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Avionics

STC ST01661NY

FAA DRS lists ST01661NY as Current · Issued, held by Delta Engineering, for Boeing 747-200B Series, Boeing 747-300 Series, and Boeing 747SP Series. Recorded change: Modification of existing Mode S Transponder by installing Honeywell/ACSS P/N 7517800-10004 ATDL Transponders. Snapshot dated June 30, 2026.

FAA-listed holder
Delta Engineering
Aircraft configurations
3
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Modification of existing Mode S Transponder by installing Honeywell/ACSS P/N 7517800-10004 ATDL Transponders.

ST01661NY 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 747-200B Series, Boeing 747-300 Series, and Boeing 747SP Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 747-200B SeriesA20WEBoeing 747-300 SeriesA20WEBoeing 747SP SeriesA20WE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 747-200B Series and Boeing 747-300 Series, and 1 more aircraft configuration model, serial range, and configuration?
  2. 02Which part numbers, software versions, interfaces, and manual changes 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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