The U.S. aircraft register, updated daily
Parts · Flight controls

Ratio Changer

1 failure reports named the ratio changer in the last ten years, 5 since 1996, most often on the Boeing 757; the condition most often found was "warning message".

Reports by year

000111199611112022
Reports by year, as a table
reports
19961
20111
20131
20151
20221

Which system the reports file it under last ten years

Reports by system, as a table
reports
Flight controls1

Models most often reporting it last ten years

Models most reported, as a table
reports
Boeing 7571

How it failed the condition found, last ten years

warning message1
Conditions found, as a table
reports
warning message1

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.