# STC SA1398SO - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Saf-Air Products Inc., United States - Description: Remove drain plug AN-806-6 from fuel line drain in belly of aircraft and replace with drain valve MT-101-1. (See limitations) - Applied: November 8, 1982 - Status date: July 15, 2019 - Product: Aircraft, Single-Engine - Certification basis: Part 3, Part 21 - Data sheets: [TCDS 3A19](https://openairdocs.org/tcds/3A19), [TCDS 5A2](https://openairdocs.org/tcds/5A2) - Certificate PDF: https://openairdocs.org/files/sha256/b3/c5/b3c50fe6198eb84fa69e60e61dd8d2df78117b0b812f4aaadd3fd4338a80ddb4 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/877B2508896D319186258454005BCE04.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA1398SO ## ADs that name it (0) None. ## Approved models (7) - The Cessna Aircraft Company 140A ([TCDS 5A2](https://openairdocs.org/tcds/5A2)) - The Cessna Aircraft Company 150 ([TCDS 3A19](https://openairdocs.org/tcds/3A19)) - The Cessna Aircraft Company 150A ([TCDS 3A19](https://openairdocs.org/tcds/3A19)) - The Cessna Aircraft Company 150B ([TCDS 3A19](https://openairdocs.org/tcds/3A19)) - The Cessna Aircraft Company 150C ([TCDS 3A19](https://openairdocs.org/tcds/3A19)) - The Cessna Aircraft Company 150D ([TCDS 3A19](https://openairdocs.org/tcds/3A19)) - The Cessna Aircraft Company 150E ([TCDS 3A19](https://openairdocs.org/tcds/3A19)) ## 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. Number SA1398SO This certificate issued to Part 3 of the Civil Air Regulations. Description of Type Design Change: Remove drain plug, AN-806-6, from fuel line drain located in belly of aircraft and replace with drain valve, MT-101-1, in accordance with Middle Tennessee Aircraft Components installation instructions approved December 23, 1982. Limitations and Conditions: This approval should not be extended to other aircraft 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 other previously approved modifications will produce no adverse effect upon the airworthiness of that airplane. 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. This certificate and the supporting dat a which is the basis for approval shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration. SAF-AIR Products, Inc. 32839 Manor Park Garden City, MI 48135 3A19 Make : Cessna Model: See Page 2 Date reissued: September 18, 1998; February 19, 2003; April 29, 2003; July 15, 2019 Date amended: August 1, 1991; (Signature) Roy E. Boffo Manager, Propulsion & Program Management Section Chicago Aircraft Certification Office Compliance & Airworthiness Division (Title) Date of application: November 08, 1982 Date of issuance: December 23, 1982 Number SA1398SO Date of Issuance: December 23, 1982 Date of Amendment: August 01, 1991 Limitations and Conditions Cessna 150- Serial Numbers: 617, 17001 – 17999, 59001 – 59018 150A -628, 15059019 – 15059350 150B – 15059351 – 15059700 150C – 15059701 – 15060087 150D – 15060088 – 15060772 150E – 15060773 – 15061532 Date of Issuance: December 23, 1982 Cessna 149A – Serial Numbers: 15200 – 15724 year 1949 – 1951 Date Amended: August 1, 1991 Limitations and Conditions: (Continued) The following placard, located on the instrument panel in clear view of the pilot, is required when this drain is installed. “This aircraft is equipped with a belly drain. Drain daily or before each flight.” --END-- ## Every issue (1) - July 15, 2019: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/b3/c5/b3c50fe6198eb84fa69e60e61dd8d2df78117b0b812f4aaadd3fd4338a80ddb4) --- 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.