STC SA2991SO
FAA DRS lists SA2991SO as Current · Reissued, held by Purolator Facet, Inc, for McDonnell Douglas DC-9-11, McDonnell Douglas DC-9-12, and McDonnell Douglas DC-9-13, and 21 more aircraft configurations. Recorded change: Installation of a replacement coalescer filter, P/N 21D10 or 21D10-1, or 21BC125.. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA2991SO identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.
Applicability
Aircraft named in FAA DRS
Named aircraft: McDonnell Douglas DC-9-11, McDonnell Douglas DC-9-12, and McDonnell Douglas DC-9-13, and 21 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
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Related other aircraft modifications STCs
Installation of Hamilton Standard air cycle machine.
FAA holder: PATS Aircraft LLC
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FAA holder: PATS Aircraft LLC