Bar Code
No failure report names the bar code. 2 FAA approvals let 1 company make a replacement bar code, Parker Hannifin Corporation holding the most (2).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a bar code and sell it as an approved part for the models named. These are the companies holding such approvals for a bar code:
For these models most: Boeing 737 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Parker Hannifin Corporation | Bar Code Label, Steering Valve Assembly - Spares 383998PHA-1 | 383998-5 | The Boeing Company 737-600 Series, 737-700 Series,... | 2026-05-11 | current |
| Parker Hannifin Corporation | Bar Code Label – Steering Valve Assembly - Spares 521802PHA-1 | 521802-1 | The Boeing Company 737-8, 737-9 | 2026-05-11 | 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.