Did a meteor bring down Air France Flight 447?

Here's what we call "The back of an envelope calculation." from Discover Magazine. This theory du jour probably won't get much traction in the press. Did a meteor bring down Air France Flight 447?

My excuses for this post are:
It's a nice model for quick roughout of diverse data collection, then basic arithmetic and probability calculation.
[Note: If you'd like a stretch, calculate the odds that meteors [plural] brought down Flight 447 and TWA's Flight 800 in 1996, as the article contemplates.]
Also, it's raining and I can't fix fences or mow ...