"Air Emergency" on National Geographic

I viewed a episode of "Air Emergency" recently on National Geographic Channel. I recommend this series as it is so precise and fact-filled. In the episode I saw, an AeroPeru B757 crashed into the Ocean. What was shocking was that the cause was not any faulty equipment but that a maintenance worker, cleaning and polishing the fuselage, forgot to remove a piece of tape. The tape was blocking the Static Ports, so the crew was getting incorrect readings. They also aired a concise report about the investigation into the crash of Pan Am 103. This series is fascinating and scary, too. I am new to cable so these series are new to me.