Type certificate A23SO
Held today by Piper Aircraft INC.. It covers 3 models; about 59 aircraft on the U.S. register are built to it. Last revised June 24, 2010 (revision 20). 15 FAA orders name its designs, and 133 approved modifications build on it.
Models under this certificate 3
PA-42-1000, PA-42, PA-42-720
On this site
The data sheet on the FAA's site: the approved engines and propellers, weights, speeds and limits for each model.
FAA orders on these designs 15 · newest first
2011-11-032009-13-06 R1 · Doors · airframe structure
2009-07-242009-13-06 · Nose baggage door · airframe structure
2005-10-142005-18-20 · "FASTprop" propeller de-icers · propeller
2005-02-232005-01-19 · Mode S transponders · instruments and avionics
2004-06-072004-08-15 · TAWS8000 terrain awareness warning systems (TAWS) · instruments and avionics
2000-08-212000-14-08 · Pneumatic Deicing Boots · heating, ice protection and utility systems
1999-08-1799-14-01 · AFM - Limitations Section - Icing · other and general
1998-12-2298-25-02 · Top-mounted Antenna · instruments and avionics
Approved modifications 133 · companies holding the most
Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of October 5, 2026. Connections as data: /graph/certificate/A23SO.json.