Wave Washer
No failure report names the wave washer. 9 FAA approvals let 6 companies make a replacement wave washer, Pma Sales LLC holding the most (3).
Approved replacement parts 9 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a wave washer and sell it as an approved part for the models named. These are the companies holding such approvals for a wave washer:
For these models most: Boeing 747 (4), Boeing 767 (3), Boeing 757 (3), Boeing 737 (3), Saab-Fairchild 340 (2), Aerospatiale/Aeritalia ATR 42 (2), Bombardier CL-600 Challenger and CRJ (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aviatron INC | Wave Washer AVUS2711750-1-4 | 2711750-1 | MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series... | 2023-06-12 | current |
| Pma Sales LLC | Wave Washer P5823348-101 | Parker5823348-101 | Boeing 747-200B Series, 747-300 Series,... | 2021-09-22 | current |
| Aero Fluid Products | Wave Washer 7011-31-1 | Parker 5823348-101 | Boeing 747-200B Series, 747-300 Series,... | 2019-02-20 | current |
| Pma Sales LLC | Wave Washer P5823348-101 | Parker 5823348-101 | Boeing 747-200B Series, -300 Series, -400 Series | 2012-10-14 | current |
| Aircraft Component Design LLC | Wave Washer 839B306P001ACD | 839B306P001 | General Electric CT58-140-1, CT58-140-2 | 2012-01-24 | current |
| Pma Sales LLC | Wave Washer P5823348-101 | Parker 5823348-101 | Boeing 747-200B Series, 747-300 Series,... | 2009-08-18 | current |
| Midwest Aircraft Prod CO | Wave Washer A3469-7 | Mansfield B60361-7 | Aerospatiale ATR 42 Series, 737, 340B | 2004-07-13 | current |
| Midwest Aircraft Products Company | Wave Washer A3469-7 | BE Aerospace/ Mansfield P/N B60361-7 | Boeing 737) SAAB Aircraft AB... | 2004-07-13 | current |
| Midwest Aircraft Prod CO | Wave Washer A3469-7 | Mansfield B60361-7 | Aerospatiale ATR42 Series, 737, 340B | 1994-02-22 | 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.