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Avionics

STC ST00227MC

FAA DRS lists ST00227MC as Current · Issued, held by The Boeing Company, for Boeing 747-200B Series. Recorded change: Low Range Radar Altimeter 5G C-Band Upgrade as defined by FAA. Snapshot dated June 30, 2026.

FAA-listed holder
The Boeing Company
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Low Range Radar Altimeter 5G C-Band Upgrade as defined by FAA.

ST00227MC 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. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 747-200B SeriesA20WE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 747-200B 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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