# STC SA1395SO - Type: Supplemental type certificate - Status: Current, Amended - Holder: Saf-Air Products Inc., United States - Description: Remove drain plug, Cessna Part Number MS20913-10 or MS20913-1D, from the fuel selector valve and replace with Part Number CAV-110D (MT-1072) or CAV-110H-4D (CM-1072) - Applied: September 20, 1982 - Status date: June 13, 2023 - Product: Aircraft, Small Airplane - Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12) - Certificate PDF: https://openairdocs.org/files/sha256/04/4c/044ce089e9abc62aeec73fb7c1acf5c82faa77bdf93a34a7cf376498c3540414 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172462102120230620155116.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA1395SO ## ADs that name it (0) None. ## Approved models (14) - 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 ([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 ([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 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)) ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. United States of America Department of Transportation Federal AviationAdministration Supplemental Type Certificate SA1395SO Number: This certificate issued to: Saf-Air Products, Inc. 32839 Manor Park Drive Garden City, MI 48135 Part 3 of -C-iv-i-l -A_i r_R_e_g_u l_a_t i_o n_s . Original Product rtype Certificate']{um6er: 3A17 Make: Cessna Model: * See Page 3 Description of Type Design Change: Remove drain plug, Cessna Part Number MS20913-10 or MS20913-1D, from the fuel selector valve and replacewith Part Number CAV-110D (MT-1072) or CAV-110H-4D (CM-1072), in accordance with installation instructions dated January 12, 2004, or later FAA approved revision. This approval should not be extended to other airplanes of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications wiil produce no adverse effectes upon the airwortiness of that airplane. (See continuation sheet 3 of 3) Date of Application: _0_9_/2_0_/_1_9_82_ Date Reissued: 09/18/1989, 09/28/2020 Date of Issuance: 12/23/1982 Date Amended: 06/13/2023 By Direction of the Administrator (for) Christina M. Underwood Title: Manager, East Certification Branch FAA Form 8110-2 (06/20) SUPERSEDES PREVIOUS EDITION Page 1 of 3_ United States of America Department of Transportation Federal AviationAdministration Supplemental Type Certificate SA1395SO Number: Transfer Endorsement Transfer the ownership of Supplemental Type Certificate Number: _S_A_1_3_9_5S_O Saf-Air Products, Inc. 32839 Manor Park Drive Garden City, MI 48135 FAA Form 8110-2 (06/20) SUPERSEDES PREVIOUS EDITION Page 2 of _3 United States of America Department of Transportation Federal AviationAdministration Supplemental Type Certificate (Continuation Sheet) Number: SA1395SO Limitations and Conditions (Cont.) The following placard, located on the instrument panel in clear view of the pilot is required when the drain is installed. "This aircraft is equipped with a belly drain. Drain daily or before each flight." *Model C-172 2800 - 46754 (1956, 1957, 1958, 1959) C-172A 46755 - 47746 (1960) C-172B 17247747 - 17248734 (1961) C-172C 17248735 - 17249544 (1962) C-172D 17249545 - 17250572 (1963) C-172E 17250573 - 17251822 (1964) C-172F 17251823 - 17253392 (1965) C-172G 17253393 - 17254892 (1966) C-172H 17254893 - 17256512 (1967) C-172K 17257162 - 17258486 (1969) 17258487 - 17259223 (1970) C-172L 17259224 - 17259903 (1971) 17259904 - 17260758 (1972) C-172M 17256943, 17260579 - 17261898 except 61445 & 61758 (1973) 17261899 - 17263458 (1974) 17263459 - 17265684 (1975) 17265685 - 17267584 (1976) Date of Issuance: December 23, 1982 -End- ## Every issue (3) - June 13, 2023: Amended, Current. [certificate](https://openairdocs.org/files/sha256/04/4c/044ce089e9abc62aeec73fb7c1acf5c82faa77bdf93a34a7cf376498c3540414) - September 28, 2020: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/62/56/6256931a2082298a9f5006b2d1e19d1ad8a0388e4e9cd74389460a905069704b) - March 17, 2004: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/f3/59/f359c4b7251443c1873620e138d3f5eb3527ddcf94a12b88cc384477140e6d9c) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.