAL POWER SUPPLIES FAILED. R & R POWER SUPPLIES IAW MCM CARD 2908. SEE ALSO AALA 20160407002, AALA 20160411009, AALA 20160411011, AALA 20160411012, AALA 20160411013 & AALA 20160411014.