Narrative:

Far 117 rules are too complicated and allow too much flight time and duty time. I just finished working 9 out of 10 days that according to the computer I was legal for but in my opinion should not be allowed. I blocked 48+57 (it would have been more however the last leg was cancelled); was on duty for 80+01; and had a fdp of 68+11 which is totally ridiculous that DH at the end of the day doesn't count towards fdp. I am still on duty and still at work and not getting any rest sitting around the airport for multiple hours waiting for a DH back to domicile.far 117 rules require a computer to determine [compliance] because every minute; it changes. There is no way that what I did 354 days ago affects me in a fatigue sense today but flying almost 50 hours in a 10 day period definitely does. The old 30 in 7 was much easier to calculate and much simpler to apply. It also was a much more reasonable limit. Far 117 has caused me to be the most tired I have ever been since I started flying. [It] did not help decrease fatigue but did the exact opposite. Rewrite far 117 rules and make them simpler to calculate and more realistic.

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Original NASA ASRS Text

Title: Air carrier pilot reported he was more fatigued under FAR 117 than under previous regulations.

Narrative: FAR 117 rules are too complicated and allow too much flight time and duty time. I just finished working 9 out of 10 days that according to the computer I was legal for but in my opinion should not be allowed. I blocked 48+57 (it would have been more however the last leg was cancelled); was on duty for 80+01; and had a FDP of 68+11 which is totally ridiculous that DH at the end of the day doesn't count towards FDP. I am still on duty and still at work and not getting any rest sitting around the airport for multiple hours waiting for a DH back to domicile.FAR 117 rules require a computer to determine [compliance] because every minute; it changes. There is no way that what I did 354 days ago affects me in a fatigue sense today but flying almost 50 hours in a 10 day period definitely does. The old 30 in 7 was much easier to calculate and much simpler to apply. It also was a much more reasonable limit. FAR 117 has caused me to be the most tired I have ever been since I started flying. [It] did not help decrease fatigue but did the exact opposite. Rewrite FAR 117 rules and make them simpler to calculate and more realistic.

Data retrieved from NASA's ASRS site 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.