# STC ST09847DS - Type: Supplemental type certificate - Status: Current, Reissued - Holder: United Airlines, United States - Description: This STC enables activation of business mini-suites doors - Applied: September 15, 2025 - Status date: August 7, 2026 - Product: Aircraft, Large Airplane - Certification basis: Part 25 - Data sheets: [TCDS T00021SE](https://openairdocs.org/tcds/T00021SE) - Certificate PDF: https://openairdocs.org/files/sha256/a3/32/a33246cd0ec77410487196f7b02226153c4110e30b5493eb6e5c6c837edf9df2 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131414289220260811141828.0001 - DRS record last changed: August 11, 2026 - Page: https://openairdocs.org/stc/ST09847DS ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company 787-9 ([TCDS T00021SE](https://openairdocs.org/tcds/T00021SE)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: ST09847DS This certificate issued to: United Airlines 4933 Wright Road Houston, TX 77032 Part 25 & 26 of the Title 14, Code of Federal Regulations Type Certificate Number: T00021SE Original Product Make: The Boeing Company Description of Type Design Change: Model: 787-9 This STC enables activation of business class mini-suite doors in accordance with the MDL, AFMS and ICA listed on page 3 below, refer to PSCP ER2500R01900, Rev D, dated May 4, 2026; ODA project number: 98470. (continued on page 3) Limitations and Conditions: (1) This STC is applicable to all serial numbers for the Boeing 787-9 model series. (2) The installer must determine whether this design change is compatible with previously approved modifications. (continued on page 3) Date of Application: 09/15/2025 Date Reissued: 8/7/2026 Date of Issuance: 06/30/2026 Date Amended: Title: Raju Tumarada ODA STC Administrator United ODA-710450-SW United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: ST09847DS Effective Date: 8/7/2026 Extent of Authority (if licensing agreement); United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09847DS Effective Date: 8/7/2026 Description of Type Design Change: (1) Master Data List, 2500DA 16745 Revision -, dated May 26, 2026 or later FAA approved revision (2) The Airplane Flight Manual Supplement, 2500R01919 Revision B, dated June 30, 2026 or later FAA approved revision. (3) Instructions for Continued Airworthiness Supplement, 2500R01901C Rev -, dated May 13, 2026 or later FAA approved revision. (4) Revised EWIS ICA not required for this STC. Limitations and Conditions: (continued): (3) If the holder agrees to permit another person to use this certificate to alter a product, the holder shall give the other person written evidence of that permission. (4) The Airplane Flight Manual Supplement, 2500R01919 Revision B, dated June 30, 2026 or later FAA approved revision, shall be made available to the operator at the time of installation. (5) The Instructions for Continued Airworthiness, document number 2500R01901C Rev -, dated May 13, 2026 or later FAA accepted revision shall be made available to the operator at the time of installation. The aircraft shall be maintained in accordance with the applicable Instructions for Continued Airworthiness. (continued on page 4) United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09847DS Effective Date: 8/7/2026 Certification Basis: Based on 14 CFR 21.115 and 21.101, and the FAA policy for non-significant changes in FAA Order 8110.48, the certification basis for the Boeing Model 787-9 aircraft for the change is as follows: a. The Type Certification basis for the Boeing Model 787-9 airplanes is shown on TCDS T00021SE for parts not changed or affected by the change. b. The certification basis for parts changed or affected by the change are based upon Part 25, as amended by Amendment 25-128 and Part 26, as amended by Amendment 26-5. Based on 14 CFR 21.115 and 21.101, and the FAA policy for non-significant changes in FAA Order 8110.48, the certification basis for this modification was determined to be: Regulations at the latest amendment 25-0 through 25-128, and 26-0 through 26-5: 25.561(a)(b)(d), 25.789(a), 25.791(є), 25.803(c), 25.815, 25.853(a), 25.1301, 25.1309, 25.1529, 25.1541(a)(b), 25.1557(d), 25.1581, 25.1585, 25.1729, 26.11 Exemptions from 14 CFR Part 25: Grant of Exemption, Section 25.813(e) Amendment 25-128 - No door may be installed between any passenger seats that is occupiable for takeoff and landing and any passenger emergency exit, such that door crosses any egress path (including aisle, cross aisles and passageways); Exemption 23466, Effective March 7, 2025. (continued on page 5) United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09847DS Effective Date: 8/7/2026 Certification Basis (continued): ELOS findings from 14 CFR Part 25: Equivalent level of Safety Finding, Section 25.813(e) Amendment 25-128 Exemption 23466, Conditions & Limitations No. 3, 4, and 5. C&L 3: Each mini-suite can only provide accommodation for one single occupant for taxi, takeoff, and landing. C&L 4: Each mini-suite entrance can only provide access to that specific mini-suite (i.e., no other access to any other mini-suite or part of the airplane). C&L 5: Mini-suites must not provide an egress path for evacuation for any person other than the single passenger of the mini-suite. If an overhead flight crew rest (OFCR) is installed such that any egress path from the crew rest is into a mini-suite, the OFCR must have a limitation that no occupancy is allowed during taxi, takeoff, and landing. ELOS Memo #98470-CPP-25.813-1, March 2 2026. END ## Every issue (2) - August 7, 2026: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a3/32/a33246cd0ec77410487196f7b02226153c4110e30b5493eb6e5c6c837edf9df2) - June 30, 2026: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/b4/19/b419e0b8edb7ba896c54813fe9d9f77ed615dfd0b7f456898b72aedde5a21f7e) --- 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.