Narrative:

We made a normal descent and approach into rjbb; we were both pretty tired and we were the only airplane on frequency. We briefed the 06L approach; including the noise abatement procedure - delaying both gear and flap extension. (Gear after 2500 feet; final flaps after 1500 feet) first leg; I had felt pretty good. Same with the departure out. Somewhere along the way to rjbb; I got pretty tired. I drank several cups of coffee; chased each one with a water bottle; and walked around a bit trying to liven up. Nothing seemed to help much. I got into a 'thousand yard stare' on approach and fought to stay engaged. I called 'stable' and 'cleared to land' at 500 feet; looking at the localizer and GS but not noticing the flaps were still only at 28. We landed with flaps at 28. Tired or not; I should have caught it. I should have realized we never ran the landing check below the line or kept the checklist in my hand to remind me or something. I should have caught it; and I let the captain down by being a poor monitor. We deviated from normal workflow and procedure in an attempt to comply with the noise abatement. We then got tired and distracted; and failed to pick up where we left off. We were tired. The sleep cycle swaps on this trip have been hard. I didn't see that until tonight. Having just a few more hours of layover before would have been nice- I tried as hard as I could to get more sleep; but I couldn't. Better attention to detail when doing my job. I still should have caught it.

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Original NASA ASRS Text

Title: MD-11 international flight crew landed in RJBB with flaps 28 instead of the normal flaps 35. Both reporters cited fatigue as a contributing factor.

Narrative: We made a normal descent and approach into RJBB; we were both pretty tired and we were the only airplane on frequency. We briefed the 06L approach; including the noise abatement procedure - delaying both gear and flap extension. (Gear after 2500 feet; final flaps after 1500 feet) First leg; I had felt pretty good. Same with the departure out. Somewhere along the way to RJBB; I got pretty tired. I drank several cups of coffee; chased each one with a water bottle; and walked around a bit trying to liven up. Nothing seemed to help much. I got into a 'thousand yard stare' on approach and fought to stay engaged. I called 'stable' and 'cleared to land' at 500 feet; looking at the LOC and GS but not noticing the flaps were still only at 28. We landed with flaps at 28. Tired or not; I should have caught it. I should have realized we never ran the landing check below the line or kept the checklist in my hand to remind me or something. I should have caught it; and I let the captain down by being a poor monitor. We deviated from normal workflow and procedure in an attempt to comply with the noise abatement. We then got tired and distracted; and failed to pick up where we left off. We were tired. The sleep cycle swaps on this trip have been hard. I didn't see that until tonight. Having just a few more hours of layover before would have been nice- I tried as hard as I could to get more sleep; but I couldn't. Better attention to detail when doing my job. I still should have caught it.

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.