 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An A320 fuel leak was checked and found within dispatch limits but in the deferred item text the check limit box was not initialed. Required time inspection was missed.
| Attributes | |
| ACN | 650447 |
| Time | |
| Date | 200501 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air taxi |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : fcc technician : powerplant technician : airframe |
| Experience | maintenance technician : 23 |
| ASRS Report | 650447 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | other other : 4 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure contributing factor : manuals performance deficiency : non compliance with legal requirements performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
On jan/thu/05; I was working gate X when aircraft X flight #X (in) and flight #Y (out) reported a fuel leak by the flight crew just prior to departure. 3 of us in maintenance; a supervisor; lead mechanic; and I began the troubleshooting process to isolate the fuel leak. After receiving the fuel leak limits from my supervisor; the lead and I determined the leak rate after 10 mins per maintenance manual 28-11-00 pages 611; 612; and 613; procedure 4B. Repair key item #B. This information was stated in the text of the write-up during the signoff as well as required re-inspection dates; to include current hours. I was notified on mar/wed/05 at XA45 of a discrepancy made while creating and signing off of work order X. Conclusion and corrective action: from the information I have received regarding this matter on mar/tue/05 by my immediate supervisor; an oversight of an entry; an error was made in the 'check limit' area. The entry made was missed for an inspection for a 2 week period. On jan/tue/05 a directive was given to have the inspection completed. A simple entry error was made; then not detected by the maintenance controller or the flight line personnel down line for a period of time and eventually corrected. On mar/tue/05 the leaking fuel valve was replaced.
Original NASA ASRS Text
Title: AN A320 FUEL LEAK WAS CHKED AND FOUND WITHIN DISPATCH LIMITS BUT IN THE DEFERRED ITEM TEXT THE CHK LIMIT BOX WAS NOT INITIALED. REQUIRED TIME INSPECTION WAS MISSED.
Narrative: ON JAN/THU/05; I WAS WORKING GATE X WHEN ACFT X FLT #X (IN) AND FLT #Y (OUT) RPTED A FUEL LEAK BY THE FLT CREW JUST PRIOR TO DEP. 3 OF US IN MAINT; A SUPVR; LEAD MECH; AND I BEGAN THE TROUBLESHOOTING PROCESS TO ISOLATE THE FUEL LEAK. AFTER RECEIVING THE FUEL LEAK LIMITS FROM MY SUPVR; THE LEAD AND I DETERMINED THE LEAK RATE AFTER 10 MINS PER MAINT MANUAL 28-11-00 PAGES 611; 612; AND 613; PROC 4B. REPAIR KEY ITEM #B. THIS INFO WAS STATED IN THE TEXT OF THE WRITE-UP DURING THE SIGNOFF AS WELL AS REQUIRED RE-INSPECTION DATES; TO INCLUDE CURRENT HRS. I WAS NOTIFIED ON MAR/WED/05 AT XA45 OF A DISCREPANCY MADE WHILE CREATING AND SIGNING OFF OF WORK ORDER X. CONCLUSION AND CORRECTIVE ACTION: FROM THE INFO I HAVE RECEIVED REGARDING THIS MATTER ON MAR/TUE/05 BY MY IMMEDIATE SUPVR; AN OVERSIGHT OF AN ENTRY; AN ERROR WAS MADE IN THE 'CHK LIMIT' AREA. THE ENTRY MADE WAS MISSED FOR AN INSPECTION FOR A 2 WK PERIOD. ON JAN/TUE/05 A DIRECTIVE WAS GIVEN TO HAVE THE INSPECTION COMPLETED. A SIMPLE ENTRY ERROR WAS MADE; THEN NOT DETECTED BY THE MAINT CTLR OR THE FLT LINE PERSONNEL DOWN LINE FOR A PERIOD OF TIME AND EVENTUALLY CORRECTED. ON MAR/TUE/05 THE LEAKING FUEL VALVE WAS REPLACED.
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.