As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM: BLEED TRIP OFF LIGHT ILLUMINATED SHORTLY AFTER TOP OF DESCENT. C/W AMM TASK 36-11-00-700-802 (ENG BLEED AIR SYS LEAK CHECK WITH APU) FOUND NO LEAKS, FOUND HS VALVE WILL NOT CLOSE COMPLETELY. REPLACED NR 2 ENGINE HIGH STAGE VALVE, OPS CHECK NORMAL.