Compression Spring
No failure report names the compression spring. 16 FAA approvals let 10 companies make a replacement compression spring, Pma Sales LLC holding the most (3).
Approved replacement parts 16 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a compression spring and sell it as an approved part for the models named. These are the companies holding such approvals for a compression spring:
For these models most: Boeing 737 (6), Embraer EMB-500 Phenom 100 (3), Airbus A320 (3), Sikorsky S-61 (2), Mcdonnell Douglas MD-11 (2), Mcdonnell Douglas DC-10 (2), Boeing 757 (2), Sikorsky S-64 (1), Piper PA-60 Aerostar (1), Israel Aircraft Industries 1124 (1), Boeing 767 (1), Boeing 747 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Av8 Pma, LLC. | Compression Spring NP-2117-4007-901 | 2117-4007-901 | EMBRAER S.A. EMB-500 | 2021-12-14 | current |
| Av8 Pma, LLC. | Compression Spring NP-2136-1007-001 | 2136-1007-001 | EMBRAER S.A. EMB-500 | 2021-12-14 | current |
| Av8 Pma, LLC. | Compression Spring NP-2136-1041-001 | 2136-1041-001 | EMBRAER S.A. EMB-500 | 2021-12-14 | current |
| Aero Fluid Products | Compression Spring 7003-58-1 | 321961 | Boeing 737-100 Series, 737-200 Series,... | 2019-02-20 | current |
| General Pneumatics Inflation Systems LLC | COMPRESSION SPRING 524S0003 | R0524-31 | Boeing 737-100, 200, 300 | 2016-12-21 | current |
| Pma Sales LLC | Compression Spring P321961 | 321961 | BOEING 737-100 Series, 737-200 Series,... | 2016-10-06 | current |
| Pma Sales LLC | Compression Spring P321961 | 321961 | Boeing 737-100 Series, 737-200 Series,... | 2012-10-16 | current |
| Worthington Aviation | Compression Spring 553616 | 553616 | Israel Aircraft Industries 1124/1124A | 2011-01-13 | current |
| Gemini Engineering | COMPRESSION SPRING 273N4080-1 | 273N4080-1 | Boeing 757-200 Series, 757-200CB Series,... | 2009-06-03 | current |
| Pma Sales LLC | Compression Spring P321961 | 321961 | Boeing 737-100 Series, 737-200 Series,... | 2008-07-28 | current |
| Dukes INC | Compression Spring 7003-58-1 | 321961 | Boeing 737-100 Series, 737-200 Series,... | 2003-04-09 | current |
| Machen INC | Compression Spring 980206-001 | Piper 450560-3 | Aerostar Aircraft PA-60-600, -601, -601P | 1999-02-18 | current |
| Precision Coil Spring CO | Compression Spring PC 252 | DAC PC 252 | McDonnell Douglas DC-10-10, -10F, -15 | 1996-02-19 | current |
| Precision Coil Spring CO | Compression Spring PC 251 | DAC PC 251 | McDonnell Douglas DC-10-10, -10F, -15 | 1996-02-19 | current |
| Rotair Industries INC | Compression Spring R1620-65205-0 | S1620-65205-0 | Sikorsky S-61A/D (T.C. H2EA) S-61L/N/NM/R... | 1995-07-31 | current |
| Rotair Industries INC | Compression Spring R6135-20090-0 | Sikorsky S6135-20090-0 | Sikorsky S-61L, N, NM | 1994-06-28 | 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.