“We did have an aircraft from Charlotte to RDU this afternoon, that landed at 2:19 p.m. ET, and arrived the gate at 2:21 p.m. ET, that is currently out of service for an actual mechanical issue – and odor in the cabin," American Airlines spokesman Ross Feinstein told the Associated Press (emphasis added). "But it is not due to 'passed gas' as mentioned."
In fact, airport officials said they received a medical call related to the decidedly non-gastrointestinal odor on the plane shortly after the passengers deplaned, according to the paper. So far, it's unclear where the idea of the alleged cabin cropdusting originated, but as they say, whoever smelt it dealt it.
The bottom line (sorry, we couldn't help it): you can rest assured that this particular travel nightmare is still merely a nightmare. At least, for now.