United Airlines flight 811

United airlines flight 811 was a Boeing 747 that had its cargo door blown off on February 24, 1989. It is featured in the season 1 episode, Unlocking Disaster.

The plane took off from Honolulu. Later, the crew heard a loud thump that shook the airplane. And then the cargo door opened. It opened with such force that it hit the fuselage and it killed 9 people. Wreckage from the plane flew into the engines and damaged them. The plane landed safely at Honolulu.