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A line mechanic reports finding a broken tie-bolt on an A320 #3 main tire wheel-half prior to departure. Mechanic notes that in the past month he has seen sheared tie-bolts on three airbus and two B757's; including one B757 with four bolts in a row. He has not seen that many broken bolts in two years.
| Attributes | |
| ACN | 894324 |
| Time | |
| Date | 201006 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Main Gear Wheel |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Powerplant Maintenance Airframe |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
A broken tie bolt was found on an A320 #3 main tire. Tire and wheel assembly were replaced; and airplane departed without incident. My concern is that in the past (approximately) one month; I have seen this five times. (Three airbus and two B757s). One of the B757 tire's had four broken [tie] bolts in a row. Before this string of events; I have not seen this on any airplane in (approximately) two years. [This is] a 'part failure.'
Original NASA ASRS Text
Title: A Line Mechanic reports finding a broken tie-bolt on an A320 #3 main tire wheel-half prior to departure. Mechanic notes that in the past month he has seen sheared tie-bolts on three Airbus and two B757's; including one B757 with four bolts in a row. He has not seen that many broken bolts in two years.
Narrative: A broken tie bolt was found on an A320 #3 main tire. Tire and wheel assembly were replaced; and airplane departed without incident. My concern is that in the past (approximately) one month; I have seen this five times. (Three Airbus and two B757s). One of the B757 tire's had four broken [tie] bolts in a row. Before this string of events; I have not seen this on any airplane in (approximately) two years. [This is] a 'part failure.'
Data retrieved from NASA's ASRS site as of April 2012 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.