The U.S. aircraft register, updated daily
Parts · Instruments and avionics

Combining Box

1 failure reports named the combining box in the last ten years, 5 since 2001, most often on the Boeing 737; the condition most often found was "chipped".

Reports by year

00122220011112016
Reports by year, as a table
reports
20012
20021
20151
20161

Which system the reports file it under last ten years

Reports by system, as a table
reports
Instruments and avionics1

Models most often reporting it last ten years

Models most reported, as a table
reports
Boeing 7371

How it failed the condition found, last ten years

chipped1
Conditions found, as a table
reports
chipped1

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.