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B737-700 flight crew; during cruise; discover fuel to be 4500 pounds more than released for the flight.
| Attributes | |
| ACN | 685814 |
| Time | |
| Date | 200601 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sna.airport |
| State Reference | CA |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 240 flight time type : 5000 |
| ASRS Report | 685814 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Events | |
| Anomaly | maintenance problem : improper documentation non adherence : published procedure non adherence : company policies |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
I did not catch the fact that the weight of the aircraft was greater than the weight we expected for the noise abatement procedures. In cruise we were notified by dispatch via ACARS that sna operations had used 5000 pounds taxi fuel versus 500 pounds. As a result our actual aircraft weight was 4500 pounds more than what we thought it was at departure. The aircraft FMC weight was correct and our weight was under both release weight and performance limiting weight. The weight we used for the noise abatement procedure was wrong. Check FMC weight against closeout weight after entering zero fuel weight.
Original NASA ASRS Text
Title: B737-700 FLT CREW; DURING CRUISE; DISCOVER FUEL TO BE 4500 LBS MORE THAN RELEASED FOR THE FLT.
Narrative: I DID NOT CATCH THE FACT THAT THE WT OF THE ACFT WAS GREATER THAN THE WT WE EXPECTED FOR THE NOISE ABATEMENT PROCS. IN CRUISE WE WERE NOTIFIED BY DISPATCH VIA ACARS THAT SNA OPS HAD USED 5000 LBS TAXI FUEL VERSUS 500 LBS. AS A RESULT OUR ACTUAL ACFT WT WAS 4500 LBS MORE THAN WHAT WE THOUGHT IT WAS AT DEP. THE ACFT FMC WT WAS CORRECT AND OUR WT WAS UNDER BOTH RELEASE WT AND PERFORMANCE LIMITING WT. THE WT WE USED FOR THE NOISE ABATEMENT PROC WAS WRONG. CHK FMC WT AGAINST CLOSEOUT WT AFTER ENTERING ZERO FUEL WT.
Data retrieved from NASA's ASRS site as of January 2009 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.