Aircraft STC directory

Consolidated Vultee Aircraft Stinson Division SR-9E (Army UC-81J) STCs

The Jun 30, 2026 FAA DRS snapshot contains 4 selected supplemental type certificates with status Current whose public applicability data names the Consolidated Vultee Aircraft Stinson Division SR-9E (Army UC-81J). Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

listed Current at snapshot

holder directories

modification categories

Dec 20, 2017

latest recorded revision

Modification demand surface

Engine and powerplant2 Other aircraft modifications1 Landing gear and brakes1

Recorded holders

Airwolf Filter Corporation1 M-20 Oil Separators LLC1 Cooper Aviation Supply Company, Inc.1

Recently revised SR-9E (Army UC-81J) STCs

Showing the 4 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SA01406NYEngine and powerplantRevised Dec 20, 2017

Installation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine fixed light aircraft and\nrotary wing.

FAA holder: Airwolf Filter Corporation

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SA02033AT (PAGE 6)Engine and powerplantRevised Jul 24, 2008

Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW).

FAA holder: M-20 Oil Separators LLC

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SA1235GLOther aircraft modificationsRevised Jun 14, 2002

Surrendered and incorporated into STC SA00478CH.

FAA holder: Cooper Aviation Supply Company, Inc.

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SA00068LALanding gear and brakesRevised Apr 11, 2002

Installation of tail wheel adapter ring.

FAA holder: R-R-R-Russ Aircraft

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