Crown Support
No failure report names the crown support. 4 FAA approvals let 2 companies make a replacement crown support, Airborne Maintenance & Engineering Services holding the most (3).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a crown support and sell it as an approved part for the models named. These are the companies holding such approvals for a crown support:
For these models most: Boeing 737 (4).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Airborne Maintenance & Engineering Services | Crown Support Stand-off B37-53-021-223 | Modification Part | Boeing 737-700C | 2014-03-25 | current |
| Airborne Maintenance & Engineering Services | Crown Support Transverse Beam B37-53-021-217 | Modification Part | Boeing 737-700C | 2014-03-25 | current |
| Airborne Maintenance & Engineering Services | Crown Support B37-53-020-103 | Modification Part | Boeing 737-700C | 2014-03-25 | current |
| Volumatic INC | Crown Support B37-53-020-103 | Modification Part | Boeing 737-700C | 2014-02-13 | 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.