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A line mechanic reports about an A320 right main landing gear (medium large transport) suddenly releasing and dropping 10' to 12' inches; uncommanded; from an omni arm landing gear support equipment. They were rotating the medium large transport to a horizontal position using the omni arm device to facilitate seal replacement.
| Attributes | |
| ACN | 1057978 |
| Time | |
| Date | 201210 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Main Gear |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Powerplant Maintenance Airframe |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Employee mechanic Y and I were conducting maintenance on the right-hand main landing gear of an A320 aircraft while the main landing gear was mounted on the omni-arm. We were articulating the landing gear to a near horizontal position to facilitate seal replacement. While rotating it to a horizontal position the omni-arm suddenly released from its rotating position and suddenly dropped without command 10'-12' inches. Employees mechanic Y; Z and supervisor observed this mishap event.
Original NASA ASRS Text
Title: A Line Mechanic reports about an A320 right Main Landing Gear (MLG) suddenly releasing and dropping 10' to 12' inches; uncommanded; from an Omni Arm landing gear support equipment. They were rotating the MLG to a horizontal position using the Omni Arm device to facilitate seal replacement.
Narrative: Employee Mechanic Y and I were conducting maintenance on the right-hand main landing gear of an A320 aircraft while the main landing gear was mounted on the Omni-arm. We were articulating the landing gear to a near horizontal position to facilitate seal replacement. While rotating it to a horizontal position the Omni-Arm suddenly released from its rotating position and suddenly dropped without command 10'-12' inches. Employees Mechanic Y; Z and Supervisor observed this mishap event.
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.