FAA-PMA
502B is an FAA-PMA part held by Korry Electronics Co (PMA PQ0134NM) — approved as a replacement for 502B on Boeing 737-200, 737-300, 737-400, 737-500 · Current, Oct 2009.
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.
502B is cataloged as COVER,JUNCTION BOX. It carries 4 NSN identities and cross-references to 6 related part numbers. An FAA PMA relationship is on file. The part appears on MCRL cross-reference data.
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