As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ASH 6499 BFL-PHX, DURING APPROACH WHEN APU BLEEDS SWITCHED ON, SMOKE AND FUMES IN THE COCKPIT. CAPT DECLARED AN EMERGENCY. WHEN APU BLEEDS WERE SWITCHED OFF, SMOKE AND FUMES DISSIPATED. MX CHECKED APU AND BLEED SYSTEM. DEFERRED APU AND CONTINUES OPS 12/18/2003. MX REPLACED THE APU, OP CHECKS GOOD.