![](https://flightsafety.org/wp-content/uploads/2021/08/jacksonvilleoverrun-ntsb-e1628861811783.jpg)
Heavy rain and standing water on the runway caused a chartered Boeing 737 to hydroplane after an unstable approach to Jacksonville, Florida, U.S., and to run off the runway and into the St. Johns River, the U.S. National Transportation Safety Board (NTSB) says.