Installation of Hartzell HC-C4YR-2L/-2/FJC7663D-6Q/FC7663D-6Q Propellers, cowling changes, and winglets or wing tip extension per Colemill Enterprises, Inc., drawing 72000, Revision E, August 10, 1983, and Installation Instruction for modification of Piper Navajo Model PA-31-350 revised August 10, 1983. Colemill Enterprises, Inc., Process Spectification for Drawings 64000 and 66000, dated August 31, 1977. Colemill Enterprises, Inc., Process Specifications #500 for Piper Wing Caps and Winglets, dated September 1, 1981. Later FAA approved revisions to 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-31-350