FAA-PMA
M-4001 is an FAA-PMA part held by Champion Aerospace LLC (PMA PQ1287CE) — approved as a replacement for Lycoming Engines67P2040667P20407 on Lycoming Engines IO-360-P1A · Current, Feb 2023.
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.
M-4001 is cataloged as SWITCH,PRESSURE. It carries 2 NSN identities and cross-references to 8 related part numbers. An FAA PMA relationship is on file. The part appears on MCRL cross-reference data.
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1223-576, 1745-2311, 309-00010, 309-0641-16, 309-10, M-4001-4PSI, M3059-6E1, S242648
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