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Other aircraft modifications

STC ST223CH

FAA DRS lists ST223CH as Current · Surrendered, held by AvAero, for Boeing 737-100 Series, Boeing 737-200 Series, and Boeing 737-200C Series. Recorded change: Installation of a Stage 3 hushkit when powered by P&W JT8D-7, JT8D-9, JT8D-15, or JT8D-17 Series Engines. Snapshot dated June 30, 2026.

FAA-listed holder
AvAero
Aircraft configurations
3
FAA revision date
FAA status
Current · Surrendered

Recorded modification

What the FAA record covers

Installation of a Stage 3 hushkit when powered by P&W JT8D-7, JT8D-9, JT8D-15, or JT8D-17 Series Engines.

ST223CH 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 737-100 Series, Boeing 737-200 Series, and Boeing 737-200C Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 737-100 SeriesA16WEBoeing 737-200 SeriesA16WEBoeing 737-200C SeriesA16WE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 737-100 Series and Boeing 737-200 Series, and 1 more aircraft configuration 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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