# STC ST00232DE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Sierra Industries Ltd., United States - Description: Installation of a cabin door optically flat window. - Applied: March 5, 1996 - Status date: July 31, 2017 - Product: Aircraft, Large Airplane - Certification basis: Part 21, Part 25 - Data sheets: [TCDS A22CE](https://openairdocs.org/tcds/A22CE) - Certificate PDF: https://openairdocs.org/files/sha256/a5/18/a51870ee4e9a7ed64f74956ef0b93ef26d0f780855a046431cb99017190b13ad - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2DB001720BC0B24B86258726004E6A60.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/ST00232DE ## ADs that name it (0) None. ## Approved models (1) - Textron Aviation Inc. 560 ([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: ST00232DE Part 25 of the Federal Aviation Regulations. Original Product – Type Certificate Number: A22CE Make: Cessna Model: 560 Installation of a cabin door optically flat window, in accordance with Branson Aircraft Corp. Drawing No. 91A760, Rev. D, dated May 30, 1996 FAA approved May 30, 1996, or later FAA approved revision. Date of Application: March 05, 1996 Date Reissued: 12/24/97; 7/21/05; 7/31/17 Date of Issuance: May 30, 1996 Date Amended: June 20, 1996 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: ST00232DE 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: ST00232DE FAA Form 8110-2 (5/14) Page 3 of 3 Date of Issuance: May 30, 1996 Date Amended: June 20, 1996 Date of Reissuance: July 31, 2017 1. FAA approved Airplane Flight Manual Supplement FMS-966, dated May 30, 1996, or later FAA approved revision is required. 2. Airworthiness limitations FAA approved May 30, 1996, or later FAA approved revision contained in the Branson Report MMS-962 Maintenance Manual Supplement is a required part of this installation. 3. This approval should not be extended to aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. 4. A copy of this certificate and Aircraft Flight Manual, dated May 30, 1996, or later FAA approved revision, must be maintained as part of the permanent records for the modified 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: ST00232DE FAA Form 8110-2 (5/14) Page 4 of 3 ## Every issue (2) - July 31, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a5/18/a51870ee4e9a7ed64f74956ef0b93ef26d0f780855a046431cb99017190b13ad) - July 21, 2005: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/a1/ae/a1aebbda1689e8b654f73938963aa789b618ecce689a9c45b288a7b082a8cb37) --- 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.