SA6070NMEngine and powerplant
Installation of a 'quick-disconnect drain plug' on the engine rocker sump for the oil drain retrieval system after engine shutdown.
FAA holder: West Coast Air Creations
Aircraft STC directory
Consolidated Vultee Aircraft Stinson Division SM-8A STCs
The Jun 30, 2026 FAA DRS snapshot contains 3 selected supplemental type certificates with status Current whose public applicability data names the Consolidated Vultee Aircraft Stinson Division SM-8A. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
3
listed Current at snapshot
2
holder directories
2
modification categories
Apr 26, 2018
latest recorded revision
Modification demand surface
Engine and powerplant2
Aircraft structures1
Recorded holders
Recently revised SM-8A STCs
Showing the 3 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA01734SE (PG 3)Aircraft structures
Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.
FAA holder: Andrew D. Humphrey
SA02033AT (PAGE 5)Engine and powerplant
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