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Propellers

STC SA20GL

FAA DRS lists SA20GL as Current · Reissued, held by Ontic Engineering and Manufacturing Inc., for B-N Group BN-2, B-N Group BN-2A, and B-N Group BN-2A-2, and 37 more aircraft configurations. Recorded change: Installation of Woodward Type II electronic propeller synchronizer or synchrophaser system. (G-44A MODIFIED COLEMILL - STC 2-13) (500-A modified - Colemill STC SA340SO). Snapshot dated June 30, 2026.

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Aircraft configurations
40
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

SA20GL 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: B-N Group BN-2, B-N Group BN-2A, and B-N Group BN-2A-2, and 37 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

FAA record reference

STC number
SA20GL
Product
Aircraft · Small Multi-Engine
Country
United States
Application date
March 24, 1972
Revision date
April 30, 2007
CFR references
Part 21