STC SA5990NM-D
FAA DRS lists SA5990NM-D as Current · Reissued, held by United Airlines Inc, for Boeing 767-300 Series and Boeing 767-200 Series. Recorded change: Modifies the aircraft to install a one way check valve in the yaw damper actuator hydraulic return port. The installation is in accordance with DAS-1-WE Approved United Air Lines Drawing List No. 5990 dated April 27, 1994, or later FAA approved revisions. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA5990NM-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 767-300 Series and Boeing 767-200 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related other aircraft modifications STCs
Installation of Precise Flight, Inc. (PFI) LED Position Lights.
FAA holder: Precise Flight Inc
Removal of air conditioning scoop.
FAA holder: Kelly Aerospace Thermal Systems LLC
FAA record reference
- STC number
- SA5990NM-D
- Product
- Aircraft · Large Multi-Engine
- Country
- United States
- Application date
- April 1, 1994
- Revision date
- November 30, 2011
- CFR references
- Part 21, Part 25