The U.S. aircraft register, updated daily
Parts

Modification Parts

No failure report names the modification parts. 4 FAA approvals let 2 companies make a replacement modification parts, Greenpoint Technologies INC holding the most (2).

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Boeing 747 (4).

MakerPartReplacesFitsGrantedStatus
Greenpoint Technologies INCModification Parts Kit US740MI1-1US740MI1-1Boeing 747-200B Series2015-03-15current
Greenpoint Technologies INCModification Parts Kit US740MI1-2US740MI1-2Boeing 747-200B Series2015-03-15current
Greenpoint Products & ServicesModification Parts Kit US740MI1-1US740MI1-1Boeing 747-200B Series2012-04-25current
Greenpoint Products & ServicesModification Parts Kit US740MI1-2US740MI1-2Boeing 747-200B Series2012-04-25current

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.