As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM, EICAS MSG R ENG ANTI-ICE DISPLAYED AND ENG VALVE LIGHT ILLUM W/SWITCH SEL ON. VALVE LIGHT/EICAS MSG ON IN CLIMB AFTER SELECTION ON BEFORE T/O. SYS ON FOR 15-20 MIN BEFORE VALVE LIGHT ILLUMINATED, LIGHT MSG INTERMITTENT AFTER THAT. REPLACED RIGHT ENG ANTI-ICE SWITCH. GND RUN UP, OPS CK OK.