STC SA8033SW

3Kmteb States ©f .America Pefrarhttmi of ®rmt«p0rte4tJtm - ,3frfttral JVbralton Ol^rttfttate SA8033SW Tovya Group, Inc. d.b.a. Zeftronics 1622 E. Whaley Street Longview, TX 75601 Civil Air 3A12 ^$6a&.- Cessna ^6tM&S.- 172 Installation of Zeftronics Over-Voltage Sensor Unit P/N V11100 (Product Configuration File ZOLPCF), in accordance with Zeftronics drawing ZOOIDL, dated 1/31/91, or later FAA approved revision.

In addition to the Cessna model 172, this STC is applicable to the following Cessna models: F172, FR172, P172, 150, 150A, A150, FA150, 177, 177RG, F177RG, 180, 182, T182, 185, 188, T188, 206, T206, 207, T207, 210.

(See continuation sbeet 3 of 3) iv*-.• January 31, 1991 30<t/i>s**u*ee*S.- May 12, 1998 28, 1991 ^fe*fetvnen*6*S.- January 06, 1992 / (Signature) Gary B: Roach, Acting Manager Special Certification Office Southwest Region (Title) Any alteration of thia certificate la puniahable by a fine of not exceeding $1,000, or imprisonment not exceeding 3 yeara, or both.

of tEranspnrfcrtwm - Jlfsittral JMnattmt JVhmtm«i*a±tim ©tjpe (Esrttftcate ((Emtttmtatimt Ji&fyed:)

Date of Issuance: May 28, 1991 Date Amended: January 06, 1992 (Continued):

Compatibility of this modification with previously installed equipment must be determined by installer.

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

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PAA Form 9110-2-1(10-69) Page 3 of 3

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, Stale, and <7/> code j from (Name of grantor) (Print or type) (Address of grantor) (Number and street) ( C'ltv. Sidle, and -~Vr code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):