Fractured Ring
No failure report names the fractured ring. 5 FAA approvals let 2 companies make a replacement fractured ring, Rexnord Industries, LLC holding the most (3).
Approved replacement parts 5 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a fractured ring and sell it as an approved part for the models named. These are the companies holding such approvals for a fractured ring:
For these models most: Boeing 777 (1), Airbus A340 (1), Airbus A330 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Qualiseal Technology | Fractured Ring Seal Assembly QT1-300-336 | 1-300-336 | Honeywell T5313B, T5317A, T5317A-1 | 2014-08-07 | current |
| Qualiseal Technology | Fractured Ring Seal Assembly QT1-300-616 | 1-300-616 | Honeywell T5313B, T5317A, T5317A-1 | 2014-08-07 | current |
| Rexnord Industries, LLC | Fractured Ring Seal 15-1659-700 | 3844912-2 | Boeing 777-200 | 2014-02-13 | current |
| Rexnord Industries, LLC | Fractured Ring Seal 15-1480-700 | 3844986-1 | Airbus A330-201, -202, -203 | 2014-02-13 | current |
| Rexnord Industries, LLC | Fractured Ring Seal 15-1259-701 | 3844561-3 | Boeing MD-90-30 | 2012-06-27 | 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.