STC SA7789SW-D

Voted 3otn rf 9tatria Bepartmrnt of Transportation— federal atriation administration topplcmcntal 'Cjp Certificate SA7789SW-D S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 g^^^^k^£&M<«<y^i»»»g£,u^<<*^^»-^^ mrrA Jfft mi'rifrrJt^i'nftit rcnmratnoiiA <fz\avf 3 W^* C1 V1 1 Air 2A13 . PIPER '. PA-28-235 Installation of S-TEC System 60 Two Axis Automatic Flight Guidance System, Model ST-305, with Optional Automatic Electric Trim System according to Bulletin No. 405, dated 1-18-91 and Master Drawing List No. 92533, dated 1-18-91 with Optional Flight Director Steering Horizon and/or later FAA Approved revisions of the above data (14 Volt System).

1. Eligible only on Piper Model PA-28-235, S/N 28-7310001 & Up.

2. FAA/DAS Approved Airplane Flight Manual Supplement, P/N 89908, dated 2-14-91 is required for Piper Model PA-28-235, S/N 28-7310001 & Up and/or later FAA Approved revisions of the above supplement.

3. Compatibility of this modification with other previously approved modifications roust be determined by the installer.*^&a^.«M^^.4<^UW£V^.<z£<S»-.4<*^^ £^^H«»^^^f»>a'.4^^ S&c/rnin4±£r<i£rr*^^e \ "vrramKi Strn' 1-21-91 2-14-91 William J^ Thomas DAS Staff Coordinator, DAS 5 SW (Till*) Any alteration oftkis certificate it punishable by a fine of not exceeding Si ,000, or impritonmenl not exceeding 3 yean, or both.

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