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Other aircraft modifications

STC ST04254AT

FAA DRS lists ST04254AT as Current · Issued, held by United Parcel Service Company, for Boeing 757-200PF Series and Boeing 767-300F Series. Recorded change: The modification of 757 and 767 aircraft for activation of TCAS traffic advisories (TAs) on the Electronic Horizontal Situation Indicator (EHSI) with TCAS resolution advisory commands (RAs) remaining on the vertical speed indicators VSI/RAs. Snapshot dated June 30, 2026.

FAA-listed holder
United Parcel Service Company
Aircraft configurations
2
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

The modification of 757 and 767 aircraft for activation of TCAS traffic advisories (TAs) on the Electronic Horizontal Situation Indicator (EHSI) with TCAS resolution advisory commands (RAs) remaining on the vertical speed indicators VSI/RAs.

ST04254AT 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 757-200PF Series and Boeing 767-300F Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 757-200PF SeriesA2NMBoeing 767-300F SeriesA1NM

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 757-200PF Series and Boeing 767-300F Series 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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