Parts · Rotorcraft systems

Sprag

2 failure reports named the sprag in the last ten years, 7 since 2009, most often on the Mcdonnell Douglas Helicopter 600; the condition most often found was "making metal".

Reports by year

Reports by year, as a table

	reports
2009	4
2010	1
2016	1
2026	1

Which system the reports file it under last ten years

Rotorcraft systems2

Reports by system, as a table

	reports
Rotorcraft systems	2

Models most often reporting it last ten years

Mcdonnell Douglas Helicopter 6001Robinson R441

Models most reported, as a table

	reports
Mcdonnell Douglas Helicopter 600	1
Robinson R44	1

How it failed the condition found, last ten years

making metal1slipped1

Conditions found, as a table

	reports
making metal	1
slipped	1

Engines most often reporting it

Lycoming IO-540-AE1A5 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.