As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM, R AFT BOOST PUMP LOW PRESS LGT FAILED TO ILLUM AND EICAS MSG FAILED TO DISPLAY WITH SW OFF. CLEANED CONTACTS AT PRESS SWITCH CONNECTOR. PRESS LIGHT AND EICAS MSG FUNCT NORMAL. OPS CK R AFT BOOST PUMP PER AMM 28-27-00, OPS NORMAL.