Description
Cirrus Aircraft 12744-004 Antenna — WAAS GPS
WAAS GPS antenna listed in the GPS antenna installations (IPC 34-50-02) for both the GPS 1 and GPS 2 positions, mounted with a gasket and four screws.
Fit, per the Cirrus Illustrated Parts Catalog:
- GPS 1 position: SR20 serials 1816 through 2199 and 2214 through 2216; SR22 serials 2578 through 3894; SR22T serials 0001 through 0410
- GPS 2 position: SR20 serials 1816 through 2126; SR22 serials 2578 through 3827; SR22T serials 0001 through 0267
Later serials list a different antenna: 12744-002 at GPS 1, and the WAAS GPS / Iridium antenna 29301-001 at GPS 2.
Serial ranges are transcribed from the Cirrus IPC. Confirm your aircraft's serial number, installed equipment and service bulletin compliance against current Cirrus documents before ordering.
Reference only — not a maintenance authority. The part numbers, effectivity and service bulletin references shown above are published as an aid to our customers and may not reflect current Cirrus data. They must not be used as the basis for installation. Mechanics must obtain and use their own current Cirrus Illustrated Parts Catalog and the current revision of any service bulletin, and must verify applicability against the aircraft serial number, service bulletin compliance and any installed STCs, before ordering or installing any part.

