STC SA7204SW-D

tinted <StBttJrfa«TW Btpartmrnt of transportation—jfedcral atriation administration Supplemental 'Cujc Certificate SA7204SW-D r S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, Texas 76067 t-^p^Jnt'^otf'PttrtnO'^fetfuief^ti^n ^£n*MmtS<ifi'f>n±^nc6Jec*na</if>nA Federal Aviation A17WE Piper PA-60-600 (Aerostar 600) Installation of S-TEC System 60 Pitch Stabilization System, Model ST-454, with Optional Automatic Electric Trim System, according to Bulletin No. 554, dated 1-03-90 and Master Drawing List No. 92498, dated 1-03-90 and/or later FAA Approved revisions of the above data (28 Volt System).

1. FAA/DAS Approved Airplane Flight Manual Supplement, P/N 89837, dated 1-26-90 is required for Piper Model PA-60-600 (Aerostar 600) and/or later FAA Approved revisions of the above supplement.

2. Comp at ability of this modification with other previously approved modifications must be determined by the installer.

^Xr/m^njA 1-Q9-90 1-26-90 (Sifnaturt) Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW——————(Ttltt)———————

Tfiis cerli/icalt may ke transfrrrtJ in tucorjance with FAR 21.47.

rAAFow> (110-2 (!»-«•)

INSTRUCTIONS : The transfer endorsement below may be used to notify the appropriate FAA Regional Office of the transfer of this Supplemental Type Certificate.

The FAA will reissue the certificate in the name of the transferee and forward it to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (9^ame of transferee.)

(iMdress of transferee) Cumber ami street) (City, State, and ZIP code.)

from (y^cune of grantor) ('Print or type) (Address of grantor) (9fim6er and street) (City, State, and ZIP code) Exent of Authority (If licensing agreement) :

Signature of grantor (In inQ : __ __ Page 2 of 2