180 Hangar B Abbotsinch Road PA3 2RY Emergency CareLearn when to call 999 and how we respond to your callShare: When Should You Call 999 Find out when to call 999 and who to speak to if the patient is not seriously ill or injured. Phoning 999 Find out what we will ask when you phone 999 Cardiac Arrest A cardiac arrest occurs when someone’s heart stops beating. http://www.scottishambulance.com/WhatWeDo/scotstar.aspx