As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUAL BLEED LOSS PROBLEM. FLIGHT DIVERTED. ACCOMPLISHED PNEUMATIC SYSTEM TROUBLESHOOT NR 2 ENG WITH TEST UNIT. REPLACED LEFT & RIGHT BLEED AIR REGULATORS AND NR 2 ENG BLEED OVERHEAT SWITCH. ACCOMPLISHED BLEED AIR SYSTEM TEST NR 1 & NR 2 ENG AND BLEED AIR PRECOOL TEST, ALL CHECKS NORMAL.