The U.S. aircraft register, updated daily
Parts

Intrusion

No failure report names the intrusion. 1 FAA approvals let 1 company make a replacement intrusion, Timco Aerosystems 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 intrusion and sell it as an approved part for the models named. These are the companies holding such approvals for a intrusion:

For these models most: Mcdonnell Douglas Aircraft Co MD-88 (1).

MakerPartReplacesFitsGrantedStatus
Timco AerosystemsIntrusion/ Penetration Resistance Flightdeck Door and... 01T023L500Modification PartMcDonnell Douglas MD-88 with STC ST02463AT installed2002-09-16current

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.