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Aircraft STC directory

Piper Aircraft PA-31 STCs

The cited FAA DRS record snapshots contain 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
Aug 14, 2026
latest recorded revision

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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