The Republic of Korea's Korean Air Lines company announced on Thursday that it has signed a memorandum of understanding (MoU) with Boeing to develop technology upgrade for CH-47 Chinook helicopter. Both the Republic of Korean Army and Air Force use Chinook helicopters for Search & Rescue (SAR) and transportation of artillery and troops. 

The MoU for the partnership was signed at the Seoul International Aerospace & Defense Exhibition (ADEX) 2017. Korean Air and Boeing will collaborate technically on the Chinook design, modification flight-testing, and airworthiness upgrades, the statement said. Korean Air is performing depot-level maintenance and modification of the CH-47, CH-53, F-4, C-130, KC-130J and UH-60 helicopters. Through this MOU, both companies seek to jointly participate in the Korean Chinook Helicopter Upgrade Program and plan to expand the collaboration for future upgrade programs and ILS in the Republic of Korea.