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Engine and powerplant

STC ST0836CH-D

FAA DRS lists ST0836CH-D as Current · Reissued, held by Landmark Aviation, for Learjet 31, Learjet 31A, and Learjet 35, and 3 more aircraft configurations. Recorded change: Installation of Honeywell N1 Digital Electronic Engine Control (DEEC). Snapshot dated June 30, 2026.

FAA-listed holder
Landmark Aviation
Aircraft configurations
6
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of Honeywell N1 Digital Electronic Engine Control (DEEC).

ST0836CH-D 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, Learjet 31A, and Learjet 35, and 3 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Learjet 31A10CELearjet 31AA10CELearjet 35A10CELearjet 35A (C-21A)A10CELearjet 36A10CELearjet 36AA10CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Learjet 31 and Learjet 31A, and 4 more aircraft configurations model, serial range, and configuration?
  2. 02Which powerplant configuration, limits, instruments, and maintenance data 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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