B787 main battery OVHT WNG - Incident toned down - Curt Lewis

Incident: United B788 near Paris on Nov 13th 2017, main battery overheated

A United Boeing 787-800, registration N26909 performing flight UA-915 (dep Nov 12th) from Washington Dulles,DC (USA) to Paris Charles de Gaulle (France), was descending towards Paris when the crew received a main battery overheat indication. The aircraft continued for a safe landing on Paris' runway 27R. On Nov 16th 2017 The Aviation Herald received information that following landing the main battery was found venting fluid via and dripping fluid from the forward vent relief system. On Nov 16th 2017 The Aviation Herald contacted the NTSB regarding the occurrence, raising the question: "Can you confirm the aircraft indeed suffered a main battery event involving battery overheat, venting (contained) of fluids and dripping of such fluid off the forward battery vent relief?" and asked whether this occurrence would be investigated. On Nov 30th 2017 the NTSB reported the occurrence was rated a non-reportable incident, the NTSB had thus not been informed, however, as a courtesy received information from Boeing confirming the occurrence. No investigation has been opened. The occurrence aircraft remained on the ground in Paris for about 96 hours, then positioned to Denver,CO (USA) (UA-2697) via Washington Dulles,DC (USA) (UA-2698), then remained on the ground in Denver for about 56 hours and returned to service.