Mayday/Air Crash Investigation as a source 

It was discussed here. Mayday's producers have in at least one show made up things out of whole cloth namely the show on PSA Flight 182 stating the crew of the 727 that crashed had violated sterile cockpit rules. The NTSB report says nothing on that subject. I've watched many of the episodes, and there were other factual mistakes. So what I said earlier still applies- Mayday isn't a WP:RS.