The U.S. aircraft register, updated daily
Parts · Engine

Reduction Gb

7 failure reports named the reduction gb in the last ten years, 13 since 2005, most often on the Bell 212; the condition most often found was "making metal".

Reports by year

012452005201412024
Reports by year, as a table
reports
20051
20071
20081
20101
20121
20141
20195
20231
20241

Which system the reports file it under last ten years

Reports by system, as a table
reports
Engine7

Models most often reporting it last ten years

Models most reported, as a table
reports
Bell 2121
Convair 3401
Fairchild SA2271

How it failed the condition found, last ten years

making metal3auto shutdown1cracked1damaged1pressure loss1
Conditions found, as a table
reports
making metal3
auto shutdown1
cracked1
damaged1
pressure loss1

Engines most often reporting it

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.