Am I the only one here that thinks the criticism of Claudia's post is a shade harsh.
She makes some valid points, albeit a little insensitively.
As PIC I have also removed those cowlings in the past during post-flight inspections. The A109 A2+ I used to fly daily threw out so much oil from the exhausts that I used to clean under those cowls every few days - using rags! Nowhere have I seen it laid down that a pilot can't have possibly left a rag in a cowling. Claudia was defending the engineering organisation after someone else, rightly or wrongly, made an assumption that the fault must lie with engineers. Let's wait until the investigation is finished.
As for pilots not cocking up, I've never left a rag in a cowling, never left a cowling latch unfastened, never left a fuel cap off, never left a step out, never left the oil filler cap off, never exceeded Vne, never wet the bed as a child and never ever made a mistake whilst airborne...........I think you get my drift.
Healthy debate is great, but lets keep unfounded assumptions out of it.
JJ