STC SA8427SW

of ®rattBportaitxm - Jlfeittral (Afetaitmt <Aittmmsdaraitrdt (£tvtiiit&tt SA8427SW Tovya Group, Inc. d.b.a. Zeftronics 1622 E. Whaley Street Longview, TX 75601 (See attached FAA Approved Model List (AML) for a list of approved models and applicable ^0&m&f.' airworthiness regulations) Installation of an R25400 Alternator Control Unit on aircraft shown on Approved Model List in accordance with Tovya Group, Inc. dba Zeftronics, drawing list Z05PCF, dated 9-13-91, or later FAA approved data.

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

(See continuation sheet 3 of 3) cvi.• December 22, 1991 Sfafe e/tMaastce.- August 26, 1992 12, 1998 / (Signature) Gary B. Roach, Acting Manager Special Certification Office Southwest Region

Any alteration of thia certificate ie punishable by a fine of not exceeding $1,000, or iaprieonnent not exceeding 3 years, or both.

Jfcnieh Jfiate* ©f .America 0f ©rajtsportaiton - JlfsJteral JMnaitmt ,Almttmsira±tJcm ®|jp£ (Eerttftcate ((Eimttmtaium SA8427SW Date of Issuance: August 26, 1992 . (Continued):

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.

FAA Porn 6110-2-1(10-69) Page 3 of 3 Thla certificate nay be transferred in accordance iirith PAC 21.47.

FAA APPROVED MODEL LIST (AML) STC NO. SA8427SW Date of Issuance: August 26, 1992 Date Reissued: May 12, 1998 Tovya Group, Inc. d.b.a. Zeftronics 1622 E. Whaley Street Longview, TX 75601 Item i 2 3 4 5 6 7 8 Aircraft Make Cessna Cessna Cessna Cessna Cessna Cessna Cessna Cessna Aircraft Model 152, A152,F152, FA152 172, 172N, 172P, 172RG, FR172, R172, R172K, F172N, F172P 180, 180K 182, 182Q, 182R, R182, FR182, TR182, F182R, T182R 185, A185F 206, U206 207, T207 210, 210N, 210R, T210N, T210R, P210N, P210R Original Type Certificate Number 3A19 3A12 5A6 3A13 3A24 A4CE A16CE 3A21 Regulation/ Part CAR 3 CAR 3 CAR 3 CAR 3 CAR 3 CAR 3 CAR 3 CAR 3/ FAR 23 FAA Approved:

Date: May 12, 1998

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and £IP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and <7P code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):