The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Sierracin/Sylmar Corporation

Named as the FAA publishes it on its approvals.

Holds 3 approved modifications, most of them for the Bombardier DHC-8 Dash 8 and Q400. FAA spelling: Sierracin/Sylmar Corporation.

Approved modifications 3 · newest first

Bombardier DHC-8 Dash 8 and Q400 2Dehavilland DHC-8 1Boeing 747 1Boeing Of Canada/Dehav Div DHC-8 1
2013-10-30SA2415NM · The number 2 Cockpit Side Windows installed. · 747-100 Series, 747-100B Series, 747-100B SUD Series
2005-02-24ST01840NY · Installation of Sierracin/Sylmar Corporation 802600-11-/12 windshield assembly. · DHC-8-100 Series, DHC-8-200 Series, DHC-8-300 Series
2004-05-11ST01839NY · Installation of Sierracin/Sylmar Corporation P/N 802600-09/-10 Windshield Assembly · DHC-8-101, DHC-8-102, DHC-8-103

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.