Master Warrant Officer A. K. Singh was a non-commissioned officer of the Indian Air Force. He hailed from Mubarakpur village in the Marhaura subdivision of Saran district, Bihar, and was enrolled into the Indian Air Force in July 1984. During his service, he worked at various Air Force bases and operated different aircraft and associated systems. He was also trained as a flight gunner and served in that role.
In October 2017, MWO A. K. Singh was serving with 157 Helicopter Unit. On 06 October 2017, he was part of an Mi-17 V5 helicopter crew undertaking an air-maintenance mission to deliver supplies to a forward Army post in the Tawang sector of Arunachal Pradesh.
The helicopter crashed near the dropping zone during the sortie. MWO A. K. Singh and the other six defence personnel onboard sustained fatal injuries. He lost his life while performing an air-maintenance duty in support of troops deployed in a remote forward area.