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An A319 first officer reported fatigue induced errors as a result of inadequate rest on a four day scheduled flight sequence. The assignment included an 'all nighter' in the middle; which required circadian rhythm adaptation twice in the four days.
| Attributes | |
| ACN | 967846 |
| Time | |
| Date | 201109 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Experience | Flight Crew Last 90 Days 270 Flight Crew Total 14000 Flight Crew Type 4000 |
| Events | |
| Anomaly | Flight Deck / Cabin / Aircraft Event Other / Unknown |
Narrative:
My most recent scheduled flight sequence is not safe. There is a red eye in the middle of a four day sequence. As a result; it is impossible to get proper rest. I had two nights of sleep and two short naps in 4 days on this trip.on the last day; I was missing radio calls and forgetting if I accomplished required tasks. On final on the last leg; I forgot to select an ILS back-up for a visual approach. I was missing many tasks which are normal for my habit patterns. Any one of the many issues that I experienced on the last day (3 legs) of the flight sequence were minor; but taken in whole I now realize how tired I was. The worrisome part of this is that I did not realize it at the time.I do not think it is possible to safely change your circadian rhythm by 12 hours twice in 4 days. I had 4 different captains on this trip; so none of them experienced fatigue like me. I had flown with one of the captains before and he noticed and mentioned how tired I looked and that I was not my normal self. These types of trips should not be scheduled. Legal is not always safe.
Original NASA ASRS Text
Title: An A319 First Officer reported fatigue induced errors as a result of inadequate rest on a four day scheduled flight sequence. The assignment included an 'all nighter' in the middle; which required circadian rhythm adaptation twice in the four days.
Narrative: My most recent scheduled flight sequence is not safe. There is a red eye in the middle of a four day sequence. As a result; it is impossible to get proper rest. I had two nights of sleep and two short naps in 4 days on this trip.On the last day; I was missing radio calls and forgetting if I accomplished required tasks. On final on the last leg; I forgot to select an ILS back-up for a visual approach. I was missing many tasks which are normal for my habit patterns. Any one of the many issues that I experienced on the last day (3 legs) of the flight sequence were minor; but taken in whole I now realize how tired I was. The worrisome part of this is that I did not realize it at the time.I do not think it is possible to safely change your circadian rhythm by 12 hours twice in 4 days. I had 4 different Captains on this trip; so none of them experienced fatigue like me. I had flown with one of the Captains before and he noticed and mentioned how tired I looked and that I was not my normal self. These types of trips should not be scheduled. Legal is not always safe.
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.