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A long range air carrier flight crew reported the failure of their efb to recognize and advise of a greater than 10;000 pound discrepancy between the planned and actual payloads. Decreasing fuel scores dictated a diversion for fuel.
| Attributes | |
| ACN | 933115 |
| Time | |
| Date | 201102 |
| Local Time Of Day | 1201-1800 |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Electronic Flt Bag (EFB) |
| Person 1 | |
| Function | First Officer |
| Person 2 | |
| Function | First Officer |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Weight And Balance Inflight Event / Encounter Fuel Issue |
Narrative:
We inadvertently took off with more payload than what was flight planned for. It was first noticed in level cruise flight enroute to the destination while monitoring fuel scores. We noticed decreasing trend in fuel scores and the CDU crz page agreed with the negative trend.in the normal process of flight preparation the efb failed to notice the difference between the planned payload and the payload from the load manifest by the plus or minus 10;000lb standard. Despite all the groups of people and electronics involved; no one caught this discrepancy. The efb produced a normal weight and balance card and takeoff data card. We contacted dispatch and mutually agreed that a diversion to an airport other than planned destination or alternate was necessary for a safe outcome. We need to reprogram the efb weight and balance portion of the performance menu to identify and catch a payload discrepancy of plus or minus 10;000lbs.
Original NASA ASRS Text
Title: A long range air carrier flight crew reported the failure of their EFB to recognize and advise of a greater than 10;000 pound discrepancy between the planned and actual payloads. Decreasing fuel scores dictated a diversion for fuel.
Narrative: We inadvertently took off with more payload than what was flight planned for. It was first noticed in level cruise flight enroute to the destination while monitoring fuel scores. We noticed decreasing trend in fuel scores and the CDU CRZ page agreed with the negative trend.In the normal process of flight preparation the EFB failed to notice the difference between the planned payload and the payload from the load manifest by the plus or minus 10;000lb standard. Despite all the groups of people and electronics involved; no one caught this discrepancy. The EFB produced a normal weight and balance card and takeoff data card. We contacted Dispatch and mutually agreed that a diversion to an airport other than planned destination or alternate was necessary for a safe outcome. We need to reprogram the EFB weight and balance portion of the performance menu to identify and catch a payload discrepancy of plus or minus 10;000lbs.
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.