What it approves
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.
What the certificate says
From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.
ADs that name this STC · 1
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 2
Every issue · 3
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| February 10, 2011 | Reissued, current | Certificate |
| May 25, 2007 | Amended, earlier issue | Certificate |
| October 20, 1992 | Amended, earlier issue | Certificate |