As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG WITH EEC MAINT POWER SELECT SWITCH IN ALTN POSITION. EPCS PAGE DISPLAYS NO CHANNEL SELECTED. CHANNEL SELECT SWITCH HAS NO EFFECT. SQUARE BOX AROUND PRI, SEC, NOT DISPLAYED. THRUST REV WILL NOT DEPLOY. REPLACED EEC. PROBLEM STILL PERSISTS. REPLACED NR1 PDIU SYS OPS, CHECKED OK.