Seven airlines have fifty 787s grounded at airports across the world:

Tokyo Haneda, Japan: 12
Tokyo Narita, Japan: 7
Mumbai, India: 5
Houston, USA: 4
Addis Ababa, Ethiopia:4
Santiago, Chile: 3
Takamatsu, Japan: 2
Bangalore, India: 1
Boston, USA: 1
Chicago,USA: 1
Doha, Qatar: 1
Frankfurt, Germany: 1
Kumamoto, Japan: 1
London Heathrow, UK: 1
Los Angeles, USA: 1
Matsuyama, Japan: 1
Warsaw, Poland: 1

In addition, Boeing has about 20 undelivered 787s.