According to Simon Calder [yes, I know he is a self-publicising ignoramus] in to-day's Independent, a device for detecting volcanic ash is being developed, by, among others, EasyJet. The device can be fitted in a A320 winglet, or attached to the 'fifth engine mounting' on a 747.
Could someone please advise exactly what and where this mounting is.
The full report can be found at:
Grounded no more: the ingenious bit of kit easyJet claims will help beat the ash cloud - News & Advice - Travel - The Independent