# STC SA80RM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Sierra Industries Inc, United States - Description: Installation of extended range fuel tank and relocation of aft pressure bulkhead. - Applied: March 3, 1976 - Status date: July 31, 2017 - Product: Aircraft, Small Airplane - Certification basis: Part 21, Part 25 - Data sheets: [TCDS A22CE](https://openairdocs.org/tcds/A22CE) - Certificate PDF: https://openairdocs.org/files/sha256/f1/81/f18106ef95a0a17c8871f0b5940bb975b66ef7e7220e88b85bdde086008dbfa0 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E7299BE8739A5D088625871B004A3BE4.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA80RM ## ADs that name it (0) None. ## Approved models (2) - Textron Aviation Inc. 500 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE)) - Textron Aviation Inc. 550 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE)) ## 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. FAA Form 8110-2 (5/14) Page 1 of 3 Reissued on July 31, 2017 to supersede the original STC, which has been lost or misplaced. Number: SA80RM Part 25 of the Federal Aviation Regulations. Original Product – Type Certificate Number: A22CE Make: Cessna Model: 500 & 550 Installation of extended range fuel tank and relocation of aft pressure bulkhead, in accordance with Branson Aircraft Corporation List of Drawings and Documents No. 91800, Sheets 1 and 2, Revision A, dated 9/10/76, approved September 16, 1976, or later FAA approved revision. Date of Application: March 03, 1976 Date Reissued: 6/9/98; 7/21/05; 7/31/17 Date of Issuance: September 16, 1976 Date Amended: 12/15/76; 1/22/79; 11/8/82 Signature Title Jim Grigg Manager, Fort Worth A CO Branch, Compliance & Airworthiness Division Sierra Industries, Ltd. 122 Howard Langford Drive Uvalde, TX 78801 FAA Form 8110-2 (5/14) Page 2 of 3 Transfer the ownership of Supplemental Type Certificate Number: SA80RM To (Name and address of transferee) From (Name and address of grantor) United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA80RM FAA Form 8110-2 (5/14) Page 3 of 3 Date of Issuance: September 16, 1976 Date Amended: November 8, 1982 Date of Reissuance: July 31, 2017 1. For Cessna Model 500, FAA approved Airplane Flight Manual Supplement dated September 16, 1976; for Model 550, FAA approved Airplane Flight Manual Supplement dated January 22, 1979 or subsequent FAA approved revision required. 2. Cessna 500, Serial Numbers 0001 and up, and Cessna 550, Serial Numbers 0001 and up, provided it is determined that this Supplemental Type Certificate is compatible with later design changes to these model aircraft. 3. Cessna SB 34-15 or SB 34-23, reference Note 7 of Type Certificate Data Sheet A22CE, latest revision, must be incorporated unless modified aircraft with full cabin tank fuel, minimum crew, and required ballast results in an aircraft which is within maximum zero fuel weight and C. G. limits. 4. This approval should not be extended to aircraft of this model on which other previously appr oved modifications are incorporated unless it is determined that the interrelationship between this change and any other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. 5. 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. -END- United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA80RM FAA Form 8110-2 (5/14) Page 4 of 3 ## Every issue (2) - July 31, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f1/81/f18106ef95a0a17c8871f0b5940bb975b66ef7e7220e88b85bdde086008dbfa0) - July 21, 2005: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/87/55/8755fb72bb976a5872291d0f4724d99390c1b4e3466636d1080f99d9831756af) --- 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.