Narrative:

Flying the second red eye plus one; this red eye is an out and back with over seven hours of flight time. On the return to base I was falling asleep. I was startled by ATC calls and I was fighting to stay awake. We did the same flight the day before and I was very tired then as well. We were in cruise so I was able to stand up and wake up; but during approach it was difficult to catch all ATC calls. I talked with the captain and stood up; stretched; [did] breathing exercises; etc. I should have called in fatigued. All back side of the clock flying should be one leg and only back side of the clock show times. Good; healthy food needs to be supplied for the crews as none is available at the airport.

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Original NASA ASRS Text

Title: A319 First Officer describes fatiguing out and back red eye flights with over seven hours of flight time.

Narrative: Flying the second red eye plus one; this red eye is an out and back with over seven hours of flight time. On the return to base I was falling asleep. I was startled by ATC calls and I was fighting to stay awake. We did the same flight the day before and I was very tired then as well. We were in cruise so I was able to stand up and wake up; but during approach it was difficult to catch all ATC calls. I talked with the Captain and stood up; stretched; [did] breathing exercises; etc. I should have called in fatigued. All back side of the clock flying should be one leg and only back side of the clock show times. Good; healthy food needs to be supplied for the crews as none is available at the airport.

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.