As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TOP OF DESCENT FROM FL400 RIGHT BLEED TRIP OFF LIGHT ILLUMINATED THE LIGHT WENT OUT WITH TRIP RESET PER QRH. ACCOMP NR 2ENG BLEED AIR SYSTEM HEALTH CHECK REF MM 36 11 00 700 801PGS 1 8(A)THRU(G)12. HIGH STAGE REGULATOR FAILED STEP G12(B). REPLACED HIGH STAGE REGULATOR PER AMM 36 11 07 400 801 OPS & LEAK CHECKS GOOD. ACCOMPLISHED HIGH POWER RUN REF AMM 36 11 00 710 801 ALL INDICATIONS NORMAL. VERIFICATION FLT GOOD.