What was found
LEFT ISOLATION VALVE LIGHT ILLUMINATED. ASSOCIATED BLEED ISOLATION VALVE EICAS MESSAGE IS DISPLAYED. R & R ISOLATION VALVE IAW MM, OPS CHECKED OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT ISOLATION VALVE LIGHT ILLUMINATED. ASSOCIATED BLEED ISOLATION VALVE EICAS MESSAGE IS DISPLAYED. R & R ISOLATION VALVE IAW MM, OPS CHECKED OK.