Mark Interior
No failure report names the mark interior. 5 FAA approvals let 2 companies make a replacement mark interior, Heath Tecna holding the most (4).
Approved replacement parts 5 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a mark interior and sell it as an approved part for the models named. These are the companies holding such approvals for a mark interior:
For these models most: Boeing 737 (2), Douglas DC-8 (1), Boeing 727 (1), Boeing 707 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Safran Cabin INC. | Mark I Interior Installation 737-200 HPD5-27300 | Modification Part | The Boeing Company 737-200 Series, 737-200C Series | 2025-08-07 | current |
| Heath Tecna | Mark I Interior Retrofit Kit Dwg HPD-DL-6 | Modification Part | McDonnell Douglas DC-8-63, -61 | 1991-01-16 | current |
| Heath Tecna | Mark I Interior Modification Kit Dwg HPD-DL-8 | Modification Part | Boeing 707-300B, -300C | 1991-01-16 | current |
| Heath Tecna | Mark I Interior Conversion Kit Dwg HPD-DL-11 | Modification Part | Boeing 737-200, -200C | 1991-01-16 | current |
| Heath Tecna | Mark I Interior Conversion Kit Dwg HPD-DL-5 | Modification Part | Boeing 727-214, -254 | 1991-01-16 | current |
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.