Coordination...
The FAA know about occurances on foreign manufactured aircraft and equipment in exactly the same way that we find out about occurances on USA manufactured aircraft and equipment. A general rule followed by airworthiness regulatory bodies around the world is that, an action that is made mandatory by the regulatory body in the country of manufacture and/or design, is automatically mandatory in the State of registration. Significant exceptions to this general rule are the USA and Australia, where foreign mandatories must first be converted to local action. Thus, US operators can ignore foreign mandatories unless they have been covered by equivalent US FAA action.
On your profile, Ignition Override, you say you are in air safety coordination. How do you actually perform this coordination perchance? In our engineering departments, we operators receive notification direct from the foreign regulators. Meanwhile our own regulatory body oversees our compliance because they are seperately advised by the State of manufacture. How? - simple enough - we are all required to subscribe to the relevant airworthiness documentation. In our case we subscribe to various publications from the FAA, French, German, Dutch, Italian and other regulatory bodies covering our aircraft and airborne equipment not to mention those from the regulators of our engineering customers.
As with the law, ignorance is no excuse.