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Aircraft STC directory

Boeing 737-300 Series STCs

The cited FAA DRS record snapshots contain 522 selected supplemental type certificates with status Current whose public applicability data names the Boeing 737-300 Series. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

522
listed Current at snapshot
154
holder directories
13
modification categories
Sep 11, 2026
latest recorded revision

Recently revised 737-300 Series STCs

Showing the 100 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

ST03355ATAvionics

Dual Installation of Universal Avionics EFI-890R EFIS on Boeing 737-300/-400 aircraft series. Installation includes 4 Flat Panel Multi Function Displays to provide a Primary Flight Display (PFD) and a Nav Display (ND) for the pilot and co-pilot, as replacement of the existing indicators, two Data Concentrator Units to interface discretes and FMS data busses, and two Vision-1 Computers that hold the terrain data base which provide Egocentric and Exocentric views on the PFD/ND respectively. This installation is in accordance with ARC Avionics Master Data List 750-053005, Rev-H, dated November 24, 2009, or later FAA approved rev's.

FAA holder: LB Aircraft Engineering LLC

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