Cabin Duct
No failure report names the cabin duct. 4 FAA approvals let 3 companies make a replacement cabin duct, Custom Aircraft Interiors 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 cabin duct and sell it as an approved part for the models named. These are the companies holding such approvals for a cabin duct:
For these models most: Md Helicopters Inc 600 (3), Md Helicopters Llc 369 (2), Md Helicopters Inc 500 (2), Sikorsky S-76 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Custom Aircraft Interiors | Aft Cabin Duct CAI-8655 | 369D292475-13 | MD 369C, D, E | 2022-12-08 | current |
| Custom Aircraft Interiors | Aft Cabin Duct CAI-8655 | 369D292475-13 | MDHC/MD 369E, FF, 500N | 2022-12-08 | current |
| Ht Parts LLC | Cabin & Duct Mod., Right Hoist & Pop-out Windows 02076-10V025 | Modification Part | Sikorsky S76A, B, C | 2004-10-28 | current |
| Custom Aircraft Interiors | Aft Cabin Duct CAI-8655 | 369D292475-13 | MD Helicopters, Inc. MDHI) (369, E, FF 500N | 2003-01-01 | 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.