SE02505SEOther aircraft modifications
Installation of a Kenmore flyweight screw.
FAA holder: Kenmore Air Harbor LLC
Aircraft STC directory
Pratt & Whitney Division Wasp Jr. B-4 STCs
The Jun 30, 2026 FAA DRS snapshot contains 3 selected supplemental type certificates with status Current whose public applicability data names the Pratt & Whitney Division Wasp Jr. B-4. 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
3
holder directories
3
modification categories
Apr 5, 2019
latest recorded revision
Modification demand surface
Other aircraft modifications1
Engine and powerplant1
Fuel systems1
Recorded holders
Recently revised Wasp Jr. B-4 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
SE31WEEngine and powerplant
Installation of Electro-Coatings, Inc. piston rings P/N 251822, 251824, and 251825 on Pratt and Whitney R-985 piston P/N 27056 for use with Channelcromium plated R-985 engine cylinders.
FAA holder: Continental Motors, Inc.