Air Afrique,
If you're really concerned about safety, my suggestion to you is to patronize aero or dana. aero operates dash 8's and dana operates dornier 328 on the phc route. I suggest you lean more to dana bcos of the non-availability of seats on aero flights. You can check out both outfits at:
www.acn.aero &
www.dananig.com; you'll get all the details you need there.
cheers