Japanese investigators have found a slight swelling in All Nippon Airways (ANA) Boeing 787 aircraft’s auxiliary power unit (APU) battery.
Japan Transport Safety Board accident investigator Masahiro Kudo warned however that they have not yet determined whether the swelling is problematic or normal.
Japan investigation finds swelling in 787 APU battery
Japanese investigators have found a slight swelling in All Nippon Airways (ANA) Boeing 787 aircraft’s auxiliary power unit (APU) battery.
Japan Transport Safety Board accident investigator Masahiro Kudo warned however that they have not yet determined whether the swelling is problematic or normal.