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Three aircraft maintenance technicians (amts) report that four bushings had separated from the left main landing gear (medium large transport) axle flange when the # 2 inboard brake was removed. The bushings had remained stuck to the removed brake assembly alignment pins and were not noticed until the A320 aircraft had departed.
| Attributes | |
| ACN | 1029415 |
| Time | |
| Date | 201208 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Wheels/Tires/Brakes |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Powerplant Maintenance Airframe |
| Person 2 | |
| Function | Technician |
| Qualification | Maintenance Powerplant Maintenance Airframe |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
Removal and replacement (right/right) of # 2 brake was difficult to remove from the [left main] landing gear (medium large transport) axle. I; mechanic X; inspected the axle sleeve; but found no obvious damage. We installed a serviceable brake assembly and wheel assembly. One of the mechanic's working on it went upstairs; signed the logbook. After a few hours in; I received a phone call from one of the mechanic's working on the brake to let me know that he and a supervisior looked over the unserviceable brake and noticed four axle bushings for the brake alignment studs were stuck to the [removed] brake. I talked with the ZZZ1 supervisor and let him know what had happend. He told me that he was already aware of it; and it would be addressed. Alignment pin bushings seperated from axle flange. Recommend inspection of axle protective sleeve and axle hub and bushings for proper installation. Thru flight operation.
Original NASA ASRS Text
Title: Three Aircraft Maintenance Technicians (AMTs) report that four bushings had separated from the left Main Landing Gear (MLG) Axle Flange when the # 2 Inboard Brake was removed. The bushings had remained stuck to the removed Brake Assembly alignment pins and were not noticed until the A320 aircraft had departed.
Narrative: Removal and Replacement (R/R) of # 2 Brake was difficult to remove from the [left Main] Landing Gear (MLG) axle. I; Mechanic X; inspected the axle sleeve; but found no obvious damage. We installed a Serviceable Brake Assembly and Wheel Assembly. One of the Mechanic's working on it went upstairs; signed the Logbook. After a few hours in; I received a phone call from one of the Mechanic's working on the brake to let me know that he and a Supervisior looked over the Unserviceable brake and noticed four axle bushings for the Brake Alignment studs were stuck to the [removed] brake. I talked with the ZZZ1 Supervisor and let him know what had happend. He told me that he was already aware of it; and it would be addressed. Alignment pin bushings seperated from axle flange. Recommend Inspection of Axle Protective Sleeve and Axle Hub and Bushings for proper installation. Thru flight operation.
Data retrieved from NASA's ASRS site as of July 2013 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.