Sent_en: 2zh The NTSB has now revealed that they have advised Rolls-Royce to redesign the fuel/oil heat exchanger, and Rolls-Royce have stated that they are indeed working on a replacement part that will be available within twelve months.
Sent_yy: 国家运输安全委员会透露说，他们已经建议劳斯莱斯重新设计其燃油或滑油热交换器，而后者表示，他们确实正在设计一个替换部件，并将于12个月内供货。