China Aviation News Network: Recently, with the sound of "The test run is over, all inspections and tests are normal, turn off the engine." Hunan Airlines successfully completed the first replacement of the LEAP-1A engine. At this point, Hunan Airlines can independently complete the independent replacement of CFM56-5B and LEAP-1A engines, and can independently complete all aircraft maintenance work below fleet C inspection, marking an important breakthrough in Hunan Airlines in improving maintenance and assurance capabilities and expanding aircraft maintenance business.
Hunan Airlines' first LEAP-A launch replacement was successfully completed. In order to reduce the cost of LEAP-1A engine repair and maintenance, after sufficient research and analysis in the early stage, the Hunan Airlines Maintenance Engineering Department has formulated a tiered management plan for the LEAP engine fleet and decided to independently replace the left engine on the B-30AM.
If you want to do a good job, you must first sharpen your tools. As we all know, regular inspection and replacement of the dispatch are relatively difficult and long-term tasks in civil aviation maintenance. If a problem occurs, resulting in a series of subsequent delays, it will cause economic losses of millions to the company. Hunan Airlines attaches great importance to it, organizes it carefully, and makes careful arrangements to promote all preliminary preparations in an orderly manner. From screening and training of personnel qualifications to the use of special tools and equipment; from the pre-familiarity of the work card manual to verify the applicability and effectiveness of the aviation of various aviation materials; from the colouring of various missing parts for pre-issue, to the joint inspection of pre-issue, from the in-place oil seal of the engine to the disassembly and assembly of various major components; from the advance contact of the replacing hangar to the smooth entry of pre-issue and brackets; all of them are new challenges for the team.
At the same time, Hunan Airlines specially invited Airbus technical representatives, engine engineers and Changlong Aviation engine engineers to the scene for technical guidance, and maintained close contact with the company's relevant functional departments; specially selected elite soldiers and strong generals from various bases in Changsha and Wuxi to ensure that the launch replacement work is smooth.
resend time is tight and the tasks are heavy. After the start of construction, the staff of the replacement team shall perform the disconnection of plugs, oil pipes, and lines in accordance with the requirements of the manual steps. In the small space inside the engine fairing, the staff are meticulous and pay attention to every detail, fully demonstrating the rigorous work style and maintenance background of Hunan aviation maintenance personnel.
formulates a detailed work schedule, risk control table and tool and aviation material statistics table according to the aircraft parking plan, and actively communicates and coordinates with each other. At the scene of the change, everyone was full of fighting spirit and passion. From the huge hangar, there are often reports: "Hold the front and the back and the back and the back and the back without moving, 1...2..." Everyone obeys the orders and obeys unified commands. When encountering difficulties in the process, stop in time to seek a brief answer, and never do it blindly; if you are tired, drink a sip of water and rest; if your legs are numb, stand up and stamp your feet; if your waist is sore, stretch. On March 12, as the old engine slowly lifted down, the new engine slowly rose. After four days of hard work, the B-30AM aircraft was tested and tested normally, which marked the successful completion of the first replacement of the LEAP-1A engine.
Transmission replacement work site
Transmission replacement work site
Set sails together and sail through the wind and waves. The successful LEAP-1A launch replacement work has effectively improved Hunan Airlines' emergency support capabilities for A320NEO, laid a solid foundation for the subsequent safe operation of A320NEO, and provided experience. It is also a comprehensive inspection of Hunan Airlines' maintenance and management capabilities and levels. In the future, Hunan Airlines will continue to consolidate the construction of the "three basics" in accordance with the requirements of the Civil Aviation Administration, implement the "three awesomes", continuously improve the aircraft maintenance and support strength, expand its business scope, base itself on the present, and continue to move towards the goal of safety and efficiency. (Liu Yuhuai, Liu Yang, Yang Chao)
