Way Switch
No failure report names the way switch. 8 FAA approvals let 2 companies make a replacement way switch, Avtech Tyee INC holding the most (4).
Approved replacement parts 8 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a way switch and sell it as an approved part for the models named. These are the companies holding such approvals for a way switch:
For these models most: Boeing 747 (6), Boeing 767 (2), Boeing 757 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Avtech Tyee INC | 4-Way Switch 90-02204 | WCS 220-4 | Boeing 747-200B Series, 747-200C Series,... | 2012-05-01 | current |
| Avtech Tyee INC | 7-Way Switch 90-02233 | WCS 223-3 | Boeing 757-200 Series, 757-200CB Series,... | 2012-05-01 | current |
| Avtech Tyee INC | 4-Way Switch 90-02205 | WCS 220-5 | Boeing 747-200B Series, 747-200C Series,... | 2012-05-01 | current |
| Avtech Tyee INC | 4-Way Switch 90-02206 | WCS 220-6 | Boeing 747-400F Series | 2012-05-01 | current |
| Avtech Corporation | 7 Way Switch Assy 90-02233 | WCS 223-3 | Boeing 757-200 Series, 757-200CB Series,... | 2008-04-23 | current |
| Avtech Corporation | 4-Way Switch 90-02205 | WCS 220-5 | Boeing 747-200B Series, 747-200C Series,... | 2008-04-23 | current |
| Avtech Corporation | 4-Way Switch 90-02204 | WCS 220-4 | Boeing 747-200B Series, 747-200C Series,... | 2008-04-23 | current |
| Avtech Corporation | 4-Way Switch 90-02206 | WCS 220-6 | Boeing 747-400F Series | 2008-04-23 | 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.