The U.S. aircraft register, updated daily
Parts

Double Span

No failure report names the double span. 1 FAA approvals let 1 company make a replacement double span, Aaxico Technical Services holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
Aaxico Technical ServicesDouble Span Recessed Lock Plate LK86558ATSLK86558Rolls Royce RB211-535E4-37, RB211-535E4-B-372015-02-03current

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.