Aircraft delivered to Ryanair have usually entered service remarkably quickly - often arriving at DUB one afternoon and engaging in revenue flights the next day. It is therefore surprising to see that the most recent delivery (EI-IJZ) which arrived at DUB on the 1st August has not yet entered service. Also another very recent delivery (EI-IKA) completed a few flights but has not moved from ALC since the early hours of the 2nd August. Can anyone reveal the reason for this? Are there serviceability issues already with these new aircraft?