# STC ST09829DS

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: United Airlines, United States
- Description: Cabin interiors reconfiguration on Airbus A320 fleet
- Applied: September 9, 2022
- Status date: July 1, 2026
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Data sheets: [TCDS A28NM](https://openairdocs.org/tcds/A28NM)
- Certificate PDF: https://openairdocs.org/files/sha256/41/d1/41d1526c401a95f376023cb987ec47b47870da7aa98bb644db1b8b5d92045de1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103482473720260713153152.0001
- DRS record last changed: July 13, 2026
- Page: https://openairdocs.org/stc/ST09829DS

## ADs that name it (0)

None.

## Approved models (1)

- Airbus SAS A320-232 ([TCDS A28NM](https://openairdocs.org/tcds/A28NM))

## 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.

ST09829DS United Airlines 4933 Wright Road Houston, TX 77032 25&26 the Title 14, code of Federal Regulations A28NM Airbus A320-232

(1) The installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft. (continued on page 3) 09/09/2023 05/26/2023 07/01/2026 Raju Tumarada. STC Administrator, United Airlines ODA 4 Refer PSCP ER2500R01719, Rev C, dated May 20, 2023; ODA project number: 98290.

(1) Cabin interiors reconfiguration on Airbus A320 fleet in accordance with United Airlines Master Drawing List 2500DA16088, Revision C, dated May 24, 2023, or later FAA approved revision. (2) Supplemental Instructions for Continued Airworthiness, Document Number 2500R01721C Revision -, dated May 05, 2023 or later approved FAA revision. (continued pg. 3)

ST09829DS 07/01/2026 4

ST09829DS 07/01/2026 Description of Change (continued):

(3) AFM Supplement, Document Number N0696-D85 Revision -, dated April, 03, 2023, or later FAA approved revision. (4) No EWIS ICA is required for this modification.

Amended 06/30/2026 - Refer to ER2500R02039 rev A dated 06/12/2026. ODA project number:

98291. (1) Airbus A320 Series inline diode installation in accordance with United Airlines Master Drawing List 2500DA16088 rev P dated 06/24/2026 or later approved revision. (2) Supplemental Instructions for Continued Airworthiness, Document number 2500R01721C Revision A dated 06/10/2026 or later approved revision. (3) AFM supplement, Document Number N0696-D85 Revision -, dated April, 03, 2023, or later FAA approved revision. (4) No EWIS ICA is required for this modification.

(2) 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 design changes that are not significant in FAA Order 8110.48, the certification basis for this modification is as follows:

a. The type certification basis for parts not changed or not affected by the change is shown in TCDS A28NM.

b. The certification basis for parts changed or affected by this modification since the reference application date November 1, 2021 is based upon the type certification basis shown in TCDS A28NM with the following:

ST09829DS 07/01/2026 14 CFR Part Amdt 14 CFR Part Amdt

25.561(d) 25-64 25.869(a)(1)(4) 25-72

25.613(a)(b)(d)(e) 25-72 25.899 25-123

25.791 25-72 25.981(d) 25-146

25.812(a)(b)(d)(i)(l) 25-58 25.1353 (a)(b)(d) 25-113

25.813 (a)(2)(b)(3)(c)(1)(2)(d) 25-76 25.1431 (a)(c)(d) 25-113

25.853 (a)(c)(d)(e) 25-83 25.1585 (a)(1)(3) 25-105

c. The modification certification basis also includes Special Conditions 25-403-SC, A319/A320 series Airplanes: Seats with non-traditional, large, non-metallic panels, effective March 09, 2010.

ST09829DS issued 05/26/2026 ST09829DS amended 07/01/2026 4 4 Add Page

## Every issue (2)

- July 1, 2026: Amended, Current. [certificate](https://openairdocs.org/files/sha256/41/d1/41d1526c401a95f376023cb987ec47b47870da7aa98bb644db1b8b5d92045de1)
- May 26, 2023: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/a6/52/a652bc0f2e4cbaeddd21efa79f183f05003690198dc656003e35bf9e1a2d2b39)

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