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A B737-900 had nose gear tires replaced per pilot's report of vibrations. Also had scheduled nose tire check. Technician signed off both reports on same log page.
| Attributes | |
| ACN | 625327 |
| Time | |
| Date | 200407 |
| Day | Fri |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-900 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 625327 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other flight crewa other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
I was assigned to change both nose landing gear tires on aircraft X. This was due to a pilot deferral for nose gear vibration reported on log page abcdefg. I was also assigned a normal scheduled tire check. In addition to the tire check paperwork, I was given a non routine technician's write-up or job card requesting the tire change. After completing the work in accordance with the maintenance manual, I began to fill out the paperwork and documented the tire change on the same non routine technician's write-up or job card abcdklm, as I documented the tire check. After dispatching the aircraft, I entered the tire check log page (abcdkm) and I cleared the tire change deferral (log page abcdefg) in maintenance computer. It was then that I realized the non routine technician's write-up or job card called for a separate log entry for the tire change. Instead of combining the tire check and tire change information on the same log page, I should have cleared the tire change by generating a new log page which recorded the non routine technician's write-up or job card work separately. Additionally, I did not use the same signoff for the tire check non routine technician's write-up or job card as I did on its corresponding log page, ie, I signed the non routine technician's write-up or job card off as 'tire check accomplished, no maintenance action required.'
Original NASA ASRS Text
Title: A B737-900 HAD NOSE GEAR TIRES REPLACED PER PLT'S RPT OF VIBRATIONS. ALSO HAD SCHEDULED NOSE TIRE CHK. TECHNICIAN SIGNED OFF BOTH RPTS ON SAME LOG PAGE.
Narrative: I WAS ASSIGNED TO CHANGE BOTH NOSE LNDG GEAR TIRES ON ACFT X. THIS WAS DUE TO A PLT DEFERRAL FOR NOSE GEAR VIBRATION RPTED ON LOG PAGE ABCDEFG. I WAS ALSO ASSIGNED A NORMAL SCHEDULED TIRE CHK. IN ADDITION TO THE TIRE CHK PAPERWORK, I WAS GIVEN A NON ROUTINE TECHNICIAN'S WRITE-UP OR JOB CARD REQUESTING THE TIRE CHANGE. AFTER COMPLETING THE WORK IN ACCORDANCE WITH THE MAINT MANUAL, I BEGAN TO FILL OUT THE PAPERWORK AND DOCUMENTED THE TIRE CHANGE ON THE SAME NON ROUTINE TECHNICIAN'S WRITE-UP OR JOB CARD ABCDKLM, AS I DOCUMENTED THE TIRE CHK. AFTER DISPATCHING THE ACFT, I ENTERED THE TIRE CHK LOG PAGE (ABCDKM) AND I CLRED THE TIRE CHANGE DEFERRAL (LOG PAGE ABCDEFG) IN MAINT COMPUTER. IT WAS THEN THAT I REALIZED THE NON ROUTINE TECHNICIAN'S WRITE-UP OR JOB CARD CALLED FOR A SEPARATE LOG ENTRY FOR THE TIRE CHANGE. INSTEAD OF COMBINING THE TIRE CHK AND TIRE CHANGE INFO ON THE SAME LOG PAGE, I SHOULD HAVE CLRED THE TIRE CHANGE BY GENERATING A NEW LOG PAGE WHICH RECORDED THE NON ROUTINE TECHNICIAN'S WRITE-UP OR JOB CARD WORK SEPARATELY. ADDITIONALLY, I DID NOT USE THE SAME SIGNOFF FOR THE TIRE CHK NON ROUTINE TECHNICIAN'S WRITE-UP OR JOB CARD AS I DID ON ITS CORRESPONDING LOG PAGE, IE, I SIGNED THE NON ROUTINE TECHNICIAN'S WRITE-UP OR JOB CARD OFF AS 'TIRE CHK ACCOMPLISHED, NO MAINT ACTION REQUIRED.'
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.