Boeing is still recovering from years of crises and controversies that dented its reputation, drained cash and saddled it with a heavy debt load. (EPA Images pic)SEATTLE: Boeing posted a bigger third-quarter loss than expected on Tuesday, as supply-chain challenges and production delays in its commercial airplane division overshadowed stronger margins across the rest of the company.

Shares of the US planemaker fell 2.5% in premarket trading even as Boeing continues to recover from years of crises and controversies that dented its reputation, drained cash and saddled it with a heavy debt load.

During the quarter, Boeing secured certification for the 737 MAX 7 from US regulators, won the US Navy's sixth-generation F/A-XX fighter contract and generated free cash flow for another quarter, while certification of the larger MAX 10 followed in October.