Crank Arm
No failure report names the crank arm. 8 FAA approvals let 5 companies make a replacement crank arm, Pma Sales LLC holding the most (3).
Approved replacement parts 8 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a crank arm and sell it as an approved part for the models named. These are the companies holding such approvals for a crank arm:
For these models most: Boeing 737 (5), Boeing 747 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Garmin International INC | CRANK ARM, GSA 28, 1.25IN 117-01593-00 | Modification Part | See Approved Model... See Approved Model List for STC SA01866WI | 2020-07-20 | current |
| Aero Fluid Products | Crank Arm 7003-44-1 | 321261 | Boeing 737-100 Series, 737-200 Series,... | 2019-02-20 | current |
| Pma Sales LLC | Crank Arm P321261 | 321261 | BOEING 737-100 Series, 737-200 Series,... | 2016-10-06 | current |
| Pma Sales LLC | Crank Arm P321261 | 321261 | Boeing 737-100 Series, 737-200 Series,... | 2012-10-16 | current |
| Pma Sales LLC | Crank Arm P321261 | 321261 | Boeing 737-100 Series, 737-200 Series,... | 2008-07-28 | current |
| Dukes INC | Crank Arm 7003-44-1 | 321261 | Boeing 737-100 Series, 737-200 Series,... | 2003-04-09 | current |
| Lucas Aerospace Cargo System | Crank Arm Assembly 65B60008-1 | Boeing 65B60008-1 | Boeing 747SP, -100, -200 | 1997-06-02 | current |
| Lucas Aerospace Cargo System | Crank Arm Assembly 65B60009-1, -2 | Boeing 65B60009-1, -2 | Boeing 747SP, -100, -200 | 1997-06-02 | 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.