As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PACK LIGHT OFF INOP R PACK OFF EICAS MSG NO ILLUMINATED WHEN RIGHT PACK IS OFF. TRANSFERRED TO DMI LOG PER 21-51-1-1 M662682 ASSIGNED. **SUPPLEMENTAL ETOPS **ACCOMPLISHED FIM 21 51 00 815 818 001 1 BLOCKS 1-7 AND 40 FOUND LOW LIMIT VALVE AT FAULT. REMOVED AND REPLACED RIGHT PACK LOW LIMIT VALVE WITH REF TO MM 21 51 11 201. TESTS GOOD EFF 21 51 11 01A 045. THIS CLOSES M662682.