Parts · Instruments and avionics

Isis

11 failure reports named the isis in the last ten years, 28 since 2010, most often on the Airbus A321; the condition most often found was "failed".

Reports by year

Reports by year, as a table

	reports
2010	2
2011	3
2012	4
2013	1
2014	7
2017	1
2018	2
2023	2
2024	1
2025	3
2026	2

Which system the reports file it under last ten years

Instruments and avionics11

Reports by system, as a table

	reports
Instruments and avionics	11

Models most often reporting it last ten years

Airbus A3213Airbus A3202Airbus A3301Bombardier BD-100 Challenger 300 and 3501Bombardier DHC-8 Dash 8 and Q4001Embraer EMB-135 ERJ 135 and Legacy1Embraer EMB-145 ERJ 1451Embraer ERJ 190 E190 and E1951

Models most reported, as a table

	reports
Airbus A321	3
Airbus A320	2
Airbus A330	1
Bombardier BD-100 Challenger 300 and 350	1
Bombardier DHC-8 Dash 8 and Q400	1
Embraer EMB-135 ERJ 135 and Legacy	1
Embraer EMB-145 ERJ 145	1
Embraer ERJ 190 E190 and E195	1

How it failed the condition found, last ten years

failed8faulted1inoperative1malfunctioned1

Conditions found, as a table

	reports
failed	8
faulted	1
inoperative	1
malfunctioned	1

Engines most often reporting it

CFM International CFM56-5B4/3 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.