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Avionics

STC ST00504DE-D

FAA DRS lists ST00504DE-D as Current · Reissued, held by Learjet Inc., for Learjet Learjet 31. Recorded change: Installation of Dual IS&S Air Data Display Unit (ADDU) systems. Snapshot dated June 30, 2026.

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FAA-listed holder
Learjet Inc.
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

ST00504DE-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: Learjet Learjet 31. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Learjet Learjet 31A10CE

Related avionics STCs

SA01041WI-DAvionics

Installation of the Bendix/King KMD 850 Multi-Function Display System with optional Traffic, Terrain and Weather sensors. REQUIRED DATA: 1. Master Drawing List 159-08278-0001, Revision A, dated 12-17-2001; 2. If the KMH 880 is installed, Airplane Flight Manual Supplement 006-00897-0000, Revision -, dated 1-07-2002, or 3. If the KTA 870 is installed, Airplane Flight Manual Supplement 006-00897-0001, Revision -, dated 1-07-2002. Approved for serial numbers 525-0001 through 525-0359.

FAA holder: Textron Aviation Inc

View record

FAA record reference

STC number
ST00504DE-D
Product
Aircraft · Small Multi-Engine
Country
United States
Application date
May 16, 2001
Revision date
April 22, 2005
CFR references
Part 21