As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#778, LAS-BOS. (ETOPS) 'ENG 2 HEAT SYSTEM DEGRADED; PER TSM 73-11-00-810-880-A REPLACED ENG 2 IFPC ( FIN: 4360KS2) REF AMP 73-11-01. OPS AND LEAK CHECK OK. SEE LP 3829583-2 (ER GROUND VERIFICATION OF ENG 2 IFPC SUCCESSFULL REF AMP 73-11-01-720-050-A) FOR ER OPS.'