As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG BURNING SMELL IN FLIGHTDECK AT START OF DECENT FROM FL190@300KIAS. LASTED 30 SEC. NO SMOKE NOTICED. SMELL RETURNED @7500 FT, ALSO 30 SEC. PERFORMED SMOKE/FUME EVENT DATA COLLECTION SHEET. COMPLIED WITH FIM 21-21-00 FIG 201 OPC GOOD AT THIS TIME SENT DATA SHEET TO MOTR GROUP.