# STC ST12091DE - Type: Supplemental type certificate - Status: Current, Issued - Holder: International Jet Aviation Service Inc., United States - Description: Installation of Nine Passenger or Less Limitation - Applied: May 29, 2025 - Status date: July 25, 2025 - Product: Aircraft, Large Airplane - Certification basis: Part 25 - Data sheets: [TCDS A3EU](https://openairdocs.org/tcds/A3EU) - Certificate PDF: https://openairdocs.org/files/sha256/59/78/5978877439ac8edf76a5bd310b262a2adfc0eec70865588b37c30d6883318633 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156962969620250902211616.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/ST12091DE ## ADs that name it (0) None. ## Approved models (1) - Textron Aviation Inc. Hawker 800XP ([TCDS A3EU](https://openairdocs.org/tcds/A3EU)) ## 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 Aviation Administration Supplemental Type Certificate Number This certificate issued to: ST12091DE International Jet Aviation Service Inc. 8511 Aviator Lane Centennial, CO 80112 25 Title 14 Code of Federal Regulations. A3EU Textron Aviation Hawker 800XP Installation of Nine Passenger or Less Limitation in accordance with Doc No. IJ-MDL-668, Master Drawing List, Part 25 9 Passenger or Less, Rev. IR dated 7/17/2025, FAA approved 7/25/2025 or later FAA approved revisions. Continued Page 3 of 3 1. This STC is applicable to all serial numbers for the Textron Aviation Inc Hawker 800XP. Continued Page 3 of 3 5/29/25 7/25/25 Kreg R. Voorhies, ODA Lead administrator Cert Works, LLC ODA ODA No. ODA(AIR)883887-NM 3 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number Date o transfer: ST12091DE 3 07/25/25 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number ST12091DE Description of Type Design Change Continued: Doc No. IJ-ICA-668, Instructions for Continued Airworthiness (ICA), Rev. IR dated 7/1/2025, FAA accepted 7/25/2025 or later FAA accepted revision are required to be made available at installation. Doc No. IJ-FMS-668, FAA Approved Flight Manual Supplement, Revision IR dated 6/18/2025, FAA approved 7/25/2025 or later FAA approved revision, is required for this installation. 2. The installer must determine whether this design change is compatible with previously approved modifications 3. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission. Certification Basis: Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the Textron Aviation Inc Hawker 800XP 9 Passenger or Less Limitation installation is as follows: a. The type certification basis for Textron Aviation Inc Hawker 800XP is shown on TCDS A3EU for parts not changed or not affected by the change. b. The certification basis for parts changed or affected by the change since the reference date of application, 5/29/2025, is based upon 14 CFR Part 25, effective February 1, 1965 plus Amendments 25-1 through 25-21. Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for this modification was determined to be: Regulations at latest amendment; None Regulations at an intermediate amendment; None Regulations at the amendment level in TCDS A3EU; 14 CFR Sections: 25.29 Amdt. - ; 25.783(a) Amdt. - ; 25.803(a) Amdt. - ; 25.811(a) Amdt. - ; 25.813(a) Amdt. - ; 25.1501(a,b) Amdt. - ; 25.1529 Amdt. 25-21; 25.1541(a)(2)(b) Amdt. - ; 25.1581(a,b) Amdt. - ; 25.1583(c) Amdt. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - End - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3 3 07/25/25 ## Every issue (1) - July 25, 2025: Issued, Current. [certificate](https://openairdocs.org/files/sha256/59/78/5978877439ac8edf76a5bd310b262a2adfc0eec70865588b37c30d6883318633) --- 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.