In a statement, it said:
“The National Transportation Safety Board (NTSB) determined that the probable cause of this accident was a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly’s Acme nut threads.
“The thread failure was caused by excessive wear resulting from Alaska Airline’s insufficient lubrication of the jackscrew assembly.”
A finding like this would now immediately prompt reviews by aerospace engineers, mechanical compliance experts, and aviation malpractice law firms, all of whom monitor similar failures for implications on safety protocols and corporate insurance coverage.
