STC SA904SW
FAA DRS lists SA904SW as Current · Reissued, held by Associated Air Center, Inc. - c/o CT Corporation System, for Lockheed Martin 1329-23D, Lockheed Martin 1329-23A, and Lockheed Martin 1329-23E, and 1 more aircraft configuration. Recorded change: Installation of Mach Airspeed Warning Switch. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of Mach Airspeed Warning Switch.
SA904SW 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: Lockheed Martin 1329-23D, Lockheed Martin 1329-23A, and Lockheed Martin 1329-23E, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Lockheed Martin 1329-23D and Lockheed Martin 1329-23A, and 2 more aircraft configurations model, serial range, and configuration?
- 02Which limits, loading assumptions, performance data, and supplements apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related aircraft performance STCs
Installation of Aeromech 8047 Standby Altimeter and Aeromech 8059 airspeed indicator.
FAA holder: Textron Aviation Inc
Installation of Dual Collins ADS-86 Air Data Computer System with ALI-850B Altimeters and ARP-86 Airspeed reference panels.
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Pratt & Whitney R-985-APS engines per STC SE4-864 in aircraft with Beech 9,900 lbs. gross weight kit 766-1.
FAA holder: Textron Aviation Inc