# STC SA3105WE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Thermal Aircraft Company, United States
- Description: Installation of flapgap fairing. (172N, 179P, 172Q NORMAL AND UTILITY CATEGORIES)
- Applied: September 6, 1975
- Status date: November 15, 1983
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12)
- Certificate PDF: https://openairdocs.org/files/sha256/53/b1/53b1fa6e5e093af6434afdfcecf34890568c94eb66fb87d79a326f91c52a6e6d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196905410920260505194929.0001
- DRS record last changed: May 5, 2026
- Page: https://openairdocs.org/stc/SA3105WE

## ADs that name it (0)

None.

## Approved models (16)

- The Cessna Aircraft Company 172 ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172A ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172B ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172C ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172D ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172E ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172F (USAF T-41A) ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172G ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172H (USAF T-41A) ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172I ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172K ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172L ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172M ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172N ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172P ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172Q ([TCDS 3A12](https://openairdocs.org/tcds/3A12))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA3105WE This certificate issued to: Thermal Aircraft Company Purt 3 of the CiViI A i r Regulations. dated Nov. 1,1949, as amended by 3-1 through 3-12.

Original Product - Type berlificate Number: 3A12 Make: Cessna Model: - 12•-12A, 172B•+720, 172D, 1725, 172F, 172G 172H,172K,172L,172M,172N,172Q Description of Type Design Change: (Normal and Utility Categories) Company Drawing No. 5 dated September 6, 1975. Installation of flap gap fairing in accordance with Thermal Aircraft Thermal Aircraft Company Drawings No. 2,3, and 4 (September 6, 1975) contain production data for this assembly.

Limitations and Conditions: The approval of this change in type design applies basically to Cessna 172,172A,172B,1720,172D,172E,172F,172G, 72H,-721, to other aircraft of this model on which other previously approved 1721, 172M, 172N, and 172Q only. This approval should not be extended modifications are incorporated unless it is determined by the installer previously approved modifications will introduce no adverse effect upon that the interrelationship between this change and any of those other the airworthiness of that aircraft.

Dale sapplicalion: September 6, 1975 Date Reissued:

Halesf issuance: December 15, 1975 Jale unended: AUgUSt 22& 1977, NOV. 15,1983 FEDERAL ANTATION By Direction of the Administrator " Signature"

**TOMINISTRATO 47 FAA FORM 8110-2 (10-68)**

## Every issue (3)

- November 15, 1983: Amended, Current. [certificate](https://openairdocs.org/files/sha256/53/b1/53b1fa6e5e093af6434afdfcecf34890568c94eb66fb87d79a326f91c52a6e6d)
- August 22, 1977: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/c1/ce/c1ce00df39c624f1b7f6a99855605551e231b9279f0b8ce378c0d9713514045c)
- December 15, 1975: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/85/c2/85c2c37fb8e0601cad2323e3f848685b7141bca96bfe6e3e8ca44d10025f4e93)

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