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Landing gear and brakes

STC SA4149WE

FAA DRS lists SA4149WE as Current · Reissued, held by Northern 3 LLC, for McDonnell Douglas Super DC-3, McDonnell Douglas R4D-8, and McDonnell Douglas R4D-8Z. Recorded change: Installation of a flap and landing gear aural warning system. Snapshot dated June 30, 2026.

FAA-listed holder
Northern 3 LLC
Aircraft configurations
3
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of a flap and landing gear aural warning system.

SA4149WE 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: McDonnell Douglas Super DC-3, McDonnell Douglas R4D-8, and McDonnell Douglas R4D-8Z. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

McDonnell Douglas Super DC-36A2McDonnell Douglas R4D-86A2McDonnell Douglas R4D-8Z6A2

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact McDonnell Douglas Super DC-3 and McDonnell Douglas R4D-8, and 1 more aircraft configuration model, serial range, and configuration?
  2. 02Which gear, wheel, brake, tire, and hydraulic configurations apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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