Death toll from UPS plane crash at Louisville airport rises to 13
1. UPS cargo plane crash in Louisville kills 13, including three crew members. 2. The NTSB investigates aircraft's maintenance history before the tragedy. 3. UPS Worldport operations resumed swiftly after the incident. 4. Candlelight vigil held for victims, showcasing community support. 5. Federal investigations may affect UPS operational protocols moving forward.