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Flight controls

STC SA4-230

FAA DRS lists SA4-230 as Current 路 Reissued, held by Preferred Improvements LLC, for Boeing DC3-G102, Boeing DC3-G102A, and Boeing DC3-G103A, and 11 more aircraft configurations. Recorded change: Installation of aileron gap closure. Snapshot dated June 30, 2026.

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FAA-listed holder
Preferred Improvements LLC
Aircraft configurations
14
FAA revision date
FAA status
Current 路 Reissued

Recorded modification

What the FAA record covers

SA4-230 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: Boeing DC3-G102, Boeing DC3-G102A, and Boeing DC3-G103A, and 11 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing DC3-G102A-618Boeing DC3-G102AA-618Boeing DC3-G103AA-618Boeing DC3-G202AA-618Boeing DC3A-S1C3GA-669Boeing DC3A-S1CGA-669Boeing DC3A-S4C4GA-669Boeing DC3A-SC3GA-669Boeing DC3A-SCGA-669Boeing DC3C-R-1830-90CA-669Boeing DC3C-S1C3GA-669Boeing DC3C-S4C4GA-669Boeing DC3C-SC3GA-669Boeing DC3D-R-1830-90CA-669

Related flight controls STCs

FAA record reference

STC number
SA4-230
Product
Aircraft 路 Large Airplane
Country
United States
Application date
June 6, 1957
Revision date
February 25, 2016
CFR references
Part 21