# STC SR12419IB

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: KAELIN AIRCRAFTSTRUCTURE GmbH, SWITZERLAND
- Description: Installation of a cockpit floor window P/N 53001002750
- Applied: March 2, 2026
- Status date: June 18, 2026
- Product: Aircraft, Rotorcraft
- Certification basis: Part 27
- Foreign approvals: EASA 10088359 Rev 0
- Data sheets: [TCDS H9EU](https://openairdocs.org/tcds/H9EU)
- Certificate PDF: https://openairdocs.org/files/sha256/84/46/84466a2ef35fbd854406a153422b3f81135604d110b11fc3bade3a63715f0695
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134059680720260623140950.0001
- DRS record last changed: June 23, 2026
- Page: https://openairdocs.org/stc/SR12419IB

## ADs that name it (0)

None.

## Approved models (1)

- Airbus Helicopters AS350B3 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))

## 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 SR12419IB 6203 SEMPACH STATION**

SWITZERLAND Part 27 Title 14 Code of Federal Regulations H9EU Airbus Helicopters AS350B3

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

(See Limitations and Conditions Continued on Page 3 of 3) 03/02/2026 06/18/2026 John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service 3

1. Installation of a cockpit floor window P/N 53001002750 in accordance with AeroFEM GmbH Service Bulletin Number AEF-0694-SBU-0006, Issue 02, dated October 13, 2025, or later EASA approved revisions.

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

2. Operation in accordance with AeroFEM GmbH Flight Manual Supplement Document Number AEF-0694-FMS-0004, Issue 02, dated October 15, 2025, or later EASA approved revision.

3. Maintenance in accordance with AeroFEM GmbH Document Number AEF-0694-ICA-0006, Issue 02, dated October 13, 2025, or later EASA accepted revision.

2. For pre-requisite modifications and compatibility, refer to Service Bulletin listed in the Description of Type Design section of this STC.

3. Maintenance must be in accordance with Section 4 of the Instructions for Continued Airworthiness listed in the Description of Type Design section of this STC.

4. Operation must be in accordance with the Limitation Section of the Flight Manual Supplement listed in the Description of Type Design section of this STC.

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

6. 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.

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## Every issue (1)

- June 18, 2026: Issued, Current. [certificate](https://openairdocs.org/files/sha256/84/46/84466a2ef35fbd854406a153422b3f81135604d110b11fc3bade3a63715f0695)

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