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A B757-200 was dispatched in non compliance with ground spoilers #4 and #9 entered in logbook as deactivated per the MEL. Actual spoilers deactivated were ground spoilers #5 and #8.
| Attributes | |
| ACN | 434259 |
| Time | |
| Date | 199904 |
| Day | Tue |
| 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 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance lead technician : 42 |
| ASRS Report | 434259 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 34 |
| ASRS Report | 434260 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : non compliance with mel maintenance problem : improper documentation |
| Independent Detector | other other : maint station |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
On apr/xa/99 at approximately AB00, a mechanic was accomplishing a postflt walkaround on aircraft xyz. While approaching aft left wing, he noted a spoiler board slightly extended. Upon closer examination, it was determined that the jam nut on #5 spoiler actuator had come loose and permitted the actuator to loose the setting on the board. We then turned the actuator to a nominal setting and deactivated the #5 actuator and the corresponding actuator on the right wing in accordance with MEL. At this time some confusion occurred concerning the numbering of the actuators and the MEL was issued against actuators #4 and #9 rather than the ones that had been deactivated (#5 and #8). The aircraft was dispatched at this time. The follow-up performed by maintenance at the next station produced disparity in the MEL.
Original NASA ASRS Text
Title: A B757-200 WAS DISPATCHED IN NON COMPLIANCE WITH GND SPOILERS #4 AND #9 ENTERED IN LOGBOOK AS DEACTIVATED PER THE MEL. ACTUAL SPOILERS DEACTIVATED WERE GND SPOILERS #5 AND #8.
Narrative: ON APR/XA/99 AT APPROX AB00, A MECH WAS ACCOMPLISHING A POSTFLT WALKAROUND ON ACFT XYZ. WHILE APCHING AFT L WING, HE NOTED A SPOILER BOARD SLIGHTLY EXTENDED. UPON CLOSER EXAMINATION, IT WAS DETERMINED THAT THE JAM NUT ON #5 SPOILER ACTUATOR HAD COME LOOSE AND PERMITTED THE ACTUATOR TO LOOSE THE SETTING ON THE BOARD. WE THEN TURNED THE ACTUATOR TO A NOMINAL SETTING AND DEACTIVATED THE #5 ACTUATOR AND THE CORRESPONDING ACTUATOR ON THE R WING IN ACCORDANCE WITH MEL. AT THIS TIME SOME CONFUSION OCCURRED CONCERNING THE NUMBERING OF THE ACTUATORS AND THE MEL WAS ISSUED AGAINST ACTUATORS #4 AND #9 RATHER THAN THE ONES THAT HAD BEEN DEACTIVATED (#5 AND #8). THE ACFT WAS DISPATCHED AT THIS TIME. THE FOLLOW-UP PERFORMED BY MAINT AT THE NEXT STATION PRODUCED DISPARITY IN THE MEL.
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.