I would suggest best practice starts with a good pre-flight and post flight inspection by the person signing the tech log prior to flight !
That's the managements and lawyers get out clause 1
My comment refers to the requirements of the regulators. Best practice is to ensure that if it is a requirement to have different persons carrying out similar tasks (such as engine oil servicing or checking that the fan cowls are latched) then make it mandatory to certify the tech log as such.
Some operators just put it in the small print as a 'nice to do'.
I have to agree with Rimmer (I never thought I would say that again). Some very worried people around LHR tonight. There for the grace of...etc.
