The U.S. aircraft register, updated daily
Parts

Odor

0 failure reports named the odor in the last ten years, 894 since 1999.

Reports by year

048961441923199927415113919220041741592006
Reports by year, as a table
reports
19993
20002
200174
2002151
2003139
2004192
2005174
2006159

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.