Apostles are NOT infallible:

• Apostles make mistakes.  Though they have responsibility to rule over the entire church and to receive revelation and doctrine for the entire church, yet, they can make mistakes.  This is why apostles make every effort to only teach the apostle's doctrine, that doctrine which has been revealed to all the brethren. There is a time recorded in the Bible when Peter was in the wrong and Paul had to correct him.  This also shows that each apostle is under the government of all the other apostles.  God left no person who does not have to submit to others.
• Galatians 2:11-15  "But when Peter was come to Antioch, I withstood him to the face, because he was to be blamed. For before that certain came from James, he did eat with the Gentiles: but when they were come, he withdrew and separated himself, fearing them which were of the circumcision. And the other Jews dissembled likewise with him; insomuch that Barnabas also was carried away with their dissimulation. But when I saw that they walked not uprightly according to the truth of the gospel, I said to Peter before them all, If thou, being a Jew, livest after the manner of Gentiles, and not as do the Jews, why compellest thou the Gentiles to live as do the Jews? We who are Jews by nature, and not sinners of the Gentiles,"
• James 3:2  "For all of us make many mistakes. If someone does not make any mistakes when he speaks, he is perfect and able to control his whole body."  James 3:2 KJV  " For in many things we offend all. If any man offend not in word, the same is a perfect man, and able also to bridle the whole body."