# STC ST11929IB

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Jet Aviation AG, Switzerland
- Description: Installation of a Medical Oxygen Overboard Discharge Indicator
- Applied: February 7, 2025
- Status date: February 27, 2025
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Foreign approvals: EASA 10073973 Rev 0
- Data sheets: [TCDS A12EA](https://openairdocs.org/tcds/A12EA)
- Certificate PDF: https://openairdocs.org/files/sha256/d9/ec/d9ec1c6a4ba5584fcc134783c466f810c64db7e7613cd823d86c70fa7f3eae3b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149860950020250303145615.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST11929IB

## ADs that name it (0)

None.

## Approved models (1)

- Gulfstream Aerospace Corporation GIV-X ([TCDS A12EA](https://openairdocs.org/tcds/A12EA))

## 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.

**IMPORT ST11929IB**

**JET AVIATION AG AESCHENGRABEN 6 4051 BASEL**

SWITZERLAND Part 25 Title 14 Code of Federal Regulations A12EA Gulfstream Aerospace Corporation GIV-X

1. The installer must determine whether this design change is compatible with previously approved modifications.

(See Limitations and Conditions Continued on Page 3 of 3) 02/07/2025 02/27/2025 John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service 3

1. Installation of a Medical Oxygen Overboard Discharge Indicator in accordance with Jet Aviation AG Master Data List Document Number JBSL-M-01435MDL-01, Issue 2, dated August 5, 2020, or later EASA approved revision.

(See Description of Type Design Change Continued on Page 3 of 3)

2. Maintenance in accordance with Jet Aviation AG Instructions for Continued Airworthiness Document Number JBSL-M-01435ICA-01, Issue 4, dated August 5, 2020, or later EASA approved revision.

3. Operation in accordance with Jet Aviation AG Airplane Flight Manual Supplement Document Number JBSL-M-01435AFM-01, Issue 1, or later EASA approved revision.

2. There are no oxygen lines or equipment installed as part of this STC.

3. Aircraft must be maintained in accordance with the "Airworthiness Limitations" section of the Instructions for Continued Airworthiness document listed under the Description of Type Design Change of this STC.

4. 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.

5. This STC is applicable to all serial numbers for the applicable models.

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## Every issue (1)

- February 27, 2025: Issued, Current. [certificate](https://openairdocs.org/files/sha256/d9/ec/d9ec1c6a4ba5584fcc134783c466f810c64db7e7613cd823d86c70fa7f3eae3b)

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