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Avionics

STC ST01278LA

FAA DRS lists ST01278LA as Current · Reissued, held by Northrop Grumman Systems Corporation, for Boeing 727-100 Series and Boeing 727-200 Series. Recorded change: Installation of dual Litton LTN-92 Inertial Reference System (INS), single Delco C-VI INS, and dual Global Positioning System (GPS). Snapshot dated June 30, 2026.

FAA-listed holder
Northrop Grumman Systems Corporation
Aircraft configurations
2
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of dual Litton LTN-92 Inertial Reference System (INS), single Delco C-VI INS, and dual Global Positioning System (GPS).

ST01278LA 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 727-100 Series and Boeing 727-200 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 727-100 SeriesA3WEBoeing 727-200 SeriesA3WE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 727-100 Series and Boeing 727-200 Series 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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