Skip to content
Other aircraft modifications

STC ST03894NY

FAA DRS lists ST03894NY as Current · Issued, held by Aero-Dienst GmbH & Co KG, for Learjet 31 and Learjet 31A. Recorded change: Installation of TCAS TPU67A to B upgrade to Version 7.1 (Honeywell). Snapshot dated June 30, 2026.

FAA-listed holder
Aero-Dienst GmbH & Co KG
Aircraft configurations
2
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of TCAS TPU67A to B upgrade to Version 7.1 (Honeywell).

ST03894NY 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: Learjet 31 and Learjet 31A. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Learjet 31A10CELearjet 31AA10CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Learjet 31 and Learjet 31A 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?

Related other aircraft modifications STCs