According to Xinhua News Agency, Shanghai, January 23 (Reporter Jia Yuankun) On January 23, the second day of the first month of the lunar calendar, Zhang Hairong, a maintenance engineer of China Eastern Airlines, walked into the apron with the morning light. Here is his old friend - the large domestic aircraft C919 delivered to China Eastern Airlines. The first machine.

This is the first Spring Festival after the domestically produced large aircraft C919 entered the fleet of China Eastern Airlines.

The C919 has no flight missions during the Spring Festival holiday, and Zhang Hairong's main job is to conduct dynamic parking maintenance on the C919.

"Today is mainly to do power-on test and further inspection of APU function." Zhang Hairong said that he has entered the working state.

  After the holiday, the C919 will continue to conduct intensive verification flights. In order to ensure that the C919 maintains a good flight condition, dynamic parking maintenance requires a comprehensive inspection and maintenance of the aircraft. One of the important tasks is to conduct a power-on test every two days.

Maintenance engineers are called "aircraft doctors". Aircraft maintenance not only needs to be comprehensive, but also needs to be meticulous.

After the whole machine is powered on, Zhang Hairong and his colleagues have to test every button, device, and system, listen to the sound, check the brightness, and observe the status...a set of procedures is like "seeing, hearing, asking, and knowing".

  The walk-around inspection is a "compulsory course" for the C919's usual verification flight before and after the flight. When the aircraft is not flying, the walk-around inspection is also essential.

The maintenance engineers work in a group of 3 to 5 people every day, from the appearance of the entire fuselage to the landing gear, engine blades...every detail is spared to ensure that the aircraft can perform flights normally at any time.

  Aircraft operation is a systematic project for support personnel.

"Before each verification flight, in addition to the pre-flight inspection, we also need to be familiar with the remote stand for the shuttle bus operation and the near stand for the airport bridge operation. We are very excited every time we send the C919 off at different seats. Xu Lei, a maintenance engineer of China Eastern Airlines, said, "We also introduced the operation process to the airport, aviation fuel and other brothers who will jointly guarantee the C919 commercial flight in the future, and cooperated with the drills. We hope that the support team will grow stronger and stronger."

  In fact, in addition to the C919, China Eastern Airlines' new regional airliner ARJ21 is also included in the fleet of China Eastern Airlines. In order to ensure the operation of domestic aircraft, China Eastern Airlines has established a domestic aircraft maintenance department.

  In a few days, the C919 will usher in its first flight in the Year of the Rabbit. The crew will go to high-temperature, high-cold and high-humidity areas to continue to complete verification flight missions, conduct a comprehensive inspection of the aircraft's performance, and optimize the cabin according to the feedback information from the verification flight.