Ducki
Handling equipment such as GPUs is not the concern of Aerodrome Standards who award the Licence, which is about compliance with CAP 168.
Airport equipment such as ground lighting, approach aids and so on is the concern of AS, and therefore so are the provisions in place to ensure its proper maintenancer and monitoring.
The CAA might conceivably be interested in handling equipment from the continuing airworthiness angle, but I very much doubt it; it's the aircraft operator's responsibility to make sure it works OK, even when the equipment is provided by a contractor such as a handling agent.
Last edited by Capot; 30th Nov 2008 at 12:00.