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An A320 was dispatched in non compliance with the yellow hydraulic reservoir low level switch deferred per the MEL but the wrong reservoir connector was disconnected.
| Attributes | |
| ACN | 635304 |
| Time | |
| Date | 200410 |
| Day | Fri |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : preflight |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 21 |
| ASRS Report | 635304 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician oversight : coordinator |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : published procedure non adherence : far |
| Independent Detector | aircraft equipment other aircraft equipment : yellow hyd qty indicator other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : work cards contributing factor : schedule pressure contributing factor : manuals performance deficiency : non compliance with legal requirements performance deficiency : logbook entry performance deficiency : testing |
| Supplementary | |
| Problem Areas | Chart Or Publication Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
During deferral of yellow hydraulic reservoir low level switch on aircraft. Aircraft at gate just prior to departure, using air carrier MEL card 2930JJ, the reservoir level 'indication' connector may have been disconnected by mistake instead of the 'low level switch' connector. After flight departed line maintenance department, notified by me, created log write-up to verify correct connector was disconnected. Air carrier MEL card and manuals were not a factor in possible misident of connector. Main contributing factor was 'hurried' atmosphere of flight operations.
Original NASA ASRS Text
Title: AN A320 WAS DISPATCHED IN NON COMPLIANCE WITH THE YELLOW HYD RESERVOIR LOW LEVEL SWITCH DEFERRED PER THE MEL BUT THE WRONG RESERVOIR CONNECTOR WAS DISCONNECTED.
Narrative: DURING DEFERRAL OF YELLOW HYD RESERVOIR LOW LEVEL SWITCH ON ACFT. ACFT AT GATE JUST PRIOR TO DEP, USING ACR MEL CARD 2930JJ, THE RESERVOIR LEVEL 'INDICATION' CONNECTOR MAY HAVE BEEN DISCONNECTED BY MISTAKE INSTEAD OF THE 'LOW LEVEL SWITCH' CONNECTOR. AFTER FLT DEPARTED LINE MAINT DEPT, NOTIFIED BY ME, CREATED LOG WRITE-UP TO VERIFY CORRECT CONNECTOR WAS DISCONNECTED. ACR MEL CARD AND MANUALS WERE NOT A FACTOR IN POSSIBLE MISIDENT OF CONNECTOR. MAIN CONTRIBUTING FACTOR WAS 'HURRIED' ATMOSPHERE OF FLT OPS.
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.