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 760-905Colemill 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.

Please contact modification supplier for further details.

STC Status: Reissued
STC Date: 10/02/11
Responsible Office: Atlanta Aircraft Certification Office (ACE-115A), Tel: (404) 474-5500

Piper Aircraft, Inc.

• PA-31
• PA-31-325