In simple words- a NOTAM should not be active for more than 3 months, and should not be replaced more than once. So if you still find old NOTAMS then the procedure is not being followed and should be questioned.
Be safe.
In simple words- a NOTAM should not be active for more than 3 months, and should not be replaced more than once. So if you still find old NOTAMS then the procedure is not being followed and should be questioned.