Narrative:

Fatigue isn't an appropriate word to describe my state during the last hour of cruise. Totally exhausted would be more appropriate. I could not remember frequencies I had read back 10 seconds earlier. Although our departure had been delayed an hour due to late arriving aircraft; I felt ok to fly and was fine through takeoff; climb; and first few hours of cruise. But the ridiculous schedule I've been given caught up to me in the late stages of the flight. I have had 1 of the last 11 days off; and in that period have flown 3 all nighters; and one early departure. This type of scheduling is unnecessary; thoughtless; unhealthy; and dangerous. Going forward I have 2 days off; then 3 on; 1 off; and 5 on. This type of flying might sound fine to someone who is in an office 8 hours a day; 5 days a week; but in the actual operation with almost every flight being delayed (note not one due to pilot issues); it is proving to be unsustainable. I will be evaluating my level of fatigue carefully before each leg.

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Original NASA ASRS Text

Title: A320 Captain describes extreme fatigue after a series of late night flights.

Narrative: Fatigue isn't an appropriate word to describe my state during the last hour of cruise. Totally exhausted would be more appropriate. I could not remember frequencies I had read back 10 seconds earlier. Although our departure had been delayed an hour due to late arriving aircraft; I felt ok to fly and was fine through takeoff; climb; and first few hours of cruise. But the ridiculous schedule I've been given caught up to me in the late stages of the flight. I have had 1 of the last 11 days off; and in that period have flown 3 all nighters; and one early departure. This type of scheduling is unnecessary; thoughtless; unhealthy; and dangerous. Going forward I have 2 days off; then 3 on; 1 off; and 5 on. This type of flying might sound fine to someone who is in an office 8 hours a day; 5 days a week; but in the actual operation with almost every flight being delayed (note not ONE due to pilot issues); it is proving to be unsustainable. I will be evaluating my level of fatigue carefully before each leg.

Data retrieved from NASA's ASRS site as of July 2013 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.