grrowler
In the event that probe/ sensor blockages cause a dual ADR fault, the ECAM instructs us to turn off the affected ADRs, and the aircraft reverts to ALTN LAW.
Hypothetically, if the blockage/s were cleared, could the ADR's be turned back on, and would the affected systems recover? Any references would be appreciated
If you had dual ADR fault and you switched off the faulty ADRs there is simply no way of knowing if the ADR has become OK. So end of story. The other case is NAV ADR disagree where one ADR is already rejected and other two disagree or all three give different outputs right or wrong immaterial you are asked to identify the faulty one/ones, there also once you switch off there is no way off knowing if it becomes OK. So your hypothesis is not very practical but theoretically it can be turned on, but when you don't know whether they are correct why would you?