Narrative:

Approximately 1 1/2 hours after takeoff, flight attendant #4 wrote me a note and passed it to me over the cart stating we were heading to sfo due to a mechanical problem and the plane was not airworthy to cross the pacific. The captain soon made a PA describing the problem. The aircraft descended in order to burn off fuel as we were going to be too heavy to land. In addition, the landing gear was lowered to create drag to help burn off more fuel. We flew this way for about 2 1/2 hours. Approximately 5 hours 10 mins after takeoff, we landed safely at ZZZ2 where we acquired another B767 and continued to ZZZ1.

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Original NASA ASRS Text

Title: B767-300ER CREW LANDED SHORT BEFORE ENTERING ETOPS EXTENDED OVERWATER OP BECAUSE OF AN ENG SENSOR FAILURE.

Narrative: APPROX 1 1/2 HRS AFTER TKOF, FLT ATTENDANT #4 WROTE ME A NOTE AND PASSED IT TO ME OVER THE CART STATING WE WERE HEADING TO SFO DUE TO A MECHANICAL PROB AND THE PLANE WAS NOT AIRWORTHY TO CROSS THE PACIFIC. THE CAPT SOON MADE A PA DESCRIBING THE PROB. THE ACFT DSNDED IN ORDER TO BURN OFF FUEL AS WE WERE GOING TO BE TOO HVY TO LAND. IN ADDITION, THE LNDG GEAR WAS LOWERED TO CREATE DRAG TO HELP BURN OFF MORE FUEL. WE FLEW THIS WAY FOR ABOUT 2 1/2 HRS. APPROX 5 HRS 10 MINS AFTER TKOF, WE LANDED SAFELY AT ZZZ2 WHERE WE ACQUIRED ANOTHER B767 AND CONTINUED TO ZZZ1.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.