STC ST10404SC-D
FAA DRS lists ST10404SC-D as Current · Amended, held by Boeing Commercial Airplane Group, for Boeing 747-200B Series. Recorded change: Installation of Audio Infrastructure Upgrade (AIU) (Updated Communication Control Stations, Mission Interphone Replacement with Multi-Conferencing, Automatic Switching, Secure and Non-Secure Communication, Laptop Modem Jacks, New Rack Enclosures, Audio Recording System, New Un-Interruptible Power Supply System). Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
ST10404SC-D 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.
Related electrical systems STCs
Installation of Lead Acid Battery Maintainer.
FAA holder: Air Methods Corporation
The 12 volt 24 volt D.C. electrical generating system is replaced by an alternator system.
FAA holder: Hartzell Engine Technologies, LLC
Installation of a Protective Device in the ground side of the Battery and External Power relays.
FAA holder: Twin Commander Aircraft LLC
Installation of alternator and voltage regulator.
FAA holder: Hartzell Engine Technologies, LLC
FAA record reference
- STC number
- ST10404SC-D
- Product
- Aircraft · Large Multi-Engine
- Country
- United States
- Application date
- July 24, 2001
- Revision date
- April 17, 2006
- CFR references
- Part 21, Part 25