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Other aircraft modifications

STC ST9429SC-D

FAA DRS lists ST9429SC-D as Current · Issued, held by American Airlines Inc, for Boeing DC-9-82 (MD-82) and Boeing DC-9-83 (MD-83). Recorded change: Modification of aircraft flight and service interphone system. Snapshot dated June 30, 2026.

FAA-listed holder
American Airlines Inc
Aircraft configurations
2
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Modification of aircraft flight and service interphone system.

ST9429SC-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: Boeing DC-9-82 (MD-82) and Boeing DC-9-83 (MD-83). Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing DC-9-82 (MD-82)A6WEBoeing DC-9-83 (MD-83)A6WE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing DC-9-82 (MD-82) and Boeing DC-9-83 (MD-83) 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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