Originally Posted by
dctyke
It will state the fault(s) or limitations on the particular airframe and the person authorising the aircraft to fly within certain constraints. For example monitoring a crack, one flight to base only etc. That person, provided they are authorised will not have to go to a higher authority to allow it although would seek advice if circumstances allowed. On a squadron the SEngO, experienced JEngO and Eng WO would have that authorisation.
So it pre-supposes a fully airworthy aircraft with the exception of the specific named fault for which the dispensation of a single flight (RTB) is being authorised. So will these two aircraft fit that bill? Will the person authorising their flights out of UK airspace be able to make such a supposition? If so, how? He or She would be well advised to seek the advice from higher authority that you mention. In writing, with a dated and named signature!
PS just seen your link, Nutloose. Thank you. So the CAA, and not the regulatory authority responsible for the aircrafts' airworthiness (the MAA), issues the permit to fly. Why is that? How would the CAA be assured of the risks involved, or do they simply cross their fingers (rather as the MAA does)?