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Other aircraft modifications

STC SE4-864

FAA DRS lists SE4-864 as Current · Reissued, held by Covington Aircraft Engines, Inc., for Pratt & Whitney Division R-985 Series and Pratt & Whitney Division Wasp Jr. Series. Recorded change: Increase in impeller drive ratio from 10:1 to 12:1. Snapshot dated June 30, 2026.

FAA-listed holder
Covington Aircraft Engines, Inc.
Aircraft configurations
2
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

SE4-864 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: Pratt & Whitney Division R-985 Series and Pratt & Whitney Division Wasp Jr. Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Pratt & Whitney Division R-985 Series5E-1Pratt & Whitney Division Wasp Jr. SeriesE-123

Buyer checks

Confirm before sourcing

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