Airport Transit needed
This is what i found on German consulate
Looks like people who are on AP with Expired VISA need to apply for airport transit visa according to the following info from German consulate
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List of countries whose citizens do need a airport transit visa
Afghanistan (please see exception 2)
Angola
Bangladesh (please see exception 2)
Congo, Democratic Republic (please see exception 2)
Eritrea (please see exception 1)
Ethiopia (please see exception 2)
Gambia
Ghana (please see exception 2)
India (please see exception 1)
Iran (please see exception 2)
Iraq (please see exception 2)
Jordan
Lebanon
Nigeria (please see exception 2)
Pakistan (please see exception 2)
Somalia (please see exception 2)
Sri Lanka (please see exception 2)
Sudan
Syria
Turkey (please see exception 1)
If your country is not mentioned, you do not need a transit visa.
Exception 1 to the list above:
If you hold a valid visa or residence permit for a member country of the European Union, Canada, Switzerland or the United States of America you do not need an airport transit visa.
If you are still in doubt whether you need an airport transit visa, do not hesitate to call the German mission which serves your place of residence in the US.
Exception 2 to the list above:
If you hold a residence permit for a member country of the European Union or if you hold a permanent residence permit for Andorra, Japan, Canada, Monaco, San Marino, Switzerland, the Holy See or the United States of America you do not need an airport transit visa.
If you are still in doubt whether you need an airport transit visa, do not hesitate to call the German mission which serves your place of residence in the US.
Although this information has been prepared with utmost care, the we can not accept any responsibility for inaccuracies contained herein.