am I correct to assume....
Quote:
better that a risk-assessed procedure (for that site) which minimises exposure, is used.
....means that there must be a prior approval from EASA for every such landing site?
SAS - I think you've taken a slight tangent. There is no prior approval required for each HEMS operating site (accident scene), except the overall HEMS approval that operators must have. Most landings are ad-hoc, unsurveyed, and assessed form overhead. I think JimL meant that as one cannot adhere to PC1 in an unimproved/unsurveyed site (sloped ground, uneven surface etc), flying the CAT A procedures doesn't offer the protection that it should. In some circumstances it might be safer, and is allowable under PC2 to deviate from the CAT A procedure and fly something which is more suitable (with ones own assessment of the site). Given the minimum daytime HEMS site size of 2Dx2D, and Night 2Dx4D, it might also be impossible to fly the CAT A procedure due to surrounding obstructions.
Is my perception correct......that under EASA Rules....only pre-selected and pre-approved landing sites are permissible?
No. Ad-hoc, unsurveyed landings are permissible and routinely carried out by day and night.
Or....can the Fire Brigade block off a section of roadway or designate a cow pasture or clearing on the edge of the road as a landing site and the helicopter operate to that particular site using a pre=approved procedure?
No need, so long as you have coordinated the stopping of traffic and the site is safe you can land