FAA-listed STC holder

Northrop Grumman Corporation California Microwave Systems STCs

The Jun 30, 2026 FAA DRS snapshot lists 13 selected supplemental type certificates with status Current under Northrop Grumman Corporation California Microwave Systems. The records span 6 public aircraft directories and 6 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

listed Current at snapshot

aircraft directories

modification categories

Apr 22, 2008

latest recorded revision

Modification mix

Avionics5 Cabin and interiors2 Other aircraft modifications2 Fuel systems2 Cargo and special mission1 Aircraft performance1

Aircraft represented

Hawker Beechcraft B30076 STCs Raytheon Aircraft B30050 STCs Raytheon Aircraft 30046 STCs Aerospatiale (Societe Nationale Industrielle Aerospatiale) ATR42-32018 STCs Bombardier-Rotax GmbH DHC-7-10210 STCs Bombardier-Rotax GmbH DHC-7-1034 STCs

Recently revised records

Showing the 13 most recently revised records. Category directories provide the complete paginated discovery path.

13 displayed records.

Search every indexed record for this holder. The table below contains the recently revised records shown on this page.

Northrop Grumman Corporation California Microwave Systems supplemental type certificates, aircraft applicability, source status and dates
STC and modification	Aircraft / model / TC	Source status and dates	Holder and authority
SA02528NY Installation of Cabin Interior Modification. Cabin and interiors View record	Hawker Beechcraft B300TC A24CE	Current at cited snapshot Revised Apr 22, 2008 Application: Jun 11, 2007	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
SA02456NY Upgrade of an existing Rockwell Collins TDR-94D Mode S Transponder system. Avionics View record	Hawker Beechcraft B300TC A24CE	Current at cited snapshot Revised Aug 30, 2007 Application: Aug 8, 2007	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
SA00240BO Installation of Auxiliary Aircraft Power System. Other aircraft modifications View record	Raytheon Aircraft 300TC A24CE Raytheon Aircraft B300TC A24CE	Current at cited snapshot Revised Dec 18, 2006 Application: Jun 22, 2005	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
SA02306NY Upgrade of an existing Rockwell Collins TDR-94D Mode S Transponder system to comply with the European Elementary and Enhanced Surveillance requirements. Avionics View record	Raytheon Aircraft B300TC A24CE	Current at cited snapshot Revised Oct 24, 2006 Application: Apr 24, 2006	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
SA01981NY Installation of a Universal Avionics Terrain Awareness Warning System (TAWS). Avionics View record	Raytheon Aircraft 300TC A24CE Raytheon Aircraft B300TC A24CE	Current at cited snapshot Revised Feb 8, 2005 Application: Mar 12, 2004	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
SA01980NY Installation of a cabin power bus system. Cabin and interiors View record	Raytheon Aircraft B300TC A24CE	Current at cited snapshot Revised Aug 31, 2004 Application: Mar 12, 2004	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
ST01925NY Installation of dual FMS Universal UNS-1F MMMS and dual Honeywell LASEREF-V IRS system. Avionics View record	Aerospatiale (Societe Nationale Industrielle Aerospatiale) ATR42-320TC A53EU	Current at cited snapshot Revised Jun 30, 2004 Application: Mar 12, 2004	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
SA1082NE Installation of CMI special mission configuration. (DHC -7-102 S/N 095). Cargo and special mission View record	Bombardier-Rotax GmbH DHC-7-102TC A20EA	Current at cited snapshot Revised Apr 16, 2003 Application: Nov 14, 1991	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
ST00042AT Installation of dual auxiliary equipment rack assemblies. Other aircraft modifications View record	Bombardier-Rotax GmbH DHC-7-103TC A20EA	Current at cited snapshot Revised Apr 16, 2003 Application: Mar 13, 1992	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
ST00147DE Increase maximum ramp and takeoff weights. (DHC-7-103 S/N 3 AND SUBS). Aircraft performance View record	Bombardier-Rotax GmbH DHC-7-102TC A20EA Bombardier-Rotax GmbH DHC-7-103TC A20EA	Current at cited snapshot Revised Apr 16, 2003 Application: Apr 21, 1994	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
ST00181DE Installation of a Fuel Jettison System for the de Havilland Model DHC-7-102 and -103. (DHC-7-103 3 and Subs). Fuel systems View record	Bombardier-Rotax GmbH DHC-7-102TC A20EA Bombardier-Rotax GmbH DHC-7-103TC A20EA	Current at cited snapshot Revised Apr 16, 2003 Application: Apr 28, 1994	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
ST01339NY Installation of UNS-ID Flight Management System with Trimble 2101 GPS. Avionics View record	Bombardier-Rotax GmbH DHC-7-102TC A20EA	Current at cited snapshot Revised Apr 16, 2003 Application: Oct 14, 1999	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record
SA1527NM Installation of Foxboro fuel management indication system. Fuel systems View record	Bombardier-Rotax GmbH DHC-7-100TC A20EA Bombardier-Rotax GmbH DHC-7-102TC A20EA	Current at cited snapshot Revised Dec 13, 2002 Application: Dec 13, 2002	FAA holder: Northrop Grumman Corporation California Microwave Systems FAA authority record