PEI
We are talking to Honeywell but they haven't unearthed an STC yet which, in itself, suggests it may not have been necessary.
Limer
Very interesting. In fact we did have 8110-3 approval from a DER but he's reviewed his decision and now says that we need an STC. I like the idea of getting a minor deviation approved against the Honeywell STC - if it's available.
T Shirt
Thanks for the link. The current operator has selected another STC provider (similar to ECS) to do the work but now even this provider is questioning whether an STC is necessary!
Getting increasingly confused!