STC SA991NW
FAA DRS lists SA991NW as Current · Reissued, held by Air Mods NW, for True Flight Holdings AA-1, True Flight Holdings AA-1A, and True Flight Holdings AA-1B, and 1 more aircraft configuration. Recorded change: Installation of model AA-5A engine mount, cowling and carburetor air box. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA991NW 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: True Flight Holdings AA-1, True Flight Holdings AA-1A, and True Flight Holdings AA-1B, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related engine and powerplant STCs
Firewall fluid shutoff valve installation.
FAA holder: Signature Flight Support Corporation
Modification of powerplant installation.
FAA holder: Signature Flight Support Corporation
FAA record reference
- STC number
- SA991NW
- Product
- Aircraft · Small Airplane
- Country
- United States
- Application date
- June 19, 1980
- Revision date
- August 20, 2019
- CFR references
- Part 21, Part 23