Originally Posted by
oliver2002
Each aircraft type needs a STC from the regulator before the new cabin is installed. Previously such STC were issued in weeks, now it takes months. The STC can only be applied for after one line or retrofit is done in one aircraft. This has been done on D-ABPF and D-AIXR and now the approval is pending. The same procedure is followed by all seat/cabin/aircraft manufacturers.
However I think one can fairly argue that the complexity that LH put into their Allegris cabin is likely a key reason why this takes months... (and rightly so, as the risk that sth. is not done well is much higher. So it is good that the regulators don't rush). The airlines who sticked much closer to standard products clearly did not wait that long. The blame overall is fully on LH for their decision to go with this in-house solution... All the issues we have now (certification, supply chain, etc.) would be less an issue without the messy Allegris cabin design