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B777 international captain reported extreme fatigue was a factor in overshooting a cleared altitude on leg two following a 10:31 first leg.
| Attributes | |
| ACN | 1242307 |
| Time | |
| Date | 201502 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZZ.ARTCC |
| State Reference | FO |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Altitude Overshoot Deviation - Procedural Clearance |
Narrative:
On climb out on our second leg (after flying 10hrs31min) we were given a 5;000 feet level off. The aircraft over shot by seven hundred feet. We began a descent back to 5;000 feet. It was only a momentary over shoot. The pilot monitoring called out the deviation. There was no contact about the over shoot with ATC. We were all so tired that no one really cared. 2nd leg of a 12 hour flight is unsat and unsafe. We were dangerous the rest of the flight. In hind sight I should have stopped the jet at the original destination.we were fatigued and unsafe due to our schedule and time zone changes.do not schedule multiple legs and use 2 extra pilots to justify over 12. It is impossible to get proper rest when the legs are broken up with 10 hours and 2 hours. 8 time zones with an arrival that is at the bottom of our base time (6:00am).
Original NASA ASRS Text
Title: B777 international Captain reported extreme fatigue was a factor in overshooting a cleared altitude on leg two following a 10:31 first leg.
Narrative: On climb out on our second leg (after flying 10hrs31min) we were given a 5;000 feet level off. The aircraft over shot by seven hundred feet. We began a descent back to 5;000 feet. It was only a momentary over shoot. The pilot monitoring called out the deviation. There was no contact about the over shoot with ATC. We were all so tired that no one really cared. 2nd leg of a 12 hour flight is unsat and unsafe. We were dangerous the rest of the flight. In hind sight I should have stopped the jet at the original destination.We were fatigued and unsafe due to our schedule and time zone changes.Do not schedule multiple legs and use 2 extra pilots to justify over 12. It is impossible to get proper rest when the legs are broken up with 10 hours and 2 hours. 8 time zones with an arrival that is at the bottom of our base time (6:00am).
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.