Dear Chi Sin Gei Si
Accidents do not happen by themselves. I have been slinging (over 75,000 rotations in LAMAs, 205īs, 350īs...) in mountains up to very high altitudes without accident for more than 10 years. There are ways to avoid such as happened in HK, but only if you adopt a different look at things. It sounds to me like you are trying to find excuses. Go a different route if your does not work. Check your OM and change it, I think it is necessary. Ground crew should never be from another company and there must always be one at point A and one at point B - with radio contact to the pilot. If you canīt afford this, forget operating in this environment, it will cost you more than you gain.