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Aircraft structures

STC ST01653CH

FAA DRS lists ST01653CH as Current · Reissued, held by Woodward MPC, for McDonnell Douglas DC-9-11, McDonnell Douglas DC-9-12, and McDonnell Douglas DC-9-13, and 19 more aircraft configurations. Recorded change: Installation of an Auxiliary Power Unit Door Actuator System. Snapshot dated June 30, 2026.

FAA-listed holder
Woodward MPC
Aircraft configurations
22
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of an Auxiliary Power Unit Door Actuator System.

ST01653CH 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 19 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 20 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?