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Aircraft STC directory

Piper Aircraft PA-31 STCs

The Jun 30, 2026 FAA DRS snapshot contains 53 selected supplemental type certificates with status Current whose public applicability data names the Piper Aircraft PA-31. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

53
listed Current at snapshot
25
holder directories
11
modification categories
May 14, 2026
latest recorded revision

Modification demand surface

Other aircraft modifications26Cargo and special mission4Engine and powerplant4Fuel systems4Flight controls3Avionics2Cabin and interiors2Electrical systems2Landing gear and brakes2Aircraft structures2Propellers2

Recorded holders

BLR Aerospace LLC.5S-TEC Corporation4Mike Jones Aircraft Sales Inc.4Garmin International Inc3Griggs Aircraft Refinishing LLC2Hartzell Engine Technologies, LLC2Airline Fueling Inc.2Aviation Fabricators Inc2FFC Manufacturing2Kaman Corporation Aircraft Wheel and Brake LLC1Honeywell International Inc (Bendix King)1Certex Aviation LLC1Honeywell International Inc1Air Comm Corporation1LifePort LLC1Spectrum Aeromed LLC dba Spectrum Aeromed1Purolator Facet, Inc1Knots 2U Ltd.1Goodrich Corporation1BE Aerospace Inc. DBA SMR Technologies, Inc.1

Recently revised PA-31 STCs

Showing the 53 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SA970SOFuel systems

Installation of Lycoming TIO-540-J2BD or TIO-540-J2B engines and Hartzell propellers HC-C4YR-2/FC7663D-4R or HC-C4YR-2/FC7663D-6Q, additional fuel pump and related cowling changes.Modification Drawing Piper Navajo PA-31 Navajo-Panther-Drawing 68000, Revision D, Dated 5/17/82. Installation Instructions for Modification of Piper Navajo Model PA-31 and PA-31-325, Drawing 68000, change D dated 5/17/82 and Supplemental Type Certificate (STC) SA970SO. Installation Procedures Boost Pump PA-31 Drawing 62000 A Change dated November 30, 1977. (PA-31 Only) Piper Kit 760-905 Colemill Enterprises, Inc., Process Specification for Drawings 64000 and 66000, dated August 31, 1977. Colemill Enterprises, Inc., Process Specification #500 for Piper Wing Caps and Winglets, dated September 1, 1981. Later FAA approved revisions of the above data are acceptable.

FAA holder: Mike Jones Aircraft Sales Inc.

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