# STC ST04667CH

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Astronics Connectivity Systems and Certification Corp., United States
- Description: Installation of Southwest Airlines Interior Reconfiguration for Extended Leg Room (ELR) Cabin
- Applied: September 25, 2024
- Status date: April 17, 2026
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE)
- Certificate PDF: https://openairdocs.org/files/sha256/ed/d2/edd26ce1c292c452c19c1937524770756d605d4a784dd9d94ca02ebc47c2fc3c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198504238720260527180944.0001
- DRS record last changed: May 27, 2026
- Page: https://openairdocs.org/stc/ST04667CH

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 737-8 ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-800 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))

## What the certificate says

The certificate has no text we could read; open the PDF to read it.

## Every issue (4)

- April 17, 2026: Amended, Current. [certificate](https://openairdocs.org/files/sha256/ed/d2/edd26ce1c292c452c19c1937524770756d605d4a784dd9d94ca02ebc47c2fc3c)
- October 8, 2025: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/45/09/4509cba2cf5b4df7e76bde62abd10da8253ef7feecfd0ee8836abe5016b62bba)
- April 14, 2025: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/78/8f/788fc4ddc6e38af714e1fecc8b29f0a9e2f7a908b2fc7316a7839f5badea2013)
- December 13, 2024: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/7d/c0/7dc08816cc263251ca315796af5cd3323e9916eae40527341822c18263e1ba6a)

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