FAA-PMA
8331-1 is an FAA-PMA part held by Astronics Luminescent Systems Inc. (PMA PQ0786NE) — approved as a replacement for 8331-1 on Sikorsky S76A/B/C · Current, Feb 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.
8331-1 is cataloged as CIRCUIT CARD ASSEMBLY. It carries 1 NSN identity and cross-references to 1 related part number. FAA PMA approval is on file from Astronics Luminescent Systems Inc. An estimated 181 aircraft of the approved type are registered in the US. The part appears on MCRL cross-reference data.
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