As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EICAS MESSAGE RT BLEED ISO VALVE. BACK TO BLOCK, AIRCRAFT GROUNDED. DEFERRED, REMOVED/REPLACED RT BLEED ISO VALVE, IAW AMM 36-11-04. ACCOMPLISHED REACTIVATION PROCEDURES. REFERENCE CLEARING ACTION FOR DI 19878 ON L/P 38224-01/2. VERIFIED P/N 2780539-105 S/N 3108 ISOLATION VALVE INSTALLED RT POSITION EFFECTIVE FOR ETOPS, PER IPC 36-11-04-01 ITEM 60. PERFORMED SUCCESSFUL OPS CHECK OF ISOLATION VALVE, IAW AMM 36-11-04. THESE ACTIONS UPGRADE A/C TO ETOPS 180. PLACARD ROTATED TO 180.