FAA-PMA

55221 is an FAA-PMA part held by Hartzell Engine Technologies LLC (PMA PQ1383CE) — approved as a replacement for 655714 on Continental Aerospace Technologies Inc.. IO-520-BA12B | IO-520-BA14B | IO-520-BA14M | IO-520-BA17B | IO-520-BA20B | IO-520-BA21B | IO-520-BA24B | IO-520-BA25B | IO-520-BA28B | IO-520-BA29B | IO-520-BA31B | IO-520-BA32B | IO-520-BA33B | IO-520-BA34B | IO-520-BA35B | IO-520-BA36B | IO-520-BA42B | IO-520-BB12B | IO-520-BB12M | IO-520-BB14B | IO-520-BB15B | IO-520-BB16B | IO-520-BB16U | IO-520-BB17B | IO-520-BB18B | IO-520-BB18U | IO-520-BB19B | IO-520-BB20B | IO-520-BB21B | IO-520-BB24B | IO-520-BB25B | IO-520-BB26B | IO-520-BB27B | IO-520-BB28B | IO-520-BB29B | IO-520-BB32B | IO-520-BB33B | IO-520-BB34B | IO-520-BB35B | IO-520-BB36B | IO-520-BB37B | IO-520-BB39B | IO-520-BB41B | IO-520-BB42B | IO-520-BB44B | IO-520-BB45B | IO-520-BB46B | IO-520-BB47B | IO-520-BB48B | IO-520-BB49B | IO-520-BB50B | IO-520-BB51B | IO-520-BB52B | IO-520-BB53B | IO-520-BB54B | IO-520-BB60B | IO-520-BB68B | IO-520-BB73B | IO-520-BB74B | IO-520-BB75B | IO-520-BB77B | IO-520-BB78B | IO-520-BB79B | IO-520-BB80B | IO-550-B1F | IO-550-B2F | IO-550-B3F | IO-550-B10B | IO-550-B11B | IO-550-B12B | IO-550-B13B | IO-550-B15B | IO-550-B16B | IO-550-B17B | IO-550-B18B | IO-550-B20B | IO-550-B21B | IO-550-B22B | IO-550-B23B | IO-550-B24B | IO-550-B25B | IO-550-B26B | IO-550-B27B | IO-550-B28B | IO-550-B29B | IO-550-B31B | IO-550-B32B | IO-550-B33B | IO-550-B34B | IO-550-B37B | IO-550-B38B | IO-550-B39B | IO-550-B40B | IO-550-B41B | IO-550-B42B | IO-550-B112B | IO-550-B114B | IO-550-B128B | IO-550-B129B · Current, Sep 2025.

A PMA part is approved for the specific eligibility listed on its FAA record; whether it may go on a particular aircraft, engine or component is the installer's determination from that record and the eligibility list. A part-number match alone does not establish eligibility. Source: FAA DRS PMA database, refreshed weekly. Data, not advice.