Top Spar
No failure report names the top spar. 2 FAA approvals let 1 company make a replacement top spar, Spoilers INC holding the most (2).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a top spar and sell it as an approved part for the models named. These are the companies holding such approvals for a top spar:
For these models most: Cessna 414 Chancellor (1), Cessna 340 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Spoilers INC | Top Spar Bracket 2008-1 | Modification Part | Cessna 414 | 2014-05-15 | current |
| Spoilers INC | Top Spar Bracket 2008-1 | Modification Part | Cessna 340, 340A | 2014-05-15 | 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.