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Other aircraft modifications

STC ST04402CH

FAA DRS lists ST04402CH as Current · Amended, held by Envoy Aerospace LLC, for Boeing 737-900ER Series, Boeing 737-700 Series, and Boeing 737-800 Series, and 1 more aircraft configuration. Recorded change: Installation of Kidde Halotron BrX portable fire extinguishers to replace existing Halon 1211 fire extinguishers. Snapshot dated June 30, 2026.

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FAA-listed holder
Aircraft configurations
4
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

ST04402CH 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 737-900ER Series, Boeing 737-700 Series, and Boeing 737-800 Series, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

FAA record reference

STC number
ST04402CH
Product
Aircraft
Country
United States
Application date
March 14, 2019
Revision date
October 1, 2024
CFR references
Part 25