ד אוּנָּא הַסְרוּכָה לְאוּנָּא אוֹ לְאוּמָה, בֵּין סְרוּכָה מְעַט בֵּין סְרוּכָה כֻּלָּהּ, שֶׁלֹּא כְּסִדְרָן, טְרֵפָה; כְּסִדְרָן, כְּשֵׁרָה (ר"ן וְחִדּוּשֵׁי רַשְׁבָּ"א) אֲפִלּוּ בְּלֹא בְּדִיקָה מִיהוּ אִם בְּדָקוּהָ וְנִמְצָא שָׁם נֶקֶב טְרֵפָה (בֵּית יוֹסֵף); וְאֵין נִקְרָא כְּסִדְרָן אֶלָּא בִּשְׁתַּיִם זוֹ אֵצֶל זוֹ, מֵחִתּוּךְ שֶׁל זוֹ לְחִתּוּךְ שֶׁל זוֹ, וַאֲפִלּוּ הִיא בַּאֲלַכְסוֹן וַאֲפִלּוּ יֵשׁ בָּהּ פִּלּוּשׁ; אֲבָל מִגַּבָּהּ שֶׁל זוֹ לְגַבָּהּ שֶׁל זוֹ, אוֹ אֲפִלּוּ מֵחִתּוּךְ לַגַּב אוֹ מִשִּׁפּוּלֵי לְשִׁפּוּלֵי, אוֹ מִשִּׁפּוּלֵי לְחִתּוּךְ, אוֹ אֲפִלּוּ מֵחֻדָּהּ שֶׁל זוֹ לְחֻדָּהּ שֶׁל זוֹ שֶׁאֶצְלָהּ, אוֹ אֲפִלּוּ מֵחֻדָּהּ שֶׁל זוֹ לְחִתּוּךְ שֶׁל זוֹ שֶׁאֶצְלָהּ, נִקְרָא: שֶׁלֹּא כְּסִדְרָן. הַגָּה: וְיֵשׁ אוֹמְרִים דַּאֲפִילוּ בִּכְסִדְרָן צָרִיךְ בְּדִיקָה שֶׁאֵין נֶקֶב בָּרֵאָה (סמ"ק וְהגמ"יי בְּשֵׁם ריצב"א ותוס' בְּשֵׁם ר"ג וְעוֹד גְּאוֹנִים וְכָל בּוֹ), וּמֵאַחַר שֶׁאֵין אָנוּ בְּקִיאִין בִּבְדִיקָה כָּל מָקוֹם דְּאִיכָּא רֵעוּתָא יֵשׁ לְהַטְרִיף כָּל סִרְכָא (הַגָּהוֹת מַיְמוֹנִי וסמ"ק וסמ"ג וְכָל בּוֹ); וְיֵשׁ אוֹמְרִים לְהַכְשִׁירָהּ אִם הִיא מֵעִקַּר הָאוּנוֹת עַד חֶצְיָן (מהרי"ו), אֲפִלּוּ מְפֻלָּשׁ, וְכֵן נוֹהֲגִין לְהַכְשִׁיר כִּי הַאי בִּכְסִדְרָן, וְכֵן אִם יֵשׁ כְּמִין קְרוּם בֵּין אֻנָּא לְאֻנָּא אוֹ בֵּין אוּמָה לְאֻנָּא כְּסִדְרָן יוֹצֵא מֵעִקָּרוֹ עַד אֶמְצָעִיתוֹ אֵין לְהַטְרִיף, דְּדֶרֶךְ הוּא לְהִמָּצֵא כָּךְ וְאֵין זֶה סִרְכָא (סְמַ"ג וְהגמ"יי וּסְמַ"ק וְכָל בּוֹ). וְאֵין דֶּרֶךְ קְרוּם זֶה לְהִמָּצֵא אֶלָּא בֵּין אוּנָּא לְאוּנָּא אוֹ בֵּין אוּנָּא לְאוּמָה, אֲבָל לֹא בִּשְׁאָר מְקוֹמוֹת (בֵּית יוֹסֵף וד"מ), וְאִם נִמְצָא בִּשְׁאָר מָקוֹם אֵינוֹ אֶלָּא סִרְכָא. וְכָל מָקוֹם שֶׁהַסִּרְכָא כְּשֵׁרָה אַף אִם יֵשׁ סִרְכָא תְּלוּיָה גַּם בְּאוֹתָן סְרָכוֹת, וְהוּא נִקְרָא סִרְכָא כְּפוּלָה, כָּשֵׁר (בֵּית יוֹסֵף).
4 A minor lobe connected to another minor lobe or to the major lobe, whether slightly connected or connected along the entire lobe, if they are connected "out of order" it is treifah and if it is connected "in order" it is kosher, even without checking (the lung for a hole). Beit Yosef- However, if he inspected the sircha that was "in order" and one found a hole the animal is treifa. The sircha is not considered "in order" except when it is connecting two lobes one next to the other from chituch (flat side overlapped by the neighboring lobe) of one to the chituch of the other, even if the sircha is diagonal or penetrates into the neighboring lobe. However, if the sircha goes from the back of a lobe to the back of the neighboring lobe or even from the chituch to the back of the neighboring lobe, or from the outer edge of the lobe to the outer edge of the neighboring lobe or from the edge of the lung to chituch of the other, or even from the point of one to the point of the other that is next to it, or even from the point of one the chituch of the other that is next to it, it is called "out of order." Rema: There are those who say that even when the sircha is "in order" it needs to be checked to make sure there is no hole in the lung. Because we are not experts in checking for things that can be problems one should consider any sircha (including "in order") treifa, and there are those who say it is kosher if the sircha extends from the origin of the lobes up to the middle of them (by width) even if it is open on both sides. This is indeed the custom to permit it if it is "in order" in this way. Similarly, if there is a membrane connecting a minor lobe to a minor lobe or a minor lobe to a major lobe spanning from the origin of the lobes until the middle of them we do not consider it treifa, as it is normal to find it like this and it is not a sircha. This membrane is only normally found between minor lobes or between the major and minor lobes but not in other places, and if a membrane is found connecting a lobe to another place it is a sircha (and forbidden). Anywhere (on the lung) that the sircha is permitted, even if there is another sircha connected to that same sircha it is called a "folded sircha" and it is permissible.