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Aircraft structures

STC ST09831SC

FAA DRS lists ST09831SC as Current · Reissued, held by Honeywell International, for McDonnell Douglas DC-9-11, McDonnell Douglas DC-9-12, and McDonnell Douglas DC-9-13, and 20 more aircraft configurations. Recorded change: Installation of Wing Anti-Ice Thermostat/Anticipator. Snapshot dated June 30, 2026.

FAA-listed holder
Aircraft configurations
23
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of Wing Anti-Ice Thermostat/Anticipator.

ST09831SC 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 DC-9-11, McDonnell Douglas DC-9-12, and McDonnell Douglas DC-9-13, and 20 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact McDonnell Douglas DC-9-11 and McDonnell Douglas DC-9-12, and 21 more aircraft configurations model, serial range, and configuration?
  2. 02Which configuration, loads, materials, inspections, and damage limits 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?