Unless you have some sort of lien on the a/c, I suspect you would be on very shaky legal ground. A maintenance organisation or individual engineer has resort to mechanic's lien. In a bankruptcy, the trustee assumes control over all assets prior to liquidation and distribution to debt holders. Unpaid wages are usually subordinate to secured debt, i.e. there may already be a mortgage on the a/c.
However if the owner has you fly said a/c to some remote location, there is nothing to prevent you from refusing to fly a/c home until unpaid wages are in your pocket
