STC SA155RM
FAA DRS lists SA155RM as Current · Reissued, held by Learjet Inc, for Twin Commander Aircraft 685. Recorded change: Installation of Singer SKK-1000 doppler navigation system, SKQ-601 dead reckoning computer, and Sperry C-12 compass system. Snapshot dated June 30, 2026.
FAA-listed holder
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued
Recorded modification
What the FAA record covers
SA155RM 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: Twin Commander Aircraft 685. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
Related avionics STCs
Installation of a Universal Avionics, Terrain Awareness Warning System (TAWS).
FAA holder: Gulfstream Aerospace Corporation
Installation of Avionics System for Reduced Vertical Separation Minimum (RVSM) Provisions into a Boeing 727-200 aircraft in accordance with Avionics Support Group, Inc Master Drawing List (MDL) No. 23509-MDL Rev A, dated 05/27/04, or later FAA approved revision.
FAA holder: Avionics Support Group Inc
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