STC SA7212SW-D

United fStstzM tf 2vrin Bepartment of transportation —jfedcral atriation administration Supplemental 'Cgpe Certificate tSU*m<069t' SA7212SW-D S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, Texas 76067 jt&J^JtJ&>uri^ 23 Federal nTr« A16EA

GULFSTREAM AEROSPACE AG-5B Installation of S-TEC System 60 Pitch Stabilization System, Model ST-457, according to Bulletin No. 557, Revision 1, dated 10-05-90 and Master Drawing List No. 92508, Revision A, dated 10-05-90 and/or later FAA Approved revisions of the above data (28 Volt System).

1. FAA/DAS Approved Supplemental Flight Manual, P/N 89852, dated 4-20-90 is required for Gulfstream Aerospace (Grumman American) Models AA-5A and AA-5B and/or later FAA Approved revisions of the above supplement.

(See Continuation Sheet, Page 2, a part of this STC.)

4-04-90 4-20-90 ^ 3Xe/minil&a&T*Jaf/A* : 10-19-90, Revision 1 (Signolurt) Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW (Title)

Tkit ctrli/teatt may tr tiamftnid in ofcordana with FAR 21.47.rxA FOM *i ift-i (io-«t|

ttnitrd Suns of amrrira Btpartmtnt of Iranaportation— jftdtral atnation administration Supplemental HTgpe Certificate(Continuation £hett) SA7212SW-D, Revision 1 Limitations and Conditions (con't.)

2. FAA/DAS Approved Supplemental Flight Manual, P/N 89852-1, dated 10-19-90 is required for Gulfstream Aerospace Model AG-5B and/or later FAA Approved revisions of the above supplement.

3. Compatibility of this modification with other previously approved modifications must be determined by the installer.

alteration nf this certificate is punishable by ajiru of not exceeding 11,000, or imprisonment not exceeding 3 years, or bnlh.

FORM 8HO-2-I (10-49) This eirlifieati may A» trantjirrid in accordanti with l-'AK .'/.V* PAGE 2 OF 2 PAGES

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 transferre and forward It to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number __ to (9{ame of transferee) (Address of transferee) (tfymder and street) (City, State, atafZlf cade) e of grantor) (Trint or type) (Address of grantor) (Jauntier and street) (City, State, andZlT code) Exent of Authority (if licensing agreement) :

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