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A B757-200 was dispatched in non compliance with both engine N1 indicators displaying white exceedance numbers indicating an engine overspd event.
| Attributes | |
| ACN | 474000 |
| Time | |
| Date | 200005 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : dfw.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 474000 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : ni engine indicators other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure contributing factor : engineering procedure performance deficiency : repair performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
During a very hectic departure from ZZZ, we failed to notice that our new aircraft was showing the little white numbers under the N1 indicators that mean that at some time previous there may have been an engine overspd. There were several distrs that popped up during the preflight and departure time that may have contributed to our failure to notice this. I also have to admit that this is not something I have been including in my preflight scan. The items were called in to maintenance by us in XXX and written up in the logbook. Lesson learned.
Original NASA ASRS Text
Title: A B757-200 WAS DISPATCHED IN NON COMPLIANCE WITH BOTH ENG N1 INDICATORS DISPLAYING WHITE EXCEEDANCE NUMBERS INDICATING AN ENG OVERSPD EVENT.
Narrative: DURING A VERY HECTIC DEP FROM ZZZ, WE FAILED TO NOTICE THAT OUR NEW ACFT WAS SHOWING THE LITTLE WHITE NUMBERS UNDER THE N1 INDICATORS THAT MEAN THAT AT SOME TIME PREVIOUS THERE MAY HAVE BEEN AN ENG OVERSPD. THERE WERE SEVERAL DISTRS THAT POPPED UP DURING THE PREFLT AND DEP TIME THAT MAY HAVE CONTRIBUTED TO OUR FAILURE TO NOTICE THIS. I ALSO HAVE TO ADMIT THAT THIS IS NOT SOMETHING I HAVE BEEN INCLUDING IN MY PREFLT SCAN. THE ITEMS WERE CALLED IN TO MAINT BY US IN XXX AND WRITTEN UP IN THE LOGBOOK. LESSON LEARNED.
Data retrieved from NASA's ASRS site as of July 2007 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.