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Two mechanics were informed they had not installed the required washers when they replaced both nose tires on a B767-300ER aircraft.
| Attributes | |
| ACN | 779979 |
| Time | |
| Date | 200803 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 779979 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 779980 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : briefing performance deficiency : installation performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
While removing and replacing aircraft X nose tires; I didn't realize the washers were missing when I removed the tires and I installed new tires without them. The tires have been replaced and new washers have been installed. I assumed the tires had been installed correctly the previous time they were changed; not realizing that the washers were missing.
Original NASA ASRS Text
Title: TWO MECHANICS WERE INFORMED THEY HAD NOT INSTALLED THE REQUIRED WASHERS WHEN THEY REPLACED BOTH NOSE TIRES ON A B767-300ER ACFT.
Narrative: WHILE REMOVING AND REPLACING ACFT X NOSE TIRES; I DIDN'T REALIZE THE WASHERS WERE MISSING WHEN I REMOVED THE TIRES AND I INSTALLED NEW TIRES WITHOUT THEM. THE TIRES HAVE BEEN REPLACED AND NEW WASHERS HAVE BEEN INSTALLED. I ASSUMED THE TIRES HAD BEEN INSTALLED CORRECTLY THE PREVIOUS TIME THEY WERE CHANGED; NOT REALIZING THAT THE WASHERS WERE MISSING.
Data retrieved from NASA's ASRS site as of May 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.