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Other aircraft modifications

STC SA4091NM

FAA DRS lists SA4091NM as Current · Reissued, held by Learjet Inc, for Bombardier-Rotax GmbH DHC-8. Recorded change: Intallation of Honeywell vertical speed indicator/traffic resolution advisory (VSI/TRA) displays. (DHC-8 -102, -103) STC SA4593NM-D is required. Snapshot dated June 30, 2026.

FAA-listed holder
Learjet Inc
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Intallation of Honeywell vertical speed indicator/traffic resolution advisory (VSI/TRA) displays. (DHC-8 -102, -103) STC SA4593NM-D is required.

SA4091NM 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: Bombardier-Rotax GmbH DHC-8. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Bombardier-Rotax GmbH DHC-8A13NM

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Bombardier-Rotax GmbH DHC-8 model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs 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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