The U.S. aircraft register, updated daily
Parts

Isis Unit

0 failure reports named the isis unit in the last ten years, 7 since 2008.

Reports by year

0122312008332011
Reports by year, as a table
reports
20081
20103
20113

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.