ADS stocks a number of Collins parts against demand supplied by customers.  ADS exclusively supplies Collins parts to Hindustan Aeronautics Ltd (HAL) in support of the Maintenance, Repair & Overhaul (MRO) of the Cheetah/Chetak helicopter fleet (based upon the Lama).

The types of aircraft which are supported are:

• Cheetah/Chetak Helicopters (India)
• Advanced Light Helicopter (India)
• Light Utility Helicopter (India)
• AS350 / AS355 / AS332 / AS565

ADS also supplies Ratheon (formally Collins) Aerospace with Honeywell Mechanical and Air Thermal based parts in support of their manufacturing programs SAAB/TEMPEST.