More than 25 years of experience as an Aircraft Maintenance Engineer in Avionics system. Start coverage (to name a few of them) from Boeing 707, 737, 747, 757,767,777 to B744, ; Lockheed L1011; Airbus A300, A320, A330, A340; up to now still have working experience on B747-8, B787, A300-600 & A350 too. Others experience: 10 years as Aircraft Maintenance controller in Line maintenance section in CLK Airport HKSAR one of the world's busiest airports have handled 71,541,000 Passengers and 420,000 flight Movements in 2019. Remaining 10 years working in Heavy Maintenance section in between Line maintenance and Base maintenance as Maintenance Controller handling large scale of urgent repair such as engine change, APU change, gear change, Tank entry , large piece of flight control surface R/I etc and other planned maintenance schedule checks of varies Airlines such as OPSC of Cathay Pacific, A checks of Atlas Air, A checks of United Airline , A checks of NCA etc. and During pandamic all the long parking deactivation and activation.