As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3123 NOTED SLIGHT BURNING SMELL. TURNED OFF APU BLEED TO TROUBLESHOOT AND APU AUTO-SHUT DOWN WITHIN A FEW SECONDS. CORRECTIVE ACTION: OUND SNOW AND ICE IN APU INLET. REMOVED SNOW AND ICE AND OPS NORMAL AT THIS TIME. IAW A319 AMM 49-00. NO BURNING SMELLS NOTED AT THIS TIME. (5562334)