Installation of Lycoming IO-360-B1B engines and Hartzell HC-C2YR-2RA/7666A-2 propellers. Gross weight increase to 3684 lbs on PA-23 and 4000 lbs on PA-23-160. Data required: PA-23: Doyn dwg 1500, Rev. C, except for Hartzell HC-922K-2B/8447-12A props. Doyn dwg 1507, Rev. C, PA-23-160: Doyn dwg. 1800, Rev. C, except for Hartzell HC-922K-2B/8447-12A props. Dwg. 1807, Rev. C.

Please contact modification supplier for further details.

STC Status: Reissued
STC Date: 14/07/11
Responsible Office: Atlanta Aircraft Certification Office (ACE-115A), Tel: (404) 474-5500

Piper Aircraft, Inc.

• PA-23
• PA-23-160