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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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An aircraft inspector at a contract maintenance repair station reports that a sequence of task card steps had been broken due to a lack of proper tooling during installation of a V2500 engine on a customer's A320 aircraft. He missed a required step to verify the proper installation of a retainer assembly at the forward engine mount.
| Attributes | |
| ACN | 1088881 |
| Time | |
| Date | 201301 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Powerplant Installation |
| Person 1 | |
| Qualification | Maintenance Powerplant Maintenance Inspection Authority Maintenance Airframe |
| Experience | Maintenance Inspector 2 Maintenance Technician 33 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
As a quality control (qc) inspector at contract maintenance repair station X; I inspected the installation of an [iae] V2500 series engine on customer X's airbus A320-200 aircraft. I failed to verify the proper installation of a retainer assembly for the forward engine mount. Reference customer X's A320 task card 71-00-20; item-19; step-3. The step by step sequence of item-19 is broken because the engine hoist assembly has to be removed to get the final torque of the mount bolts. With proper tooling; the sequence of this task would not have been broken; and this critical step would not have been missed. As an inspector with rii authority; I should have been aware to the reason for this deviation in the task card. After investigation; it was found that this is a standard deviation for repair station X. [This] repair station is in the process of correcting this process. I don't recall this event that happened in january; 2013. At times there is only one inspector on the floor with three aircraft in maintenance. This may have also been a factor. In the future I will be more diligent in my duties as an aircraft maintenance inspector.
Original NASA ASRS Text
Title: An Aircraft Inspector at a Contract Maintenance Repair Station reports that a sequence of Task Card steps had been broken due to a lack of proper tooling during installation of a V2500 Engine on a Customer's A320 aircraft. He missed a required step to verify the proper installation of a retainer assembly at the Forward Engine Mount.
Narrative: As a Quality Control (QC) Inspector at Contract Maintenance Repair Station X; I inspected the installation of an [IAE] V2500 series engine on Customer X's Airbus A320-200 aircraft. I failed to verify the proper installation of a Retainer Assembly for the Forward Engine Mount. Reference Customer X's A320 Task Card 71-00-20; Item-19; Step-3. The step by step sequence of Item-19 is broken because the Engine Hoist Assembly has to be removed to get the final torque of the mount bolts. With proper tooling; the sequence of this task would not have been broken; and this critical step would not have been missed. As an Inspector with RII authority; I should have been aware to the reason for this deviation in the Task Card. After investigation; it was found that this is a standard deviation for Repair Station X. [This] Repair Station is in the process of correcting this process. I don't recall this event that happened in January; 2013. At times there is only one Inspector on the floor with three aircraft in maintenance. This may have also been a factor. In the future I will be more diligent in my duties as an Aircraft Maintenance Inspector.
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.