What it approves
Premium Economy Class Seat Relocation
What the certificate says
From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.
ST12089CH Global Aerospace Design Corp 151 W. 4th Street #50 Cincinnati, OH 45202 Part 25 Title 14 Code of Federal Regulations A28NM Airbus SAS A320-251N, A320-214, A319-115
1. The installer must determine whether this design change is compatible with previously approved modifications.
(See Continuation sheet 3) 01/17/2025 07/31/2025 07/09/2026 3 Premium Economy Class Seat Relocation in accordance withMaster Drawing List No. 24GR136-MDL, Revision F, dated February 24, 2026, or later FAA approved revision.
for Mr. Jason S. Deutschman Acting Manager, Central Certification Branch Compliance and Airworthiness Division Aircraft Certificaton Service
ST12089CH 07/09/2026 3
ST12089CH 07/09/2026 Limitations and Conditions (continued):
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.
3. FAA accepted Instructions for Continued Airworthiness No. 24GR136-ICA, Revision E, dated February 24, 2026, or later FAA accepted revision, is required for this modification.
Certification Basis:
See type certificate data sheet A28NM for complete certification basis
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Approved models · 3
Every issue · 2
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| July 9, 2026 | Amended, current | Certificate |
| July 31, 2025 | Issued, earlier issue | Certificate |