Seal Horizontal
No failure report names the seal horizontal. 5 FAA approvals let 1 company make a replacement seal horizontal, Aviation Technical Services holding the most (5).
Approved replacement parts 5 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a seal horizontal and sell it as an approved part for the models named. These are the companies holding such approvals for a seal horizontal:
For these models most: Boeing 737 (5).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aviation Technical Services | Seal Assy – Horizontal Stabilizer T/E Gap Cover 186A3004-17ATSMRO | 186A3004-17 | The Boeing Company 737-700 Series, 737-800 Series | 2025-10-01 | current |
| Aviation Technical Services | Seal Assy – Horizontal Stabilizer T/E Gap Cover 186A3004-4ATSMRO | 186A3004-4 | The Boeing Company 737-700 Series, 737-800 Series | 2025-10-01 | current |
| Aviation Technical Services | Seal Assy – Horizontal Stabilizer T/E Gap Cover 186A3004-3ATSMRO | 186A3004-3 | The Boeing Company 737-700 Series, 737-800 Series | 2025-10-01 | current |
| Aviation Technical Services | Seal Assy – Horizontal Stabilizer T/E Gap Cover 186A3004-18ATSMRO | 186A3004-18 | The Boeing Company 737-700 Series, 737-800 Series | 2025-10-01 | current |
| Aviation Technical Services | Seal – Horizontal, Fwd Cargo Compt Fwd Bulkhead 284A6841-49ATSMRO | 284A6841-49 | Boeing 737-600 Series, 737-700 Series,... | 2021-09-20 | 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.