"This was a persistent problem which has not been solved, mechanically and physically," said board member Steven Wallace. | "كانت هذه مشكلة مستمرة لم يتم حلها، ميكانيكياً وفيزيائياً" قال عضو مجلس الإدارة ستيفن والاس.
"This has been a persistent problem that has not been solved," investigation board member Steven Wallace said. | "هذه مشكلة مستمرة لم تحل" قال عضو مجلس التحقيق ستيفن والاس.