Parts · Instruments and avionics

Ehsi

3 failure reports named the ehsi in the last ten years, 13 since 1995, most often on the Airbus Helicopters EC-135 now H135; the condition most often found was "faulted".

Reports by year

Reports by year, as a table

	reports
1995	2
1996	2
1997	2
1998	3
1999	1
2025	1
2026	2

Which system the reports file it under last ten years

Instruments and avionics3

Reports by system, as a table

	reports
Instruments and avionics	3

Models most often reporting it last ten years

Airbus Helicopters EC-135 now H1351Boeing 7671Pilatus PC-121

Models most reported, as a table

	reports
Airbus Helicopters EC-135 now H135	1
Boeing 767	1
Pilatus PC-12	1

How it failed the condition found, last ten years

faulted1unserviceable1wrong part1

Conditions found, as a table

	reports
faulted	1
unserviceable	1
wrong part	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.