Partly for the reason RIM stated, we don't currently have the manpower
to match what iasa threw at the task.
We don't have the practical skills right now, due to having no involvement
in the 744 ife maintenance up till now.
Seems many of the 744 avionic lames have some limitation that they can't
certify for the maint anyhow. PLEASE CHECK YOUR EQ QUALS CAREFULLY.
It's going to take time to get comfortable with this dogs breakfast of a system,
till then, with the PIA, planets aligning, yes, it will be a major problem.