Manufacturers should be required to determine if engine restart capability exists when core rotation speed drops to zero after high-power, high-altitude flameouts, according to the NTSB. For airplanes susceptible to engine core lock, manufacturers should be required to provide design or operational means to ensure restart capability.
“It caught my eye becauseit was…different,” said Brad Brooks, a customer service agent. That difference was an angleof ascent more than 45 degrees– other than a brief correction so violent that the tail pitched over the nose. “I’ve never seen that before,” said Brooks.