One of the nice things about the IS-BAO manual is you can incorporate your own previous manual and SOPs. That being said we haven't done the audit and to be quite honest, I doubt we will.
Their manual takes into account many great factors that should be considered and for the most part we do. However, for a small department some of their requirements are just not feasable.
IMHO, their manual was written in part by a pilot, a psychologist and a lawyer. There are a few things in it that really make you scratch your head and wonder why.
I rewrote our manual using the IS-BAO "template" and it's working well. I think its improved the guidance of what we can and can't do. One of the problems we have with the certification is the requirement of recurring audits to make sure we stay to their standards. It's just an expense we're not willing to make for a piece of paper that says we're compliant to their standards. I had to make a few changes to our manual on areas we just couldn't follow from their recommendations. We're no less safe in doing so, but I wonder if we'd pass an audit by altering their recommendations.
I know of companies that have gone through the whole process and are pleased. I know more companies that share our opinion. I don't want to bad mouth IS-BAO because I believe they have some great ideas of making our industry safer. But standard to a multiple pilot GV fleet is quite different from a two pilot Citation operator.
I might get flamed by some since it's all in the name of safety and I won't fault you. If you look at the statistics, part 91 operations are getting safer. There will always be the cowboy's out there who will always do it their own way and they're the ones who would never have an IS-BAO certification anyway. I'm just not convinced of a "one certification" fits all program.
2000Flyer