post-accident examination of the helicopter revealed that the cyclic friction lock was not tightened, which contradicted with
the flight manual's shutdown checklist.
1) At an airport....not in the Bush or some remote site where shutting down would in itself pose a hazard.
2) Landed at the wrong fuel pump and did not reposition THEN Shutdown.
3) Failed to secure the Cyclic Stick Friction.
4) Failed to safely approach the helicopter.
How does this prove the Procedure cannot be done safely?
It certainly proves this particular event was not done safely.
If you want....we can expand this debate to include yet another discussion about how RFM's come to be written by manufacturers (with strong input from their Lawyers as well as their Test Pilots and Engineers).