As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE BLEED OFF LIGHT ILLUMINATED WITH LT ENG BLEED OFF EICAS MESSAGE WITH ENGINE RUNNING. CYCLED BLEED SWITCH SEVERAL TIMES AND ENGINE POWER INCREASED TO 50% N1 TWICE WITH NO HELP. RESEATED LEFT ECS ENGINE BLEED CARD. PERFORMED PNEU SYSTEM TEST PER JRH 2-5-16. FOUND SYS TO BE OPERATING NORMAL.