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Avionics

STC ST425CH

FAA DRS lists ST425CH as Current · Amended, held by Canard Aerospace Corporation, for Boeing 747-100 Series, Boeing 747-100B SUD Series, and Boeing 747-300 Series, and 5 more aircraft configurations. Recorded change: Installation of three Trimble TNL8100 GPS navigation systems and three Sperry/Honeywell Attitude Hearing Sensing Units. Snapshot dated June 30, 2026.

FAA-listed holder
Canard Aerospace Corporation
Aircraft configurations
8
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of three Trimble TNL8100 GPS navigation systems and three Sperry/Honeywell Attitude Hearing Sensing Units.

ST425CH 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 747-100 Series, Boeing 747-100B SUD Series, and Boeing 747-300 Series, and 5 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 747-100 SeriesA20WEBoeing 747-100B SUD SeriesA20WEBoeing 747-300 SeriesA20WEBoeing 747-200B SeriesA20WEBoeing 747-200F SeriesA20WEBoeing 747-200C SeriesA20WEBoeing 747SP SeriesA20WEBoeing 747-100B SeriesA20WE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 747-100 Series and Boeing 747-100B SUD Series, and 6 more aircraft configurations 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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