STC SA1221SW

• SltaiJ*ti/jf> ^Department of tensportation —federal aoiation administration oipplemental l^gpe Certificate SA1221SW Century Flight Systems, Inc.

P.M. 1195 P. 0. RO-K 610 Mineral Wells, TX 76067 aj4ffefn^n.£^ ^,^0^ 3 *^J&t< Civil Air 3A12 Cessna 172, 172A, 172B, 172C, 172D, 172E, 172F, 172G, 172H, 1721, 172K, 172L .ri,a&.

Installation of Mitchell Automatic Flight System Model AK312 consisting of Century I with optional Omni Tracker System according to Bulletin No. 420 Revision (7) dated June 11, 1973 and Master Drawing List 87A319 Revision D dated June 11, 1973.

FAA Approved Mitchell Industries, Inc. Placard 13A634-312 is required for Models 172D, E, F, G. H. I, K, and L; Placard 13A681-312-1 is required for Models 172, A, B, and C.

Eligible on landplane only.

October 20, 1970 November 18, 1970 ^°F%> °ther Piously approved modifications ^ *•**»««/- 4-9-73; 7-24-73; 7-9-84, Revision 3 ,/1u-4/irfr/('i-ri «V trie •^f Manager, Aircraft Certification Division Southwest Region

TAu ttrttficatr may be transferred in accordance with f-AR 21.47.

Cn IONS' '['he Iran sf IT en dorse in cm hclovv may he used (o nuliK tin- appropriate h'A A (-'eg urn a I OfMtr ill" the Iransfrr of ihis Supplemental Typ< Crrtidt an- I'lu- I-'AA " ill TLISMH- liii- i;enifi< ale in the name ot th<- Iransferee and forward it 10 him.

TRANSFER ENDORSEMENT Transfer the ownership ni'Supplemental Type Certificate Number __ to (Name o/ (rans/erte) (Address of transferee) (Nvmbir and strttt) fCi/f, SlaU, OTirl ZIP codi) from (Name of grantor) (Print or typt) (Address oj grantor) (pfvmbti arid sfrret) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink).