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A B737-300 was dispatched in non compliance with #4 main wheel and tire assembly installed with the wheel spacer missing.
| Attributes | |
| ACN | 542816 |
| Time | |
| Date | 200203 |
| Day | Sun |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Rain |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 542816 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : inspection authority technician : powerplant technician : airframe |
| ASRS Report | 542817 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : weather contributing factor : lighting performance deficiency : non compliance with legal requirements performance deficiency : testing performance deficiency : inspection performance deficiency : installation |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Weather Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Upon walkaround of aircraft X, I found #4 tire had chords showing. I proceeded to print up maintenance manual paperwork. After collecting all tools and maintenance manual requirements, I began to remove the tire. It was raining and windy. There was a large puddle under the #4 tire. When I removed the nut, the spacer must have been stuck on the tire and when I removed the tire the spacer must have fallen into the puddle. Because the APU was running and I had on a hood and earmuffs, I didn't hear the spacer fall. The lighting was very poor thereby making it hard to see the spacer in the puddle.
Original NASA ASRS Text
Title: A B737-300 WAS DISPATCHED IN NON COMPLIANCE WITH #4 MAIN WHEEL AND TIRE ASSEMBLY INSTALLED WITH THE WHEEL SPACER MISSING.
Narrative: UPON WALKAROUND OF ACFT X, I FOUND #4 TIRE HAD CHORDS SHOWING. I PROCEEDED TO PRINT UP MAINT MANUAL PAPERWORK. AFTER COLLECTING ALL TOOLS AND MAINT MANUAL REQUIREMENTS, I BEGAN TO REMOVE THE TIRE. IT WAS RAINING AND WINDY. THERE WAS A LARGE PUDDLE UNDER THE #4 TIRE. WHEN I REMOVED THE NUT, THE SPACER MUST HAVE BEEN STUCK ON THE TIRE AND WHEN I REMOVED THE TIRE THE SPACER MUST HAVE FALLEN INTO THE PUDDLE. BECAUSE THE APU WAS RUNNING AND I HAD ON A HOOD AND EARMUFFS, I DIDN'T HEAR THE SPACER FALL. THE LIGHTING WAS VERY POOR THEREBY MAKING IT HARD TO SEE THE SPACER IN THE PUDDLE.
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.