With regard to the 'Check A', when a Heli is located at an EASA 145 facility in Ireland, (I assume it is a European wide standard..hence EASA) there is a requirement for the actual 'Check A' (Daily) to be conducted by a
Lic. Engineer. A Pilot may be given authorization subject to a plethora of protocol requirements when he/she are away from the support facility and in accordance with EASA Part-145A30(j)(4).
Either way, the actual preflight can be made as comprehensive as the PIC deems to undertake. Reasonable expectations are that all concerned exercise
safety, caution and respect the duplication and redundancy checks, as is the industry norm.
Having said that, we are ALL capable of human error, great or small, and we
must learn from these events, regardless!
