Carbon Block
No failure report names the carbon block. 3 FAA approvals let 1 company make a replacement carbon block, Pma Products INC holding the most (3).
Approved replacement parts 3 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a carbon block and sell it as an approved part for the models named. These are the companies holding such approvals for a carbon block:
For these models most: Dehavilland DHC-6 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Pma Products INC | Carbon Block Assembly CA4731 | Viking Air Limited A4731 | Viking Air Limited DHC-6 Series. All Serial Numbers | 2017-04-20 | current |
| Pma Products INC | Carbon Block Bearing Assembly CAB5121 | McCauley Part No. B-5121 | McCauley 3GFR34C701, 3GFR34C702, 3GFR34C703 | 1998-06-09 | current |
| Pma Products INC | Carbon Block Assembly CA4731 | DeHavilland A4731, Carbon Block Assembly | deHavilland DHC-6, S/N 1 thru 802 and 804 | 1997-03-24 | 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.