Counterweight Low
No failure report names the counterweight low. 10 FAA approvals let 1 company make a replacement counterweight low, Ontic Engineering & Manufacturing INC holding the most (10).
Approved replacement parts 10 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a counterweight low and sell it as an approved part for the models named. These are the companies holding such approvals for a counterweight low:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Ontic Engineering & Manufacturing INC | COUNTERWEIGHT-LOW TURBINE ROTOR 3022115CL1 | 3022115CL1 | Pratt & Whitney Canada JT15D-4 | 2020-09-28 | current |
| Ontic Engineering & Manufacturing INC | COUNTERWEIGHT LOW TURBINE ROTOR 3022115CL3 | 3022115CL3 | Pratt & Whitney Canada JT15D-4 | 2020-09-28 | current |
| Ontic Engineering & Manufacturing INC | COUNTERWEIGHT LOW TURBINE ROTOR 3022115CL5 | 3022115CL5 | Pratt & Whitney Canada JT15D-4 | 2020-09-28 | current |
| Ontic Engineering & Manufacturing INC | COUNTERWEIGHT-LOW COMPRESSOR 3032829CL1 | 3032829CL1 | Pratt & Whitney Canada JT15D-5, JT15D-5A, JT15D-5B | 2016-06-28 | current |
| Ontic Engineering & Manufacturing INC | COUNTERWEIGHT-LOW COMPRESSOR 3032828CL1 | 3032828CL1 | Pratt & Whitney Canada JT15D-5, JT15D-5A, JT15D-5B | 2016-06-28 | current |
| Ontic Engineering & Manufacturing INC | COUNTERWEIGHT-LOW COMPRESSOR 3032829CL2 | 3032829CL2 | Pratt & Whitney Canada JT15D-5, JT15D-5A, JT15D-5B | 2016-06-28 | current |
| Ontic Engineering & Manufacturing INC | COUNTERWEIGHT-LOW COMPRESSOR 3032828CL2 | 3032828CL2 | Pratt & Whitney Canada JT15D-5, JT15D-5A, JT15D-5B | 2016-06-28 | current |
| Ontic Engineering & Manufacturing INC | COUNTERWEIGHT LOW COMPRESSOR 3018015CL7 | 3018015CL7 | Pratt & Whitney Canada JT15D-1, JT15D-1A, JT15D-1B | 2016-06-28 | current |
| Ontic Engineering & Manufacturing INC | COUNTERWEIGHT-LOW COMPRESSOR 3032829CL3 | 3032829CL3 | Pratt & Whitney Canada JT15D-5, JT15D-5A, JT15D-5B | 2016-06-28 | current |
| Ontic Engineering & Manufacturing INC | COUNTERWEIGHT LOW COMPRESSOR 3018015CL6 | 3018015CL6 | Pratt & Whitney Canada JT15D-1, JT15D-1A, JT15D-1B | 2016-06-28 | 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.