Investigators say near-collision of Navy ships in San Diego Bay was a preventable incident

The near-collision of two Navy warships in San Diego Bay in November was a preventable incident caused by numerous failures, including poor communication on and between the vessels, according to an investigation by the Navy.

The partially-redacted report also says that evasive action taken by junior officers enabled the guided-missile destroyer Momsen and the dock landing ship Harpers Ferry to avoid crashing into one another in the narrowest part of the harbor.

The bay is home to more than 50 Navy ships, including two aircraft carriers, making it the largest naval installation on the West Coast and one of the largest in the world.