i think they need to check their airplanes properly, if they cant do it, ask someone to do for them.
Actually, it is HAECO that carries out the routine maintenance checks for them. (just for your information) By the way, HAECO is very famous for their high quality maintenance work.
I understand that it does seem at first sight to be CX
's fault for not doing the maintenance checks properly. However, all maintenance tasks that affect the safety of the aircraft are not set out by the airline itself, but by the manufacturer and the government authorities.
In these tasks, the interval for which it has to be done (every 300 flights, 30 days etc) are specified, together with the detail procedures, tooling required etc.... airlines can only carry out the tasks more frequently than specified.
In general, an airline will not miss those checks because:
1. Failure to comply with the specified maintenance requirement (e.g. carrying out a check one day after it is due) would lead to the aircraft being grounded until the checks are done.
2. Letting this to happen for a few times would lead to the whole company's aircraft being grounded (by the government)
Cathay Pacific complies to all the standards set out by the manufacturer and the authorities (which is the international standard followed by all airlines) and sometimes even exceed the requirements. The Civil Aviation Department monitors the whole system closely. Does failure to comply with requirement happens? Yes, but very very rarely, like once every few years. But that's not intentional. Just an occasional mix up in the engineering department. CX
treats these mistakes very seriously, and all such events have to be reported to the Civil Aviation Department.
So in conclusion- Cathay strictly follows the requirements that every airline follows. So if CX
doesn't do the maintenance sufficiciently, so do all other airlines. And if such a thing happens, its not the airline's fault. Its the manufacuturer (i.e. Boeing or Rolls Royce in this case) who decides when the maintenance needs to be done.
So why are the problems with CX
only? Well, first of all, its luck. Maintenance checks intervals are supposed to take care of most foreseeable problem that may occur. However, if you have learnt statistics, you will know that most things have a normal distribution, meaning that although a certain defect most probably occurs at a certain time (e.g. 5 years) there is still a slight chance that it happens long time before that. But is it possible to take care of that too? No. if you want the aircraft to have zero chance of a defect, then you have to do the checks every minute, and the aircraft won't be able to lift off the ground.
Second of all, its the utilization of the aircraft. Cathay's aircraft are very highly utilized when compared to most other airlines (this is where CX
earns the money from). This high utilization is due to careful planning of flight and maintenance schedules. With higher utilization, there will be more wear and tear, and its of no surprise those problems will sooner. Bear in mind that these events haven't happend before, thus Boeing or Rolls Royce might not have forseen it, and therefore the maintenance interval that they specified would not be sufficiently frequent.
With these incidents, the problems surfaced, and then people will know that the original maintenance requirements are not enough and will set up new requirements. These things occurs some day, and someone has to be the guinea pig. If CX
doesn't utilize their aircraft as much, then some other airlines might experience the problem first.
Therefore, its not strictly CX
's fault that these things happened.