Parts · Instruments and avionics

Ulb

1 failure reports named the ulb in the last ten years, 2 since 2014, most often on the Airbus A320; the condition most often found was "failed".

Reports by year

Reports by year, as a table

	reports
2014	1
2021	1

Which system the reports file it under last ten years

Instruments and avionics1

Reports by system, as a table

	reports
Instruments and avionics	1

Models most often reporting it last ten years

Airbus A3201

Models most reported, as a table

	reports
Airbus A320	1

How it failed the condition found, last ten years

failed1

Conditions found, as a table

	reports
failed	1

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.