The U.S. aircraft register, updated daily
Parts

Closed Circuit

No failure report names the closed circuit. 2 FAA approvals let 1 company make a replacement closed circuit, Hr Textron INC holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a closed circuit and sell it as an approved part for the models named. These are the companies holding such approvals for a closed circuit:

For these models most: Bell 206 JetRanger and LongRanger (1), Bell 205 (1), Bell 204 (1).

MakerPartReplacesFitsGrantedStatus
Hr Textron INCClosed Circuit Refueling Receiver 750000-5Modification PartBell 204B (S/N 2026 and subsequent) 205A,...2004-09-28current
Hr Textron INCClosed Circuit Refueling Receiver 750000-15Modification PartBell 206B, 206L-1, 206L-31994-01-26current

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.