A National Transportation Safety Board investigator said both the runway lights and an automated weather-notification system at the destination airport were inoperable when the Cessna 550 plowed into the Murphy Canyon neighborhood at about 3:45 a.

At least three people were killed when a private jet crashed into a San Diego neighborhood Thursday morning, adding to the long list of aviation disasters this year.

The airport also had filed a notice to pilots called a Notam, informing them that one of the runways had experienced an issue with the lighting system that guides landing planes.