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The B757-200 abnormal checklist for a single center fuel tank boost pump failure results in a fuel imbalance because the crossfeed is not opened. The checklist needs redesign.
| Attributes | |
| ACN | 792333 |
| Time | |
| Date | 200806 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : zzz.artcc |
| State Reference | US |
| Altitude | msl single value : 37000 |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 160 flight time total : 14000 flight time type : 9000 |
| ASRS Report | 792333 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : fuel pump low pressure light other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication |
| Primary Problem | Chart Or Publication |
| Situations | |
| Publication | B757 Abnormal Chklist |
Narrative:
During cruise; left center boost pump low pressure light illuminated with associated EICAS message. Left and right fuel tanks were full and center tank had approximately 10000 pounds. Reconfigured fuel panel in accordance with applicable irregular procedure but realized procedure would result in lateral out of balance situation in that the xfeed valve was not open and only the right center boost pump was operating. Opened the xfeed valve so fuel to both engines could be supplied by the center tank. Contacted maintenance to discuss situation who agreed with our assessment. Continued to destination with left center boost pump turned off. The irregular procedure for center boost pump low pressure lights needs to be reviewed and corrected.
Original NASA ASRS Text
Title: THE B757-200 ABNORMAL CHECKLIST FOR A SINGLE CENTER FUEL TANK BOOST PUMP FAILURE RESULTS IN A FUEL IMBALANCE BECAUSE THE CROSSFEED IS NOT OPENED. THE CHECKLIST NEEDS REDESIGN.
Narrative: DURING CRUISE; L CTR BOOST PUMP LOW PRESSURE LIGHT ILLUMINATED WITH ASSOCIATED EICAS MESSAGE. L AND R FUEL TANKS WERE FULL AND CTR TANK HAD APPROX 10000 LBS. RECONFIGURED FUEL PANEL IN ACCORDANCE WITH APPLICABLE IRREGULAR PROC BUT REALIZED PROC WOULD RESULT IN LATERAL OUT OF BAL SITUATION IN THAT THE XFEED VALVE WAS NOT OPEN AND ONLY THE R CTR BOOST PUMP WAS OPERATING. OPENED THE XFEED VALVE SO FUEL TO BOTH ENGS COULD BE SUPPLIED BY THE CTR TANK. CONTACTED MAINT TO DISCUSS SITUATION WHO AGREED WITH OUR ASSESSMENT. CONTINUED TO DEST WITH L CTR BOOST PUMP TURNED OFF. THE IRREGULAR PROC FOR CTR BOOST PUMP LOW PRESSURE LIGHTS NEEDS TO BE REVIEWED AND CORRECTED.
Data retrieved from NASA's ASRS site as of May 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.