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A B737-700 was dispatched in non compliance with B737-300 nose gear tire and wheel assemblies installed inadvertently.
| Attributes | |
| ACN | 578105 |
| Time | |
| Date | 200303 |
| Day | Thu |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 578105 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 578104 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : inspection performance deficiency : installation performance deficiency : logbook entry performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Environmental Factor Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft X came in on thurs/apr/03 for an 'a' check and needed nose tires. All the 700 tire carts were being used, so I went to pick up a set of nose tires from the new stock. I picked up a wrong set of tires, a 300 series set instead of a 700. The tire was installed and a couple of days later I was notified by my supervisor that I installed the wrong tires and that it would be changed out as soon as possible at the next maintenance station. The nose wheels of a 700 and 300 aircraft are the same and at one time were interchangeable. It is not an excuse, I made a mistake and forgot that it is not interchangeable.
Original NASA ASRS Text
Title: A B737-700 WAS DISPATCHED IN NON COMPLIANCE WITH B737-300 NOSE GEAR TIRE AND WHEEL ASSEMBLIES INSTALLED INADVERTENTLY.
Narrative: ACFT X CAME IN ON THURS/APR/03 FOR AN 'A' CHK AND NEEDED NOSE TIRES. ALL THE 700 TIRE CARTS WERE BEING USED, SO I WENT TO PICK UP A SET OF NOSE TIRES FROM THE NEW STOCK. I PICKED UP A WRONG SET OF TIRES, A 300 SERIES SET INSTEAD OF A 700. THE TIRE WAS INSTALLED AND A COUPLE OF DAYS LATER I WAS NOTIFIED BY MY SUPERVISOR THAT I INSTALLED THE WRONG TIRES AND THAT IT WOULD BE CHANGED OUT ASAP AT THE NEXT MAINT STATION. THE NOSE WHEELS OF A 700 AND 300 ACFT ARE THE SAME AND AT ONE TIME WERE INTERCHANGEABLE. IT IS NOT AN EXCUSE, I MADE A MISTAKE AND FORGOT THAT IT IS NOT INTERCHANGEABLE.
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.