The U.S. aircraft register, updated daily
Parts · Airframe structure

Bpu

1 failure reports named the bpu in the last ten years, 4 since 1998, most often on the Airbus A330; the condition most often found was "mechanic error".

Reports by year

00011119981112025
Reports by year, as a table
reports
19981
19991
20111
20251

Which system the reports file it under last ten years

Reports by system, as a table
reports
Airframe structure1

Models most often reporting it last ten years

Models most reported, as a table
reports
Airbus A3301

How it failed the condition found, last ten years

mechanic error1
Conditions found, as a table
reports
mechanic error1

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.