Description & Facts: 2010 - Flight 74 - A Qantas jet bound for Sydney was forced to turn back to San Francisco after an engine problem caused a hole to be punched in the metal shell around it. --- Details and ATC Pilot Communication --- www.youtube.com --- Photo of the hole --- static.stuff.co.nz Flight 74, carrying 212 passengers and a crew of 18, left San Francisco for Sydney at 11.05pm on Monday local time (6.05pm NZ on Tuesday) and returned at 12.45am (7.45pm NZ), San Francisco airport duty manager Carol Spear said. About 15 to 20 minutes into the flight, the crew noticed "excessive vibration" in engine No.4 of the Boeing 747-400, Qantas Airways spokesman Simon Rushton said in Sydney. "After some initial troubleshooting, they made the appropriate decision to shut the engine down," Mr Rushton said. "They also made the appropriate decision to seek priority clearance to return to San Francisco." The pilot dumped fuel over the Pacific as a precaution, he said. There were no injuries during the landing, Mr Rushton said, and the plane was able to pull up to the aerobridge at the terminal so passengers could get off the plane. Mr Rushton said engine failures were "very rare events" and there was no fire. He could not say whether similar incidents had occurred to other Qantas planes. "Engineers have determined the engine does need replacement, and they are checking to see what caused the problem," he said. "We are dispatching a replacement engine early this afternoon to San Francisco along with a