Parts · Instruments and avionics

Driver Unit

4 failure reports named the driver unit in the last ten years, 4 since 2025, most often on the Bombardier CL-600 Challenger and CRJ; the condition most often found was "faulted".

Reports by year

Reports by year, as a table

	reports
2025	2
2026	2

Which system the reports file it under last ten years

Instruments and avionics2Airframe structure1Heating, ice protection and utility systems1

Reports by system, as a table

	reports
Instruments and avionics	2
Airframe structure	1
Heating, ice protection and utility systems	1

Models most often reporting it last ten years

Bombardier CL-600 Challenger and CRJ2Boeing 7671

Models most reported, as a table

	reports
Bombardier CL-600 Challenger and CRJ	2
Boeing 767	1

How it failed the condition found, last ten years

faulted3failed1

Conditions found, as a table

	reports
faulted	3
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.