South Korean LAH-1 Attack Helicopters Grounded Over Engine Defects

South Korea's domestically developed LAH-1 "MIRON" light attack helicopter is facing a significant setback due to widespread engine defects. Reports indicate that out of 57 delivered engines, a staggering 47 have been found to be corroded, and 38 exhibit cracks. Some engines suffer from both issues simultaneously.

Following the discovery of these defects, the Defense Acquisition Program Administration has ordered a grounding of all LAH-1 helicopters for thorough inspection. The 15 LAH-1s currently delivered and in use for pilot training at the South Korean Army Aviation School are among those affected, with nearly all experiencing engine corrosion and cracking.

Preliminary investigations suggest that the problem stems from the assembly process. The engine technology for the LAH-1 is provided by the French aerospace company Safran. However, it is believed that Hanwha Aerospace, responsible for the assembly in South Korea, failed to adhere strictly to the assembly procedures provided by Safran.

The LAH-1 is intended to replace the South Korean Army's aging MD 500 Defender and AH-1S Cobra helicopters. The original plan was to have 160 LAH-1s in service by 2031. However, these engine defects could disrupt the deployment schedule and delay pilot training, casting uncertainty over the program's future.