Narrative:

I was pilot monitoring. This was the second leg of the day with this aircraft. Due to a MEL item; maximum power takeoff was required; normal takeoff in VMC. Approximately 45 minutes into flight at cruise; I was doing a fuel check and noticed a 300 pound fuel split. I checked the fuel flow and noticed the left fuel flow was around 200 pounds greater than the right; the EPR was slightly higher and so was the egt. I mentioned this to the captain and he observed an egt exceedance of 889 displayed in white; in a white box below the actual egt indication. Apparently the left egt had over temped at some point during the flight (most likely during the required maximum power takeoff). This went unnoticed by us until this point. We looked in the QRH and the red book for an applicable procedure and also found no history in the maintenance logbook. At this point the captain attempted to contact maintenance through a phone patch with dispatch. We were unable to phone patch. The engine operated normally throughout the flight (as it had on the previous leg) and we made an uneventful landing.

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Original NASA ASRS Text

Title: A B757-200 Crew reported an engine over temperature detected at cruise may have occurred during the maximum power takeoff.

Narrative: I was Pilot Monitoring. This was the second leg of the day with this aircraft. Due to a MEL item; maximum power takeoff was required; normal takeoff in VMC. Approximately 45 minutes into flight at cruise; I was doing a fuel check and noticed a 300 pound fuel split. I checked the fuel flow and noticed the left fuel flow was around 200 pounds greater than the right; the EPR was slightly higher and so was the EGT. I mentioned this to the Captain and he observed an EGT exceedance of 889 displayed in white; in a white box below the actual EGT indication. Apparently the left EGT had over temped at some point during the flight (most likely during the required maximum power takeoff). This went unnoticed by us until this point. We looked in the QRH and the red book for an applicable procedure and also found no history in the maintenance logbook. At this point the Captain attempted to contact Maintenance through a phone patch with Dispatch. We were unable to phone patch. The engine operated normally throughout the flight (as it had on the previous leg) and we made an uneventful landing.

Data retrieved from NASA's ASRS site as of April 2012 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.