Taken from this news article
What does "酿" mean in this sentence:
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酿 means lead to/result in in that sentence.
As the original meaning of 酿 is "the process of making wine", the sentence
A + 酿(成) + B
is a metaphor for "A leads to B (in a gradual/long-term process)",
Personally, I think the sentence
苹果 iPhone 5 酿致命意外。 Apple iPhone 5 leads to a fatal accident.
is not rigorous enough. Though it is acceptable, and one may complete the sentence in mind as
苹果 iPhone 5 (的设计缺陷) 酿致命意外。 (The design flaw of) Apple iPhone 5 leads to a fatal accident.
So, a more logical sample sentence would be
疏忽酿大错。 Carelessness leads to serious blunders.