STC SA187SW
FAA DRS lists SA187SW as Current · Reissued, held by Signature Flight Support Corporation, for Lockheed Martin Aeronautics 18. Recorded change: Firewall fluid shutoff valve installation. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Firewall fluid shutoff valve installation.
SA187SW 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: Lockheed Martin Aeronautics 18. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Lockheed Martin Aeronautics 18 model, serial range, and configuration?
- 02Which powerplant configuration, limits, instruments, and maintenance data apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related engine and powerplant STCs
Modification of engine exhaust system for improved engine performance by installation of Power Flow Systems, Inc. Tuned Exhaust System per Master Drawing List, PFS-13740-00, Revision, IR, dated: 06/05/03 or Master Drawing List, PFS-13741-00, Revision, IR, dated: 11/26/03 and Installation Instructions Report, PFS-13750-00, Revision A, dated: 08/30/02 or Installation Instructions contained in Report PFS-13751-00, Revision, IR, dated: 11/26/03 or later FAA approved revision.
FAA holder: Power Flow Systems Inc
Replacement of an existing Pratt and Whitney model 1340 S3H1 engine and Hamilton Standard Model 12D40 propeller with a Pratt and Whitney model 1340 S3H1-G engine and Hamilton Standard Model 3D40 Propeller. Limited to installation on serial number 1541R ONLY.
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This STC converts the Mooney M20L to essentially an M20R. The STC requires minor changes to the aircraft structure and includes installation of a Continental IO-550-N16B engine (The engine is operated at the performance limits of 280 hp at 2500 rpm just like the Continental IO-550-G used on the Mooney M20R.) The STC is to be accomplished in accordance with Mod Works Master Document List, MW8800-000, Revision "B", dated April 30, 2003, or later FAA approved revision.
FAA holder: Mod Works Inc
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FAA holder: MT-Propeller USA Inc.