The U.S. aircraft register, updated daily
Parts

Flap Modification

No failure report names the flap modification. 1 FAA approvals let 1 company make a replacement flap modification, Aviation Equipment INC 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 flap modification and sell it as an approved part for the models named. These are the companies holding such approvals for a flap modification:

For these models most: Boeing 737 (1).

MakerPartReplacesFitsGrantedStatus
Aviation Equipment INCB737 Flap Modification All Parts Listed on...Modification PartsBoeing 737-200, -200C, -300 Series2004-05-31current

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.