STC ST09972SC
FAA DRS lists ST09972SC as Current · Reissued, held by Liebherr Aerospace Saline Co., for Boeing 747-400 Series. Recorded change: Installation of an air humidifier system in the Cockpit Environmental Control System. Snapshot dated June 30, 2026.
FAA-listed holder
Liebherr Aerospace Saline Co.
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued
Recorded modification
What the FAA record covers
ST09972SC 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 747-400 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related other aircraft modifications STCs
Installation of Turboplus Intercooler System No. 15000 or 15000-AD.
FAA holder: Turboplus Aircraft Systems, Inc.
Installation of Spoilers, Inc. intercooler system 22000.
FAA holder: Turboplus Aircraft Systems, Inc.
FAA record reference
- STC number
- ST09972SC
- Product
- Aircraft · Large Multi-Engine
- Country
- United States
- Application date
- October 5, 1999
- Revision date
- July 2, 2007
- CFR references
- Part 21, Part 25