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Other aircraft modifications

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.

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FAA-listed holder
Purolator Facet, Inc
Aircraft configurations
24
FAA revision date
FAA status
Current · Reissued

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.

McDonnell Douglas DC-9-11A6WEMcDonnell Douglas DC-9-12A6WEMcDonnell Douglas DC-9-13A6WEMcDonnell Douglas DC-9-14A6WEMcDonnell Douglas DC-9-15A6WEMcDonnell Douglas DC-9-15FA6WEMcDonnell Douglas DC-9-21A6WEMcDonnell Douglas DC-9-31A6WEMcDonnell Douglas DC-9-32A6WEMcDonnell Douglas DC-9-32 (VC-9C)A6WEMcDonnell Douglas DC-9-32FA6WEMcDonnell Douglas DC-9-32F (C-9A)A6WEMcDonnell Douglas DC-9-32F (C-9B)A6WEMcDonnell Douglas DC-9-33FA6WEMcDonnell Douglas DC-9-34A6WEMcDonnell Douglas DC-9-34FA6WEMcDonnell Douglas DC-9-41A6WEMcDonnell Douglas DC-9-51A6WEMcDonnell Douglas DC-9-81A6WEMcDonnell Douglas DC-9-82A6WEMcDonnell Douglas DC-9-83A6WEMcDonnell Douglas DC-9-87A6WEMcDonnell Douglas MD-88A6WEMcDonnell Douglas MD-90-30A6WE

Related other aircraft modifications STCs

FAA record reference

STC number
SA2991SO
Product
Aircraft · Large Multi-Engine
Country
United States
Application date
May 3, 1991
Revision date
October 19, 2017
CFR references
Part 21