The windshield on a New York-bound passenger jet cracked half an hour after takeoff Tuesday, but the plane returned to the airport without incident.
Delta Flight 96 took off from San Francisco International Airport at 11 a.m. and was flying at 30,000 feet when cracks suddenly appeared on the outer lamination of the pilot-side windshield.
"There was rapid spider-web cracking," said airport spokesman Ron Wilson. "The crew said you could hear it--it was somewhat frightening."
Nothing had hit the plane, the crew reported.
The pilot dropped the Boeing 767 to 10,000 feet and turned around to San Francisco, where the plane landed about noon, he said.