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A B757-200 pilot detected a fuel totalizer and calculated quantity difference. A similar previous log entry may not have been properly cleared.
| Attributes | |
| ACN | 720678 |
| Time | |
| Date | 200612 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | intersection : rumps |
| State Reference | NV |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa.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 |
| ASRS Report | 720678 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| ASRS Report | 720679 |
| Events | |
| Anomaly | aircraft equipment problem : less severe |
| Independent Detector | aircraft equipment other aircraft equipment : fuel system other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other |
| Supplementary | |
| Problem Areas | Company Aircraft Maintenance Human Performance |
| Primary Problem | Aircraft |
Narrative:
En route; notice that fuel totalizer and calculated fuel were diverging. Reviewed logbook for history of fuel totalizer problems. Found item #xx and other previous write-ups on fuel totalizer. Item #xx took place in ZZZ; was deferred; then voided and a balancing write-off of #xx was inserted that maintenance in ZZZ said plane was ok for service. This balancing write-off was also voided. At this point I did not know if #xx was ever cleared by maintenance and that I had taken an airplane with an open item. The airplane had flown 7 times from the item dated dec/sat/06. Called maintenance person on duty; said he was involved in the ZZZ maintenance event. Said the item was cleared for service. I did not agree since there was no balancing entry. All were voided. Upon arrival; maintenance said they showed the item cleared in their computer.
Original NASA ASRS Text
Title: A B757-200 PLT DETECTED A FUEL TOTALIZER AND CALCULATED QUANTITY DIFFERENCE. A SIMILAR PREVIOUS LOG ENTRY MAY NOT HAVE BEEN PROPERLY CLRED.
Narrative: ENRTE; NOTICE THAT FUEL TOTALIZER AND CALCULATED FUEL WERE DIVERGING. REVIEWED LOGBOOK FOR HISTORY OF FUEL TOTALIZER PROBS. FOUND ITEM #XX AND OTHER PREVIOUS WRITE-UPS ON FUEL TOTALIZER. ITEM #XX TOOK PLACE IN ZZZ; WAS DEFERRED; THEN VOIDED AND A BALANCING WRITE-OFF OF #XX WAS INSERTED THAT MAINT IN ZZZ SAID PLANE WAS OK FOR SVC. THIS BALANCING WRITE-OFF WAS ALSO VOIDED. AT THIS POINT I DID NOT KNOW IF #XX WAS EVER CLRED BY MAINT AND THAT I HAD TAKEN AN AIRPLANE WITH AN OPEN ITEM. THE AIRPLANE HAD FLOWN 7 TIMES FROM THE ITEM DATED DEC/SAT/06. CALLED MAINT PERSON ON DUTY; SAID HE WAS INVOLVED IN THE ZZZ MAINT EVENT. SAID THE ITEM WAS CLRED FOR SVC. I DID NOT AGREE SINCE THERE WAS NO BALANCING ENTRY. ALL WERE VOIDED. UPON ARR; MAINT SAID THEY SHOWED THE ITEM CLRED IN THEIR COMPUTER.
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.