The U.S. aircraft register, updated daily
Parts

Towershaft

0 failure reports named the towershaft in the last ten years, 16 since 1995.

Reports by year

0122319952002200822013
Reports by year, as a table
reports
19951
19961
19971
19991
20013
20021
20031
20051
20062
20071
20081
20132

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.