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Other aircraft modifications

STC ST04530AT

FAA DRS lists ST04530AT as Current · Reissued, held by Preferred Improvements LLC, for Boeing DC3A-S1C3G, Boeing DC3C-S4C4G, and Boeing DC3C-SC3G, and 1 more aircraft configuration. Recorded change: Installation of a wingtip modification on DC3C aircraft (specific models listed). Snapshot dated June 30, 2026.

FAA-listed holder
Preferred Improvements LLC
Aircraft configurations
4
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

ST04530AT 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 DC3A-S1C3G, Boeing DC3C-S4C4G, and Boeing DC3C-SC3G, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing DC3A-S1C3GA-669Boeing DC3C-S4C4GA-669Boeing DC3C-SC3GA-669Boeing DC3D-R-1830-90CA-669

Buyer checks

Confirm before sourcing

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