Originally Posted by
Arctic Troll
You're not eligible for compensation if the delay is due to extraordinary circumstances outside of the airline's control. Storm Darragh is as close as you'll ever get to extraordinary circumstances outside of the airline's control.
This doesn't apply to reimbursement, e.g. if you had to pay for a hotel or a taxi or food in the airport because of the delay.
A fault with an instrument in the pilot's hidey-hole isn't an "extraordinary circumstance due to weather".
Anyway, update: no reply to my e-mail to Eddie Wilson, CEO of Ryanair (as expected), so letter in black & white posted today (2nd Jan) to three directors of Ryanair UK Ltd saying I'll give them 6 weeks to pop €250 into my bank account (as entitled according to EU261 Regulation) and if I hadn't heard from them by then I'd start a Small Claims Court process.
I did say I'd be happy to accept vouchers/credit for Ryanair flights as I certainly intend to travel with them in future. There's no point in being unreasonable and inflexible.