FAA-PMA
52557 is an FAA-PMA part held by Peco Manufacturing Inc. (PMA PQ0160NM) — approved as a replacement for (65B52704-5) on Boeing 747-100 SERIES, 747-200B SERIES · Current, Feb 2008.
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.
52557 is cataloged as DISK,VALVE. It carries 4 NSN identities and cross-references to 14 related part numbers. FAA PMA approval is on file from Peco Manufacturing Inc. An estimated 2 aircraft of the approved type are registered in the US. The part appears on MCRL cross-reference data.
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