STC SA4-977
FAA DRS lists SA4-977 as Current · Amended, held by Univair Aircraft Corporation, for New Piper Aircraft PA-16, New Piper Aircraft PA-18, and New Piper Aircraft PA-19 (Army L-18C), and 8 more aircraft configurations. Recorded change: Installation of Fiberglass rudder post mount for either Grimes or Whelen WRM rotating beacons. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA4-977 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: New Piper Aircraft PA-16, New Piper Aircraft PA-18, and New Piper Aircraft PA-19 (Army L-18C), and 8 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
Related flight controls STCs
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Installation of Bendix/King KFC 225 Automatic Flight Control System.
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Installation of the King KFC-200 automatic flight control system.
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